ABAP Select data from SAP table Q0937 into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

Below is a number of ABAP code snippets to demonstrate how to select data from SAP Q0937 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 Q0937. 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 Q0937 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_Q0937 TYPE STANDARD TABLE OF Q0937,
      WA_Q0937 TYPE Q0937,
      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: <Q0937> TYPE Q0937.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_Q0937.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM Q0937
  INTO TABLE IT_Q0937.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM Q0937
*  INTO TABLE @DATA(IT_Q09372).
*--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_Q0937 INDEX 1 INTO DATA(WA_Q09372).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_Q0937 ASSIGNING <Q0937>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<Q0937>-LOSCD = 1.
<Q0937>-LOSCM = 1.
<Q0937>-LOSCY = 1.
<Q0937>-LOSWD = 1.
<Q0937>-LOSWM = 1.

ENDLOOP.

LOOP AT IT_Q0937 INTO WA_Q0937.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_Q0937-LOSWY, sy-vline,
  WA_Q0937-INSWD, sy-vline,
  WA_Q0937-INSWM, sy-vline,
  WA_Q0937-INSWY, sy-vline,
  WA_Q0937-LOSCC, sy-vline,
  WA_Q0937-ACTTX, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_Q0937 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_Q0937 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_Q0937 INTO WA_Q0937.


*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_Q0937_STR, 
LOSCD TYPE STRING,
LOSCM TYPE STRING,
LOSCY TYPE STRING,
LOSWD TYPE STRING,
LOSWM TYPE STRING,
LOSWY TYPE STRING,
INSWD TYPE STRING,
INSWM TYPE STRING,
INSWY TYPE STRING,
LOSCC TYPE STRING,
ACTTX TYPE STRING,
PROTX TYPE STRING,
LOSAD TYPE STRING,
LOSAM TYPE STRING,
LOSAY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_Q0937_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_Q0937_STR-LOSCD sy-vline 
WA_Q0937_STR-LOSCM sy-vline 
WA_Q0937_STR-LOSCY sy-vline 
WA_Q0937_STR-LOSWD sy-vline 
WA_Q0937_STR-LOSWM sy-vline 
WA_Q0937_STR-LOSWY sy-vline 
WA_Q0937_STR-INSWD sy-vline 
WA_Q0937_STR-INSWM sy-vline 
WA_Q0937_STR-INSWY sy-vline 
WA_Q0937_STR-LOSCC sy-vline 
WA_Q0937_STR-ACTTX sy-vline 
WA_Q0937_STR-PROTX sy-vline 
WA_Q0937_STR-LOSAD sy-vline 
WA_Q0937_STR-LOSAM sy-vline 
WA_Q0937_STR-LOSAY sy-vline      INTO ld_text SEPARATED BY SPACE.

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