Video Lesson 4.10: ABAP Loops

This lesson shows how to create loops in ABAP to iterate through a process.

Loops

In a loop, a statement block is executed several times in succession. There are four kinds of loops in ABAP:

• Unconditional loops using the DO statement.
• Conditional loops using the WHILE statement.
• Loops through internal tables and extract data sets using the LOOP statement.
• Loops through datasets from database tables using the SELECT statement.

Unconditional Loops

• To process a statement block several times unconditionally, use the following control structure:
• DO [n TIMES] ...
    [statement_block]
  ENDDO.
• Use the TIMES addition to restrict the number of loop passes to n.
• If you do not specify any additions, the statement block is repeated until it reaches a termination statement such as EXIT or STOP.