ABAP Select data from SAP table Q0531 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP Q0531 table and store it within an internal table, including using the newer @DATA inline declaration methods. It also shows you various ways to process this data using ABAP work area, inline declaration or field symbols including executing all the relevant CONVERSION_EXIT routines specific to Q0531. See here for more generic Select statement tips.

Sometimes data within SAP is stored within the database table in a different format to what it is displayed to the user. These input/output conversation FM routines are what translates the data between the two formats.

There is also a full declaration of the Q0531 table where each field has a char/string type for you to simply copy and paste. This allows you to use processing that is only available to these field types such as the CONCATENATE statement.

DATA: IT_Q0531 TYPE STANDARD TABLE OF Q0531,
      WA_Q0531 TYPE Q0531,
      GD_STR TYPE STRING.

DATA: lo_typedescr type REF TO cl_abap_typedescr.
DATA: lv_fieldname type fieldname.

FIELD-SYMBOLS: <FIELD> TYPE any.
FIELD-SYMBOLS: <Q0531> TYPE Q0531.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_Q0531.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM Q0531
  INTO TABLE IT_Q0531.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM Q0531
*  INTO TABLE @DATA(IT_Q05312).
*--Further methods of using ABAP code to  select data from SAP database tables

*You can also declare the header/work area using the in-line DATA declaration method
READ TABLE IT_Q0531 INDEX 1 INTO DATA(WA_Q05312).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_Q0531 ASSIGNING <Q0531>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<Q0531>-TRRUL = 1.
<Q0531>-REAMT = 1.
<Q0531>-RACUR = 1.
<Q0531>-REPER = 1.
<Q0531>-MONHL = 1.

ENDLOOP.

LOOP AT IT_Q0531 INTO WA_Q0531.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_Q0531-MHCUR, sy-vline,
  WA_Q0531-YERHL, sy-vline,
  WA_Q0531-YHCUR, sy-vline,
  WA_Q0531-INCHL, sy-vline,
  WA_Q0531-INCUR, sy-vline,
  WA_Q0531-INMBS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_Q0531 you want to display...

  WRITE:/ sy-uline.
* Aternatively use generic code to Write field values (and NAME) to screen report
  DO.
    ASSIGN COMPONENT sy-index OF STRUCTURE wa_Q0531 TO <field>.
    IF sy-subrc <> 0. EXIT. ENDIF.
    WRITE:/ 'Field Value', <field>, sy-vline.
    gd_str = <field> .
    lo_typedescr ?= CL_ABAP_DATADESCR=>DESCRIBE_BY_DATA( <field> ).
    lv_fieldname = lo_typedescr->GET_RELATIVE_NAME( ).
    WRITE:/ 'Field Name', lv_fieldname.
  ENDDO.

  
*Redo loop but convert all fields from internal to out value  
LOOP AT IT_Q0531 INTO WA_Q0531.


*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Convert all fields to display/output versions using conversion routines
  PERFORM convert_all_field_values CHANGING wa_EKKO.
	 
ENDLOOP.

  
*&---------------------------------------------------------------------*
*& Form convert_all_field_values
*&---------------------------------------------------------------------*
FORM convert_all_field_values CHANGING p_EKKO LIKE wa_EKKO.
DATA: ld_input(1000) TYPE c, ld_output(1000) TYPE C.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_Q0531_STR, 
TRRUL TYPE STRING,
REAMT TYPE STRING,
RACUR TYPE STRING,
REPER TYPE STRING,
MONHL TYPE STRING,
MHCUR TYPE STRING,
YERHL TYPE STRING,
YHCUR TYPE STRING,
INCHL TYPE STRING,
INCUR TYPE STRING,
INMBS TYPE STRING,
INYEB TYPE STRING,
INRCP TYPE STRING,
INSPM TYPE STRING,
INERS TYPE STRING,
INSTO TYPE STRING,
YSHID TYPE STRING,
NTHID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_Q0531_STR type T_EKKO_STR.

DATA: ld_text TYPE string.

LOOP AT IT_EKKO INTO WA_EKKO.
  MOVE-CORRESPONDING wa_EKKO TO WA_EKKO_STR.
  CONCATENATE: sy-vline
WA_Q0531_STR-TRRUL sy-vline 
WA_Q0531_STR-REAMT sy-vline 
WA_Q0531_STR-RACUR sy-vline 
WA_Q0531_STR-REPER sy-vline 
WA_Q0531_STR-MONHL sy-vline 
WA_Q0531_STR-MHCUR sy-vline 
WA_Q0531_STR-YERHL sy-vline 
WA_Q0531_STR-YHCUR sy-vline 
WA_Q0531_STR-INCHL sy-vline 
WA_Q0531_STR-INCUR sy-vline 
WA_Q0531_STR-INMBS sy-vline 
WA_Q0531_STR-INYEB sy-vline 
WA_Q0531_STR-INRCP sy-vline 
WA_Q0531_STR-INSPM sy-vline 
WA_Q0531_STR-INERS sy-vline 
WA_Q0531_STR-INSTO sy-vline 
WA_Q0531_STR-YSHID sy-vline 
WA_Q0531_STR-NTHID sy-vline      INTO ld_text SEPARATED BY SPACE.

*Add any further fields from structure WA_EKKO_STR you want to CONCATENATE...
ENDLOOP.
ENDFORM.