This conference will now be recorded. Okay. So today we are going to discuss about batch effects. What is batch effects? And what is the use of this? And what is the best practice of this recipe and how I can create some database insertions.

Okay, so when somebody says better fix, okay or when somebody says that nothing works. So, this is like a combination of many things that I'm doing. So let's consider an example. You have 50,000 accounts okay to be processed in a system. So now, if a process is an account, let's I will query the record I will process my logic then I will go and operate in the system. Okay.

So now if you see the governor limit, so I cannot make 50,000 Records in a single DML for the tempo Let me show you how to call this governor division. What are the limits we have in the Salesforce? Okay, Then I'll explain why I'm coming to this better to see how many records can be queried in a single transaction count how many records I can update in single transaction and how many DML operations I can aggregate everything run by Governor limit depend resources. Now when you see okay let me go to the sum limit. Now, if we come here, so, see total number of associate I can use in my system, when I say search for difference in a transaction in a single transaction, you can use maximum hundred is a great EPG a synchronous limit. And if it has no limit, then you can use maximum 200%.

Okay in the semicircle, how many records you can query, I can query maximum 50,000 Records. Same way. When I say let me go to the end. In total number of DML statement how much you can use, you can use in a single transaction or you can use maximum one stupid DML statement. That means, in a single transaction, you can go and keep that always want to pretend for any insert, update, delete any kind of data person and can perform the same way. In this DML statement is DML statement can contain how many records total number of records processed as a result of DML statements can be maximum 10 current.

Okay, so these are the governor limits. Anyhow, I'll talk about governor limits in future all the limits what we have. So now, if you see this example, now I'm seeing I have let's consider 60,000 accounts to be processed. Okay. And now, I want to audit all 60,000 accounts. So now, after governor limit, I cannot do DML operations of 60,000 accounts in a single transaction.

So what we can do, so first thing, you have a lot of tasks to do. Let's do more or less you have exam after one week. And you have a lot of subjects to read. Okay, what to read all the subjects and you want to go for a job. So, what we'll do here now, you cannot need all three paradigms you will make okay. So this must be salary today, tomorrow This must be just splitting the complex task in different different parts CMI if you go to any class or any college.

So there you will see if there are many students comes to join the class. Again they convert that is some batch, location, morning batch, I'll have different experience dealing with either of these finished goods. So, depending on the number of resource or depending on how many records I'm going to process, I can convert complete operations in a smaller image. So, that kind of thing when you come, we go to better fix what it is. So, when I have some more volume of data to be processed, okay, so I can please that into a smaller unit okay smaller unit nothing but I can say this smaller unit as a batch we can convert all the stuff in a small small batch Okay, then how I can write this batch in Cisco in the upper example he has issues are not counted per se see they try to do all at a time let's not purchase history let's consider particular accounts.

So I may write follow or something I'll try to purchase it if you do that thing interesting your one transaction going to use how much resource in the same time if there is some other tension going on your system. So is that going to provide all resource okay if your transaction going to consume all resource and how other logic or other process will work? Okay. So it may have some deadlock thing may come or we may hit governor limit. So we split the long time running jobs in this model. Part by using bicycles if there is any process or any job which is going to consume a long time, okay, then that we can convert to a better price or we can split it into smaller parts by using by others.

So whenever somebody say to write a bass bass sea bass is nothing but technically it's a simply a base class. Okay, so how I can say my app is class what I'm writing is the best class. So to say that Salesforce have given some kind of interface to implement, okay. So now, see, for example, I will say, if noun see effects are Sunni. And to identify also Nina's company or Sunni Arab with a designation, it is a designation of the comma also name for this company. So our Sunni also known as a human but also need to go to his he's maybe a senior, senior software developer senior sales for delivery.

Okay, in that point, what happened here, so on Sunni identified by some tourism company recognized or Sunni as a senior sales for the same way he paid it off his class. So how I can identify it is it is one badger pics or not. So far that Salesforce operator interface the interface we call us that table interface in a database class in a database, database class, or you can say the interface name that we have like that i restored but Okay, so now let me show you how I'm writing a class and that class going to convert with that class. So now let's see, I have already logged in here. Let me let me log into this dialog box. Now, I am going to process all the accounts from my system with me.

So okay, so all account in my system. I want to update all accounts, address or shipping address. And I'll just go a dummy up For all levels, so right now in my system I have only few accounts but to the value in our unit system you have millions of accounts. So how we can process that when I'm saying that so I'm just going to write the simple epics class Okay, which I will treat as ambassadors. So, if you see anytime you want to convert in your desk as a backup, so, let me go to do go to create a class. Let's see I just made some neighbors account batch is a simple class I just have it now see, I am able to say this class no error, but sulfur say when you want to make any classes that class simply implement an interface provided by self service.

So I wrote something called implements if you want to implement an interface. So write implements, okay, why do you want implement one interface? What is interesting interface name is database stood vegetable, no matter ID. And I said, Okay, I can save it But see, there are Immediately some error Okay. Okay. Let me show you the error message first no type defined argument provided for database variable.

So when I go to use this additional variable interface, so it cell forces, this interface will be parameterised. Okay, so how All right? So in this interface, I'll simply right? I'm going to process some is hundred records, it may be account account object record, it may be any case object record or it may be any custom object record. So for all what I'm doing here, I need to be typed. So I'm just writing itself yes all right, okay.

Now see, I am trying to submit I will get some other errors. See, it says if you implement this interface, so now, in this interface, we have some other methods which need to be defined. So if you see that harvester vegetable interface, in this interface, already cellphones given some definitions say some declare the cinda method, which we call start method, execute method and finish method. So, whenever implement that is virtual interface you have to give definitions of these methods. So, without giving definition of this method you cannot use that as a special interest why I'm saying why Salesforce need such a way that these if I say okay I implement this it's a bicycle interface. Now, I will write a randomly selected XYZ method okay.

And you may write some other policy written in your cinema right symmetrical something else again now, how social understand what need to do okay, because all the all the activity or the logic how do we process independent essentials. So since was controlled No, whenever you want to batch that class. So we have specific methods we defined in the interface and that You have to implement in a class so that when the Salesforce epics runtime will execute, they will understand which method is called quadruples, the logic inside of that method will consider in that way. So, the moment I implemented that I was fed by similar interfaces. So, there is three methods, first method we call start method C, we have to implement the start method, without implementing start method, we cannot write it. Now, how will write the start method?

So, now we have seen the start method. I don't know how to write it, let's see, what is the syntax? So, it's saying to database start vegetable, yes, objects that start method is a method who is taking one parameter or thing but database management contest? Okay, that's fine. Let me write it. So something of writing your public, okay, so I don't know what return type I need to set right now.

So I'm just writing start, okay. Use a method a predefined method of bad investments. So in this place, what is fundamental going My parameter going to be see here database start by table context. So now I go here, I get my method name is database dot bat table contest okay. So let me write it competition let's I just give an MVC. Now see I easy this is a method.

So this method need to return something so it may be a void or something. But as for Salesforce in the initial source interface implementation, this method have a specific return type which we call database dot database properly database dot query logger to either sort of point to higher part I'm seeing and what it means okay. So you know my complete definition of method was I triple plus or my data was cluttered with vegetable interface with database intimacy this one Okay, so now I just say so now Okay, I get definition to start with, but I said there are three methods which need to be defined start execute and finish. So, now when they come, I got another is saying we have to implement some method which you call inadequate, let me write some methodology. So, public the syntax of inadequate method is going to be public void is not going to return anything, it's going to process my record public void execute, okay, there is a standard always you have to if there is a better there should be a start, there should be a decode, there should be a finish.

And that should be implemented with battable interface. Okay. So, in this example, what I'm going to do, I'm going to take parameters, mind vegetable context, nothing but they're interacting, same thing. But you will notice it comes in which sniffers or which class, it's common on the database data method, but we will contest let him just writing same specie, okay, and so Who so quarter records I want to process on this exhibit. So that is specifically at least have a subject let me and I discovered I didn't even write any name you can do. I'm just liking the syntax what should be and I'll explain what it is and why I'm writing all the transition part of the proposal everything.

So now there are let's see, I just wrote a QA let me save it. Because till now, you see, I cannot save it, I'll get one more error whatever, I have to implement finish method. So now I go here, I have written public void finish, okay. So here also it new parameter for different parameter, my parameter is going to be again database module context. Okay. So now these two things.

So now, what is left now I save it. Now I can save the class. But see is need to return something. So it's not allowing me so let's see, I just return it randomly trying to return null lets me. Let me save this. We'll see if something can be done okay.

So, now see, I can simply save this class. So, that means whenever you are going to write a better phrase. So, the proposal is that whenever you have a long running process in the system you want to split into smaller smaller jobs okay. So that you are not going to utilize all the resources available for your system. So, you convert to that logic in that class or that job. So, to convert that it's simply our customers who implement this enough that I will start by simple introduced and this interface of the methods that execute and finish and this is the syntax of all these parameters, we have to implement this a CPC any class each will have like this implementation.

Any confusion? No. Actually, this is the standard way to define the matchable class. Yeah, every bill. So every time this will be syntax Correct always then the logic method inside okay. So when you run this Destler in my system not selfless understand Okay, past I will go on exhibits technical financing that let me explain what does it mean?

Okay, now you see that interesting now how it is going to process in the system. Okay, now let's consider, I'll take a very small example you have 1000 records to be processed. Now I don't want to process anything like 10 hundred captured pieces. So what I'm going to do here so now I detained one dustless for this. So passport I said, I have something called stat. Okay, now I have something called execute it then I have something called finish.

So now when make use of stat, so let's see I have something a lot. I have some database. Let me So you notice here Okay, so let's see this email. Okay, so now I have some records here. Now what I'm going to do here, let's see, this is what Object I have you know folding liquid Okay. So now, so, I gave this method nothing but like my start method okay this is my execute method Okay, this is my finish method.

So what is going to happen here? So at this moment so whenever you want to process all these records, we have written one betta fish with all this implementation. So now when I do some stance on your badness executes or when a bad starts, so now I will declare you know, on each like CDs best place I want to convert in small small parts instead of processing all thousand records 10,000 Records in a single time. I only process okay 1000 records at a time. So no 110 thousand. Okay, then I've heard that too.

1000 Not involved, but now I'll get harmony with 10 jobs. So now What are the records to process let I want to process the account to get all accounts on a system where my rating is not populated. Okay, maybe my rating is empty, or I want to process all the accounts who are calling billing City of New York. Okay, I came to condition that quarry. So I will write what record to be processed that query conditions, everything I'm going to write on the spot, okay, on this place. Now, if you see, it is going to return me a query locator.

So it's not going to pitch me everything. But the query portal, right, the so called statement that will make a pointer to my object here, okay. So I look at where my queries, how many classes, then I specify, I want to process 1000 records on each job. So then I'll come to a good method. I'll process my cost one color, one job I personally wanted and then this job process started then The legal process again for the second job, second job with another one like this I will process to complete my all jobs bypasses my 10 jobs and when I completed my tender once I complete all this process, then I came to my finish method. So, now, what let's see you wrote a bad shop, you initiate the transaction, it may take five minutes, it may take one hour also, I don't know it depends on the volume of records.

So, you cannot wait to see what is happening okay. So, for example, if you want to see the centers in the system, you have to go to monitor Okay, then under the monitor, let me show you here under the monitor, you can see pictures. So, if you have any job, what is the status of that job, what happening you can see here, but now you cannot wait for one hour to see you may forget. So, then what we can do, we can write for example, we can write some kind of logic in the finish method. Okay, once more Job completed all the jobs process then I want to go some specific logic it may be a sending email or it may be do some other activity anything. So now if you see on this complete scenario coiner a backup is so completely my start method going to execute exactly one thing My fingers are going to do exactly one day see takes my corrugator where my data is then processed the execute method depending on how many number of records you have, and for batch how many they call you on the person's that maintains my glute muscle file in this example, it is going to fire 10 times then once all record process complete, then I'll go on to finish better.

Got my point? What is the purpose of all these things now? any confusion, Shani is No, I'm okay. Perfect. Okay, so now can you tell me that variable scope? How because coming coming, they're coming there Okay.

So now you see, okay, any I explained this now I recommend overlay. So now I said I'm going to purchase 10,000 Records and each of these job going to continue in the acute method if you see there is two parameters for an investment contest who depends my contest memory of my bad shop, okay. Now, what are the records I want to process on each job that that may list of records. So now if you see in this example, this is a list of thousand records I want for each job. So this number of records going to be captured are going to be passed to my actual job with this parameter. You may give it any name, scope, or anything you can give.

Let's I don't want to just I cannot directly account also okay. lists I can say it's a account list that also I can do. It's the number of records I want to process right now on dispatch. Okay? So each time we need to include English unsettled, so what record I want that is going to be in the second parameter, the list of record, it may be a list a subject, list or specific object if you know participant do purses in that way, yes. And only bathroom contents is nothing but the memory or you can see the context around the bedroom.

Okay, always semi. So let's see, we will write one small simple batch. Okay, so I want to have on a sequel, which I say, let's see streaming account. So cool. I want to query all my code. See, I'm just writing a string not complete a SQL statement.

A SQL statement means I should write something and that should return a list of records what is a string like a string name equal to As soon as I say my understanding typing a string, select my circles would start with this bracket where it would have entered in the record simple string, select the ID from the account I want to process. Let me put so if you see on this account, okay, so I want to change billing city of all the accounts on the probability I want to change me, okay, let's see port all accounts. I am going to change or not see from public to private, for example, okay, so now select ID, and I want ownership. Let me take the field name, view field ID here. Okay, I'm just going to this field called ownership. Okay, now I came here, actually to add ownership from account so you can put some condition if you want you you have Reading.

Anyhow you notice when you can add any kind of condition here. So now here in a thesis appeal, what I do here, now I want to hire my core integrator. So to do that, what I'll do here, instead of returning null, I want to return something called get something called called locators. To get the free locator, we have a method which we call database dot always it says nothing to witches get will use the standard method in the Salesforce if you pass one string so we'll okay that string will go and connect to my database it will get where my query is going to execute the look at for that okay. So he determines dot get a limiter with parameter a string, nothing but my SELECT statement. Okay, good return me that I was filled with nothing but as I said, these were made the cuts are there.

That part is pointing to there right now. okay with this I got it now the start method executed now I got my all accounts just thing on ignition of the AC till nothing world it will have one view kind of thing but I have my all accounts for understanding I'm saying this one okay now while process it let's see I want to process all these accounts okay in such a way that so I will change my account ownership to private now all the account what I need to preserve let's consider this query going to determine temporary records. So past 102 I change ownership to private so how I will do so now I writing for Okay, so now I see I am going to each account sec into into my sec list so I got my all accounts on this batch or on this job. Then I just go on ODP, sec dot honestly very simple Measurement writing, okay, so don't know c equal to private.

Okay, now once a test and I just come here, I just update to my ACC list. Okay. I just do dismissed. Okay. So now, once I complete this one, I just want to send email. What I do, I'm not going to explain the email logic completely.

So anyhow, we'll discuss about that in coming sessions. So simply, I'll just write one statement now. Okay, so we have a single email message plus, which you have used, and just directly copying the code to show you that. Okay, so once my all job completed, I'll send the email just some sample code with no mistaking that one, I'll just send it to just analyze from discord also. So if you want to send any email from the system, we have a class which you called single email message. We had to build this method single email message and we can send it okay there are many methods to set it okay let me I needed two inbuilt examples for that instead of writing from the scratch I'm just copying something from Iran just some code I'm just swapping Let me see if I get some hidden not getting in law.

I'm going to leave that are you anyhow and I'll teach you they were the email services that I will explain about this class. So there is a class called single email message where you can write all the logic and again, close it, okay. So this part is going to execute exactly one thing. So now if they say bad Joe when they serve it, okay, what is going to happen here? So now I can process all these requests. Now, okay, I wrote about colors and how it will exhibit in the system.

Okay, I understood, when I'm writing a trigger, that trigger is going to equal when you do the DML operations, but how am I bad? Okay, so there is whenever we're saying the transactions, there are two types of transmedia one we call synchronization. Okay? And one we call a synchronous, okay. So, normally when you synchronize in the sense, let's your process starts from here, okay? between this time and now you're like whatever logic you have written, let's line or wanting to go line to line, say you're from line four, we just call one method.

Okay? Just to call a method and that method, let's consider how it in some areas and deciding one method here. Okay, now, this method of water. I think here, inside this we have some logic to process Something. So now to thing here. So now you just see after you call it.

So now comes day five. Do you want to wait till this method isn't complete and continue, or you will not wait the output or return on this method? And we'll continue the tradition. Okay to think like, for example, you will give me a task. Let's say you have three tasks to complete. Let me make it diagrammatically Can you understand it?

Let's see, you have task one, task two and task three to complete. For task one, you Sharon and task two you just assigned to me. Okay, I'm just doing this task two, okay, it may take too many time I may take two days time also. So to have some you have not so do you want to wait till the time I will complete the task and then you will come to continue this or you just assign the task to me and then continue your work. You instead of waiting for them doing okay in this Way tronics I'm going to do is sin crossing our fingers are synchronous in the sense you are saying the task to me and do not do it, you continue your transactions nested, or do you want to do you give me a task and you do not wait, what output and when to you, you continue other tasks, that is nothing but called a synchronous.

When I say synchronous, you give me a task and wait till the timing complete and do the rest of you. That's called synchronous. So okay. So in this place, what happened, all the benefits, what triggered it is as soon as whenever you're triggered, including the back end, the back end in the background job, okay? And it will give the reject you in order to hold to complete that presence. If you have somewhere in between, it will not hold.

Okay, so now what happened here, so like this, how I can excuse me better. So when I'm saying I like to do a bad job, we have a specific command for these to execute. So what we'll do here, let's, I want to process this code. So let's, what I'm doing here right now I'm showing you in the developer console. So I have a specific command to hire that will take care of that job. Let me show you that.

Any computer until now. Okay, I'm just going to debug upon a dude anniversary window. Okay, I'm just moving all this stuff, right? No nothing. So now what I'm going to do so just just give me let me plug in my charger. Here the conference will now be recorded.

Third, which will help us to execute the batch if you see when you came here we have a good batch. Let me maximize it. There are two things here when you're including a batch, okay. So, let me go here. Now I have tend to run a function I want to process the batch of 1000 at each time, okay. And sometimes you may say okay, by default Hamas helps with providing take that okay.

If you want that we are to method here, the database dot batch you will see that was not a good bet. See, if you don't want to specify that site, then you use this method or if you want to specify the best age on each batch, how many records we process them, right this data will start a good batch. Okay, with number of jobs, number of records to be processed for batch. Okay, so now finally But you're bold, nothing but which class you want it to be so fast. I want to execute my class call as a con badge. Okay, I just wish we hit upon that dot sec equal to new account badge.

Okay, nothing I'm doing. So now, I want to execute that and graduate. Okay, so as I have a few records in the system, I want to execute this best class. Well, in order to get the best class, you have to use database dot equal batch method. And if you want to pass how many number of records to be processed, then we'll go for this. Okay, so my last name, the instance of that, and how many records and I want to process three record how today for example, I'm saying Okay, now the moment I execute this, what will happen so badly in the background Salesforce will see okay, this is a class whether implementation of database interface and I have that in good Until a good start method passed then take the correlator then start the dude method and each method each time it will take it will take only three records then process it okay and everything we can track under my monitor if you see here let me go right now we don't have any entry on this open the job extra Okay, you see I have nothing is good now i want i want to integrate it so I just wrote this method and the moment I wrote it I wrote a goat Let me see what happened.

Okay, so on extra token sec as well some something error is there a string okay, but I was trying to process but there is some error. Let's see, what is my error? ACS Okay. Good. See, I just thought normal like this string already depends right from the my single input. Okay, those are here.

System Got an okay when trying to fire so Kelly it's not a circle string because I have mentioned it inside the single code. So now it's a variable. So now they're going and going and executing it right just click Execute. Now we'll go to monitor, we'll see what is happening not just replace it. Now you see there is a bad job which is purchasing and total became pipe does depending on how many record I have, okay, and each time when purchasing America will process how many records will fail, everything will be displayed here. Okay, I'll tell in the background what is happening was being tracked Everything okay?

So see these accounts getting processed in background but still we can continue other activity whatever we have. It's processing like this. It will take all the accounts. Let me go to account and in the all account though, owner civil shares to private if you go here, you can add any piece of logic I'm just showing a sample. This will receive training David, nice to see this epic. So, let me see supposes successfully or not so nicely completed hotel page purposes.

That means how many Could I have returned my system? Let me check it willy nilly like maximum five in a typical intercourse or less than 15 more than 12 mostly. Let me see how many accounts Oh yeah, I just go into his account I'm just pulling all accounts here basically how am I gonna put a container so that means I had 14 accounts and on each account each job I'm processing three records. So how much I am getting nothing but four point something nothing What will sequel to five jobs. So four jobs with three records and one job with remaining two records nothing more totally. we're converting my resource to hive different jobs and he geoprocessing to setting my account going here, my account ownership to private the logic for accuracy is included here.

Instead very simple bencher bird. So now what we can write the complex badger ball so depending on what kind of logic we want to include, okay, the moment we execute it, what happened? We didn't have any confusion. So, we can only have one execute method in batch class, right? Yes, we have we can only want a good method with this syntax. We can override it.

Yes, exactly with the syntax public void execute, database that will contain a list of subjects will have only one method. Okay, and that object and we can only have one object on which we can update the records, right? Likewise, if not technology, yes, depending on your source record, record from Here it may be anything okay one source record. then here you can see once I got the account I want to operate in contact also okay that also I can do I have many accounts then I can write query to get my content or secret yes then I can process my contract manipulation and audit also there also I can do inside this based on logic we can manipulate whatever you want not to do undergird we can proceed. That is okay. No question or any?

Yeah, good. Perfect. I mean, the moment I started my bad job, so, okay, I saw in my MapReduce job somewhere, yeah, okay, interested. But in the background, what happens where it's being stored? Okay. The moment I just fired this method, what is returning to me?

Let me show you a moment I wrote this at a store. Good bands. Okay, what is returning it's going to return me something for returning returning a string, if you see this part is returning to me a string type of thing, okay? So what is a string? So this is nothing work, whenever you will decode this Bajau, it is going to return us something called job ID, this is the job ID assigning to it. Okay, so let's see, I can see job ID.

Okay. So it will return me the current job ID for this user. So here, this has been tracked, let me show you in the object level. Okay, then I'll tell you, if you want to query that object and you want to see how many jobs you have or how many it's a very small job is completed in just few minutes. So you may have the complex jobs which may take some time. So to get all this informations, okay, everything gets stored in a single job.

I think I think so. Okay, I'm just kidding. If you see this value this object, okay. So let's me just query fulfilled in a debt job type two is class status how many purses total job number of error and method name something is calling it right now putting everything in here I live in wonderful. Okay. So you probably got 12345 so we want to persist it spell it.

So see this is what my class ditional intuited right now okay. So now I have completed our manager five jobs we processed so if any error message comes that also we can see at this part okay. So that we can get like this. If you want to get whatever the what are the jobs we have processed or that everything we get we can get from this and the good job this data mustard vegetable coin you call it good batch, it returns me a job ID which is nothing but this record I do get it. Okay. So for example, When we initiated the job, let me first say this once again as typing a system or debugger.

We'll see if I'm getting anything on this place. I just think you could it can take some time. No worries. I just refreshed is fully ready to go. See, I got my Java digital in English 172045 aq g7 if you see this So, I have got this one, but that's weird. Okay, so now EPC main job for this coming.

So in my debug log, this is one of my job ID. So this is the job initiated for me. Okay, let me go to this. Once again. see from here, I'll get that job ID whatever you have. Okay, so this returns me a job ID a dirty or you know, intuited.

So now, okay, we understood how to write a Bachelor's okay. So it implements some interface, the methods and the logical can identify good method and we can complete it. And when you do good, did we get a job ad and nothing but that's it of my acing optics job record, okay, it may happen sometimes you get the job and in between you want to stop it. So whenever you want to stop any job, we have a predefined method under the system class, okay, my back job started but I want to stop it due to deadlock or something. So you have something about Joe whose job we want to stop. So you can query the jobs.

Okay, let me I have this record. So this record is still now in the full status. I want to stop this effort. So I just copy this ID right now. Okay, I can get what are the jobs in holding are queued. I want to stop it.

Okay, you go here. And just system that about job. You can pass it on just hard coded but you can query and pass the job ID 41 to stop it or you've already gone to our it just faded. Okay? So he didn't give the semicolon let me put it is executed soon now that Joe will be our third. Okay so you can use standard words up to about the job whatever you want.

Let me open this if a suite is submitted the same way you can think rolling if you wanna vote then you can use the system at our job. And in the finish method you can write if you want whenever the person is completed, I have now five records some type jobs successful. Okay, out of hundreds so it happened out of my three jobs for success to Wi Fi. So in the finish so we can write a logic to notify you Okay, what are the jobs being held how many jobs being successfully passed that Academy notify to you in a male female or some some database entry with a finish with the logic? Okay. Dylan, Any question?

It's quite easy. Just have the initial board when you do or not. So now, the moment I clicked the moment I wrote this database dot execute batch, the batch intuited immediately. So let's just think scenario, I want to integrate this flow Remini batch, but I don't want to execute right now I want to choose after a few minutes after some time, okay, so how we can do it. Okay. Any question to see if you go to System class, okay, I'm just showing the classes mainly speak to this bad job.

Okay. If you go to System class, like a job board job. So now let me go let's see if there is any other methods. We have. For my bad job with me, there are many methods given by Salesforce okay for my this because anything So, you see there is a method where we can get scheduled batch okay they should do anyhow this something else I want to show the serial badge. So, this will be a stick so, which class you want to like let me write again.

So, there are two overriding methods we have for this Okay, one text, my bass class and my job name and my after how much money I want to do good and one more will take my best class job name after how much money I want to execute my batch bad job or what is the scope of this? Okay, for example, let's see why I need this one. Right now. I'm processing one bad joke. Just think insane what Winner processing a bad job you saw there are many jobs already pending in the system which will take more few minutes conflict instead of invoking your job immediately right now I will okay if that kind of limits we have okay or maybe we are our resources are all busy right now. Okay then what we can do we can just schedule these to go to a standard usual after 10 minutes okay.

So why don't we just go to the system to do batch Okay, this method which one I want to do, I wanted my vegetable nothing but mine the class name or his main job name, okay. Let's I gave job Nimbus to do batch after 10 minute okay. So, that means from now, how much do you want 10 minutes, how many even questions I want to process two records. If I wrote like this and I just execute this lengthy I see like easy to highlighted. Now, I am not exhibiting in this batch right now. Okay.

I know this will have sugar So let me put it here. This tool and I'm using right now, Integra ledger. The moment I do it, so I am not exhibiting my bad job right now I'm just holding this badge of ignition for 10 minutes. Let me see how it happens. If you go to monitor Let me refresh this page you will see that the entry okay? No.

So, there is nothing What does he do now, we say the job is not completed. If you go to this job, see there is a job to do to execute after minute who submitted submitted at 809 oil will run it will run at 819 instead of 10 minutes this job will start execution. So if you have that kind of scenario, then simply you can use this system dots it will batch the batch you can include after a few minutes. So let me show you the moment you do that what will happen in the next That manifest is good okay. I think gave me a right number everything is bad not started it. So, where it will be this is going to be in my queue now, once at that submitted time the next one time whatever you see here, once we reach that time, then make use notes that that they will come to the acing epics job or main point any computer see whenever you want you can call it a singer genre and can continue okay can we also specify time that at that time you want to run a batch likewise don't do run batch at 11 o'clock daily Okay.

Perfect that pattern communists should you look back so next topic of this we are going to look at doing Fiddler but how I can see do one job Run every day at a particular time. For example, if you see when you are writing is when they're creating a report you can see the report to run at any time. So, same way we can schedule any class to execute at some time okay. So, now if you see on this part whenever it comes to the batch we have status we have different types of centers. So, what kind of settles my badger can can persist. So now see, right now is a completed arbiter same way we can have subtle something called holding my job can hold for some time, okay, we submit the job and it can be in the holding status in the we have something called flex queue, the queue where many jobs are being pending, okay.

In that queue, it can be in the holding status till this job not moved to queue for processing. Okay, so once we push this job to be to queue for processing the status of the wheelchair took us all the things we Available in my flex job. Okay pesky. We have different labor queues, everything will go to tech school. Let me show you one one more object also, let me go to your file, open object the background object I'm saying you so there are many many, many objects like the classes what you write the classes whatever right? What is the read everything is stored in some some object skirt.

So same way. Like as we have a one object called contract, maybe it's not displaying here right now in the contract, what we can write a query on the controller to see see, I want something called called digger. This is not coming here, but let me write one specific query for this. Okay, some of you are not expert directly here, but still, we can write it, okay. So I'm just writing here, select ID. Okay.

Times triggered or many pulses that loudness pertain when I'm going to fire it okay from current trigger there is object called Chrono Trigger, which is going to store these jobs okay. So, let me query everything Yes. We have one record now in the queue for initial this particular store, it is stored in the controller, okay? It is not triggered anything till all the cylinders, all the cylinders will be stored in a container. Okay, let's see this job. What I have pointed is going to pan the next going to fire at a specific time but we see in the US grid.

Okay, so to get that we have a column called next higher time. Next time I got it the timing 14 116 19 so if you see this the timing What do we have here? Family swing, my server time will display my server timing when you need to be okay in that way, so it does depend what other jobs you have where you see when you schedule a job that job being tracking frantically and once we go into a judicial that comes to my asking Okay, so currently my jobs have been processed, okay. So, what did you hear the moment you do this, it will guess the interest came in the counter directly, okay. So now, as I said, initially, you see a holding status. Then we came to my queue shutters, so when you came to queue is not exuding immunity.

Take some time to prepare, okay, prepare in a sense, I will prefer to get the record producer. So that record how we'll get we have the static method to execute to process it. So, at that moment, my job will go in the preparing mode, my status of the queue, who will be status of the record will be preparing the start method of job will invoke that moment, okay. And till the time I got my karela cutter is typically shutters that means, point I came from Plex que tu que stutters immediately, I'll move to my like move on the class. Okay, I'll start my start method. And that moment, my status of the record job record will be in the preparing and the start method illegal, it may take two minutes, it may take two seconds, depending on the complexity of my query to get the record, okay.

So till that 10 minute preparing status. Once it's done, then you will then the record will persist with a given method and that time status is going to be processing And all this others what I'm saying you can see a very large volume of data you can see all the successful processes Okay, once process completed then it will be completed like like now you can see everything completed correct everything is completed completed our author arbitration it okay. So, first we come to holding then queuing then preparing then processing then if successfully completed with the code will come to completed each failed will come to averted or fail if you fail if you forcefully call system dot our job then it will go to about an hour to satisfy any confusion I see looks complex or see oh can you call repeat the Okay, so now you see my jobs with different centers, but directly my job not came to completed.

So what happened either so whenever you process it, so first we move the record to my flex queue, okay, in the queue when my record is there, the record status is going to be holding so it is not processed till now let's for example, if you see his record, okay, which is pending for the person now the record status which will be hold is in the polling setup. I'm not forcing it, when the time comes. I'll move this record to persist when I take that so there are many, many records in the in the queue to will tutor Okay, so, for example, let's see, I have a specific queue for additional all records in the system. I'm not having only one record. I may have many records to processor May the cost process and so whenever a new record comes, it comes in a queue. Now my record Sara comes to cute one, this is complicated processed, this is processed, then I'll come to you the moment is our processing okay.

So, Pastor link you could miss that letter and as a written badger will include a start method, get the records then go to a durable job then invoke the finish method and the moment I do this start method it is nothing but I am putting the status of the record processing which is mentioned here purchasing previously preparing okay then when I start the ignition of the method, then nothing but this method I usually start then I shot my record services posting and if my all the jobs in Twitter successfully, then my status of record will be completed as you can see on this record, okay. If there is some error it can be filled, or a few posts will stop their status filters to amateur. Clear yes Perfect. Any more computer? Okay. Okay, I'm not taking more time we left out few points in the metrics.

So tomorrow we'll combine the scheduler and better place to completed. Okay. So I'll give you a small example. If you look, I'll give you some then tomorrow I'll give some questions for you to write up aspects and schedule that to educate everyday. Okay, but it's more funeral gear, is it? Okay for today?

I'll stop here. But tomorrow we'll talk about the best practices of these metrics. And there are some other interfaces like key to how to maintain the state, how to make the future call outs from the best effects, all the scenario I will talk tomorrow. And what is the best practices to follow when writing writing a bad job? And then we'll go to this video plus, okay. Perfect.

Okay then we'll meet tomorrow in the same day. Okay, yeah, thank you. Okay, so the no condition to decorate