dynamic where condition on a loop

[Former Member]

Hello,

I need to do a dynamic where condition on a loop for example:

DATA dyn_cond TYPE STRING.

dyn_cond = 'field = 123'.

LOOP AT itab WHERE dyn_cond.
...
ENDLOOP.

The compiler throw me a compiler error.

Thanks for your help.

[Former Member]

DATA dyn_cond TYPE STRING.
 
dyn_cond = 'field = 123'.
 
LOOP AT itab WHERE ( dyn_cond ).
...
ENDLOOP.

Greetings,

Blag.

[Former Member]

I don't think you can use dynamic WHEREs in a LOOP AT statement. But you can use ranges and fill them dynamically.

Rob

[ThomasZloch]

as said, not possible for LOOP, only for SELECT.

So dump your internal table contents into a Z-table and do a SELECT

But seriously, other than dynamically generating a temporary program I don't see a way to do this.

Greetings

Thomas

[former_member194669]

This is what i get F1 on LOOP

Addition 3

... WHERE log_exp

Effect

WHERE can be specified with all table-types. After WHERE, you can specify any logical expression log_exp in which the first operand of any singular comparison is a component of the internal table. For this reason, all logical expressions are possible except for IS ASSIGNED, IS REQUESTED and IS SUPPLIED. Dynamic specification of a component through bracketed character-type data objects is not possible Loops at sorted tables must have compatible operands of the logical expression. All rows are read for which the logical expression is true.

a®

[Former Member]

O.K.

But what is correct solution for this.

Best Regars.

[Former Member]

O.K.

But what is correct solution for this?

Best Regars.

[Former Member]

Check my earlier response - you can use ranges.

Rob

[ThomasZloch]

however with ranges, you can only prepare the check values dynamically, but not the fields to be checked.

My answer to the OP is: there is no way to do this, except the very last and complex alternative, generate ABAP code on the fly and executing that.

[Former Member]

Well - you would have to set up ranges for all fields that might be checked. This wouldn't be a lot different that setting up a dynamic WHERE.

Rob