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How many records does a SOQL query return?
50,000
The total number of records that can be returned by SOQL queries in a request is 50,000. If returning a large set of queries causes you to exceed your heap limit, then a SOQL query for loop must be used instead. It can process multiple batches of records through the use of internal calls to query and queryMore.
Why we use offset in SOQL?
When expecting many records in a query’s results, you can display the results in multiple pages by using the OFFSET clause on a SOQL query. For example, you can use OFFSET to display records 51–75 and then jump to displaying records 301–350. Using OFFSET is an efficient way to handle large results sets.
Which is the same as Count ( ID ) in soql?
COUNT (Id) returns the same count as COUNT (), so the previous and next queries are equivalent: COUNT () and COUNT (Id) in SOQL are equivalent to COUNT (*) in SQL. For COUNT (fieldName), the AggregateResult object in the records field returns the number of rows. The size field does not reflect the count.
When to use count or count ( FieldName ) in SOSL?
The number of rows returned by COUNT () includes null values that match the filtering conditions of the query. You can use COUNT () with a LIMIT clause. You can’t use COUNT () with an ORDER BY clause. Use COUNT (fieldName) instead. You can’t use COUNT () with a GROUP BY clause for API version 19.0 and later. Use COUNT (fieldName) instead.
How big does a Debug log have to be?
Debug logs have the following limits. Each debug log must be 20 MB or smaller. Debug logs that are larger than 20 MB are reduced in size by removing older log lines, such as log lines for earlier System.debug statements.
How to calculate number of rows in soql query?
To discover the number of rows that a query returns, use the aggregate function COUNT () in a SELECT statement of a SOQL query. Use one of the following forms of syntax for COUNT (): COUNT () COUNT (fieldName) If you are using a GROUP BY clause, use COUNT (fieldName) instead of COUNT ().