Dynamic select-statement with ranges

Question

Good morning experts,
I just wanted to know if this is possible:
I had a report with a selection-screen where I can enter a table-name and one ore more filed-names (separated by ;).
After that, I create a table like my entered (for example MARA)
CREATE DATA gt_table TYPE TABLE OF (p_tab).
ASSIGN gt_table->* TO <gt_table>.
Then I split my entered fields (at and for each filed I made a selection (with function COMPLEX_SELECTIONS_DIALOG).
Result of this is for each field a range-tab which I write in a new table - first column is the name of the field, second column is a range-tab:
TYPES: BEGIN OF t_ranges,
          sign TYPE tkeppllevs-sign,
          opt  TYPE tkeppllevs-opt,
          low  TYPE rsdslow,
          high TYPE rsdslow,
        END OF t_ranges.
DATA: BEGIN OF gs_conditions,
        fieldname TYPE string,
        ranges    TYPE TABLE OF t_ranges.
DATA: END OF gs_conditions.
DATA: gt_conditions LIKE TABLE OF gs_conditions.
Now I want to make a select on the entered table (MARA).
So I make a loop on my gt_conditions:
LOOP AT gt_conditions INTO gs_conditions.
  l_index = sy-tabix.
CONCATENATE 'gt_conditions[' l_index ']-ranges' INTO l_condition.
  CONDENSE l_condition NO-GAPS.
  CONCATENATE gs_conditions-fieldname 'IN' l_condition INTO lt_condition SEPARATED BY space.
  IF sy-tabix > 1.
    CONCATENATE 'AND' lt_condition INTO lt_condition SEPARATED BY space.
  ENDIF.
  APPEND lt_condition.
ENDLOOP.
If I look at it after the loop, it looks correct:
MATNR IN gt_conditions[1]-ranges
AND ERSDA IN gt_conditions[2]-ranges
But this wont work because of "gt_conditions[1]-ranges". I know, i can work with the "table in table", because gs_conditions-ranges works (I already tested this).
Has anybody any idea how to make my idea work?

Answer 1

@Hymavathi:
Error is the following:
An exception occurred that is explained in detail below.
The exception, which is assigned to class 'CX_SY_DYNAMIC_OSQL_SEMANTICS', was
not caught and
therefore caused a runtime error.
The reason for the exception is:
The current ABAP program has tried to execute an Open SQL statement
which contains a WHERE, ON or HAVING condition with a dynamic part.
The part of the WHERE, ON or HAVING condition specified at runtime in
a field or an internal table, contains the invalid value
"GT_CONDITIONS[1]-RANGES".
@Hymavathi, second time:
This is the whole code for the select:
LOOP AT gt_conditions INTO gs_conditions.
  l_index = sy-tabix.
  CONCATENATE 'gt_conditions[' l_index ']-ranges' INTO l_condition.
  CONDENSE l_condition NO-GAPS.
  CONCATENATE gs_conditions-fieldname 'IN' l_condition INTO lt_condition SEPARATED BY space.
  IF sy-tabix > 1.
    CONCATENATE 'AND' lt_condition INTO lt_condition SEPARATED BY space.
  ENDIF.
  APPEND lt_condition.
ENDLOOP.
SELECT * FROM (p_tab)
   INTO TABLE <gt_table>
        WHERE (lt_condition).
You can see, the select is after the loop. So gs_conditions-ranges wouldn't be right, then the where statement would only use the last range-tab from my table gt_conditions. (loop at...endloop => gs-conditions-range = last gt_conditions-range).