ABAPWHILE_VARY - WHILE VARY

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WHILE, VARY

Short Reference

WHILE ... VARY dobj FROM dobj1 NEXT dobj2 $[RANGE range$]
         $[VARY ...$].
  $[statement_block$]
ENDWHILE.

Effect

The addition VARY and its addition RANGE have exactly the same effect on a WHILE loop as the other obsolete additions VARYING and RANGE of the statement DO. The addition VARY can be used more than once in a WHILE statement.

Notes

• The way the addition VARY works depends on the internal structure of the working memory, which itself can be affected by alignment gaps.

• Instead of the addition VARY, the statement ASSIGN should be used in the loop with the addition INCREMENT.
  
  

Exceptions

Non-Catchable Exceptions

• Cause: Invalid access to tables, strings, field references, or object references within the range specified by the addition RANGE.
  Runtime Error: DO_WHILE_VARY_ILLEGAL_ACCESS

• Cause: Access to data outside the range specified by the RANGE addition.
  Runtime Error: DO_WHILE_VARY_NOT_IN_RANGE
  
  

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