There can be times when you need a list of active internal tables while you are debugging ABAP code.

The first method, lets you see which table required a lot of memory While on debug mode follow the menu path GOTO->Display condition->memory use

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What’s The Difference?

A lot of people use the SELECT SINGLE statement to check for the existence of a value in a database prior to running a large report. Select singles are also used to look up values from a database where that value is going to be constant for the duration of the program run, or the value is being used to validate some user entry.

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