ABAP Select data from SAP table Q0041 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP Q0041 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 Q0041. 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 Q0041 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_Q0041 TYPE STANDARD TABLE OF Q0041,
      WA_Q0041 TYPE Q0041,
      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: <Q0041> TYPE Q0041.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_Q0041.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM Q0041
  INTO TABLE IT_Q0041.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM Q0041
*  INTO TABLE @DATA(IT_Q00412).
*--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_Q0041 INDEX 1 INTO DATA(WA_Q00412).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_Q0041 ASSIGNING <Q0041>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<Q0041>-TXT01 = 1.
<Q0041>-TXT02 = 1.
<Q0041>-TXT03 = 1.
<Q0041>-TXT04 = 1.
<Q0041>-TXT05 = 1.

ENDLOOP.

LOOP AT IT_Q0041 INTO WA_Q0041.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_Q0041-TXT06, sy-vline,
  WA_Q0041-TXT07, sy-vline,
  WA_Q0041-TXT08, sy-vline,
  WA_Q0041-TXT09, sy-vline,
  WA_Q0041-TXT10, sy-vline,
  WA_Q0041-TXT11, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_Q0041 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_Q0041 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_Q0041 INTO WA_Q0041.


*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_Q0041_STR, 
TXT01 TYPE STRING,
TXT02 TYPE STRING,
TXT03 TYPE STRING,
TXT04 TYPE STRING,
TXT05 TYPE STRING,
TXT06 TYPE STRING,
TXT07 TYPE STRING,
TXT08 TYPE STRING,
TXT09 TYPE STRING,
TXT10 TYPE STRING,
TXT11 TYPE STRING,
TXT12 TYPE STRING,
TXT13 TYPE STRING,
TXT14 TYPE STRING,
TXT15 TYPE STRING,
TXT16 TYPE STRING,
TXT17 TYPE STRING,
TXT18 TYPE STRING,
TXT19 TYPE STRING,
TXT20 TYPE STRING,
TXT21 TYPE STRING,
TXT22 TYPE STRING,
TXT23 TYPE STRING,
TXT24 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_Q0041_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_Q0041_STR-TXT01 sy-vline 
WA_Q0041_STR-TXT02 sy-vline 
WA_Q0041_STR-TXT03 sy-vline 
WA_Q0041_STR-TXT04 sy-vline 
WA_Q0041_STR-TXT05 sy-vline 
WA_Q0041_STR-TXT06 sy-vline 
WA_Q0041_STR-TXT07 sy-vline 
WA_Q0041_STR-TXT08 sy-vline 
WA_Q0041_STR-TXT09 sy-vline 
WA_Q0041_STR-TXT10 sy-vline 
WA_Q0041_STR-TXT11 sy-vline 
WA_Q0041_STR-TXT12 sy-vline 
WA_Q0041_STR-TXT13 sy-vline 
WA_Q0041_STR-TXT14 sy-vline 
WA_Q0041_STR-TXT15 sy-vline 
WA_Q0041_STR-TXT16 sy-vline 
WA_Q0041_STR-TXT17 sy-vline 
WA_Q0041_STR-TXT18 sy-vline 
WA_Q0041_STR-TXT19 sy-vline 
WA_Q0041_STR-TXT20 sy-vline 
WA_Q0041_STR-TXT21 sy-vline 
WA_Q0041_STR-TXT22 sy-vline 
WA_Q0041_STR-TXT23 sy-vline 
WA_Q0041_STR-TXT24 sy-vline      INTO ld_text SEPARATED BY SPACE.

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