Contents
- 1 What is difference between Database QueryLocator and iterable in Salesforce?
- 2 What are the differences between select Database query () and Database QueryLocator ()?
- 3 What is database BatchableContext?
- 4 Can we access Salesforce database?
- 5 When to use a querylocator object in soql?
- 6 When to use querylocator to bypass Governor limit?
What is difference between Database QueryLocator and iterable in Salesforce?
QueryLocator is used when the scope is directly taken from a SOQL. QueryLocator 50 Million can be returned records. Iterable: Governor limits will be enforced.
What are the differences between select Database query () and Database QueryLocator ()?
Difference between Database. query() and Database. getQueryLocator
| Database.query() | Database.getQueryLocator |
|---|---|
| We can retrieve up to 50,000 records. | We can retrieve up to 10,000 records. |
| If VF page doesn’t have read only attribute, use Database.query(). | If VF page have read only attribute, use Database.getQueryLocator(). |
How many records can be fetched using Database QueryLocator in start method?
QueryLocator as return type to the start method when you are fetching the records using a simple select Query. Total number of records retrieved by SOLQ queries are 50,000.
What is database query in Salesforce?
database.query in Salesforce allows you to make a dynamic SOQL query at runtime. You can build up a string and then use that as a query string at run time in the database.query statement to make a SOQL call that is determined at run time.
What is database BatchableContext?
BatchableContext represents the parameter type of a batch job method and contains the batch job ID. Represents the parameter type of a batch job method and contains the batch job ID. This interface is implemented internally by Apex. Database.
Can we access Salesforce database?
There is any way to access database of salesforce to get directly Lead, Account and contact information as well as able to create lead, contact and Account into salesforce application. Using Pro and mot want API enabled from salesforce.
What’s the difference between a iterable and a querylocator?
Another notable difference is the QueryLocator can return millions of rows for a batch, whereas the Iterable can only pull in the synchronous query limit.
What’s the difference between database.querylocator and iterable in batch apex?
What is the difference between Database.QueryLocator and Iterablein Batch Apex in Salesforce.? Database.QueryLocator: 50 Million records can be returned. Iterable : Governor limits will be enforced. So, we can use upto 50,000 records only. Else, exception will be thrown.
When to use a querylocator object in soql?
Use the Database.QueryLocator object when you are using a simple query (SELECT) to generate the scope of objects used in the batch job. If you use a QueryLocator object, the governor limit for the total number of records retrieved by SOQL queries is bypassed.
When to use querylocator to bypass Governor limit?
Use the Database.QueryLocator object when you are using a simple query (SELECT) to generate the scope of objects used in the batch job. If you use a querylocator object, the governor limit for the total number of records retrieved by SOQL queries is bypassed.