Why do we write the IF GT_VBAK IS INITIAL statement in for all entries?

Question

Accepted Answer

The IF GT_VBAK IS INITIAL statement is used to check if the internal table GT_VBAK is empty.

The statement is used to avoid processing an empty internal table.
It helps in preventing runtime errors when accessing the table.
By checking if the internal table is initial, we can handle the empty table scenario gracefully.
It is a good practice to use this statement before accessing the internal table.

Accepted Answer

Some of the Prerequisites are there for FOR ALL ENTRIES Clause.

You need to check NOT INITIAL condition as if the internal table is initial then no need to for select from data base so it will increase the performance.
Second is you need to sort the internal table by key fields, so the fetch will faster from database.

Accepted Answer

For better performance.because for all entries first we take data from one table and then followed by that data we collect data from other tables.If the first database table is initial(empty) as per requirement then there is no need to do collect data from other tables.

Why do we write the IF GT_VBAK IS INITIAL statement in for all entries?

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