Wednesday, August 1, 2007

Performance Tuning


What are ST05 and SE30 used for?

ST05 SQL Trace transaction

SE30 Run time analysis transaction


What are simple rules for increasing performance?

a. Do not use nested loops / select statements.

b. Always use where in select query.

c. Select only required fields

d. Avoid Select – Endselect instead use Into table

e. Modularize the code.

f. Avoid using move corresponding

g. Always check for sy-subrc before sorting, read, select statements and where ever necessary.

h. Perform code inspector check


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