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When to throw exception in soql for loop?
This exception is sometimes thrown when accessing a large set of child records (200 or more) of a retrieved sObject inside the loop, or when getting the size of such a record set. For example, the query in the following SOQL for loop retrieves child contacts for a particular account.
How to do soql in nested for loop?
As others have pointed out, you have done a SOQL query in for loop which is giving you that error. You don’t need to execute that same query twice. Once you run the query and get the data in a list, you can use size () to get the number of records returned by that query.
How are sobjects retrieved in soql for loops?
While the standard queries discussed in SOQL and SOSL Queries can retrieve either the count of a query or a number of object records, SOQL for loops retrieve all sObjects, using efficient chunking with calls to the query and queryMore methods of the SOAP API.
Is it OK to query inside for loop?
You are doing a query inside for loop, that is causing the error. You can query maximum 50000 rows at once. You should always avoid querying inside for loop. I have just removed the inside query and make it outside. Also, nested for loop is not advisable. it can exceed CPU time limit.
What do you need to know about soql for loops?
SOQL for loops iterate over all of the sObject records returned by a SOQL query. Both variable and variable_list must be of the same type as the sObjects that are returned by the soql_query. As in standard SOQL queries, the [soql_query] statement can refer to code expressions in their WHERE clauses using the : syntax.
How many sobjects are in a for loop?
The sObject list format executes the for loop’s once per list of 200 sObjects. Consequently, it is a little more difficult to understand and use, but is the optimal choice if you need to use DML statements within the for loop body. Each DML statement can bulk process a list of sObjects at a time.
When to assign a non null value in soql?
Whenever you declare a list of your own, you should always assign a non-null value to it, which may be either a new list, or a list generated from a query. You should prefer to initialize those lists in a constructor, so that all your initialization code is in one place.