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Performance Problems Caused by Nonlinear Coding

Imagine the following situation: An important customer had been using your program without complaints until last week, when he had to process a very large contract with 20.000 positions. The customer...

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The SQL Trace (ST05) – Quick and Easy

The SQL Trace, which is part of the Performance Trace (transaction ST05), is the most important tool to test the performance of the database. Unfortunately, information on how to use the SQL Trace and...

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Runtimes of Reads and Loops on Internal Tables

In ABAP coding many performance problems are related to the handling of internal tables. Especially in the case of nested loops on two large tables, it is important for the runtime of the inner...

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How to Measure Operations on Internal Tables

The efficient handling of internal tables is one of the most important performance factors in ABAP programs. Therefore it is essential to know the runtime behavior of internal table statements. This...

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The ABAP Runtime Trace (SE30) - Quick and Easy

Besides the SQL Trace, the ABAP Runtime Analysis or ABAP Trace (transaction SE30) is the most important tool to use, if you want to test the performance of your ABAPprogram. Unfortunately, it can be...

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A Tool to Compare Runtime Measurements: Z_SE30_COMPARE

This Web log introduces the report Z_SE30_COMPARE, which can be used to compare ABAP Runtime Traces. Comparing traces can be interesting in many respects; for example you might want to evaluate the...

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Nonlinearity Check Using the Z_SE30_COMPARE

In this Web log a small tool is introduced which can be used to compare hit lists of two ABAP Runtime measurements with different amounts of data. You will learn where you can get the tool, what you...

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