ABAP Select data from SAP table T7QA41 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP T7QA41 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 T7QA41. 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 T7QA41 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_T7QA41 TYPE STANDARD TABLE OF T7QA41,
      WA_T7QA41 TYPE T7QA41,
      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: <T7QA41> TYPE T7QA41.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_T7QA41.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM T7QA41
  INTO TABLE IT_T7QA41.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM T7QA41
*  INTO TABLE @DATA(IT_T7QA412).
*--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_T7QA41 INDEX 1 INTO DATA(WA_T7QA412).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_T7QA41 ASSIGNING <T7QA41>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<T7QA41>-MANDT = 1.
<T7QA41>-LOGRP = 1.
<T7QA41>-DLART = 1.
<T7QA41>-ENDDA = 1.
<T7QA41>-BEGDA = 1.

ENDLOOP.

LOOP AT IT_T7QA41 INTO WA_T7QA41.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_T7QA41-ELIGR, sy-vline,
  WA_T7QA41-LMVAL, sy-vline,
  WA_T7QA41-WAERS, sy-vline,
  WA_T7QA41-MUTIL, sy-vline,
  WA_T7QA41-MAXTM, sy-vline,
  WA_T7QA41-LNUPR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_T7QA41 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_T7QA41 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_T7QA41 INTO WA_T7QA41.


*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_T7QA41_STR, 
MANDT TYPE STRING,
LOGRP TYPE STRING,
DLART TYPE STRING,
ENDDA TYPE STRING,
BEGDA TYPE STRING,
ELIGR TYPE STRING,
LMVAL TYPE STRING,
WAERS TYPE STRING,
MUTIL TYPE STRING,
MAXTM TYPE STRING,
LNUPR TYPE STRING,
LNUPU TYPE STRING,
NMCMD TYPE STRING,
LTORR TYPE STRING,
LCUPR TYPE STRING,
LCUPU TYPE STRING,
CMCMD TYPE STRING,
ADVTM TYPE STRING,
PRADV TYPE STRING,
MAXBT TYPE STRING,
MAXWR TYPE STRING,
MINBT TYPE STRING,
MINWR TYPE STRING,
MNIST TYPE STRING,
MXIST TYPE STRING,
ISTEL TYPE STRING,
ISTWR TYPE STRING,
ISTDA TYPE STRING,
ISTDR TYPE STRING,
DKOND TYPE STRING,
FMELG TYPE STRING,
FMTKN TYPE STRING,
FMOTS TYPE STRING,
FMINT TYPE STRING,
FMDFT TYPE STRING,
FMADV TYPE STRING,
FMIST TYPE STRING,
LBIST TYPE STRING,END OF T_EKKO_STR.
DATA: WA_T7QA41_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_T7QA41_STR-MANDT sy-vline 
WA_T7QA41_STR-LOGRP sy-vline 
WA_T7QA41_STR-DLART sy-vline 
WA_T7QA41_STR-ENDDA sy-vline 
WA_T7QA41_STR-BEGDA sy-vline 
WA_T7QA41_STR-ELIGR sy-vline 
WA_T7QA41_STR-LMVAL sy-vline 
WA_T7QA41_STR-WAERS sy-vline 
WA_T7QA41_STR-MUTIL sy-vline 
WA_T7QA41_STR-MAXTM sy-vline 
WA_T7QA41_STR-LNUPR sy-vline 
WA_T7QA41_STR-LNUPU sy-vline 
WA_T7QA41_STR-NMCMD sy-vline 
WA_T7QA41_STR-LTORR sy-vline 
WA_T7QA41_STR-LCUPR sy-vline 
WA_T7QA41_STR-LCUPU sy-vline 
WA_T7QA41_STR-CMCMD sy-vline 
WA_T7QA41_STR-ADVTM sy-vline 
WA_T7QA41_STR-PRADV sy-vline 
WA_T7QA41_STR-MAXBT sy-vline 
WA_T7QA41_STR-MAXWR sy-vline 
WA_T7QA41_STR-MINBT sy-vline 
WA_T7QA41_STR-MINWR sy-vline 
WA_T7QA41_STR-MNIST sy-vline 
WA_T7QA41_STR-MXIST sy-vline 
WA_T7QA41_STR-ISTEL sy-vline 
WA_T7QA41_STR-ISTWR sy-vline 
WA_T7QA41_STR-ISTDA sy-vline 
WA_T7QA41_STR-ISTDR sy-vline 
WA_T7QA41_STR-DKOND sy-vline 
WA_T7QA41_STR-FMELG sy-vline 
WA_T7QA41_STR-FMTKN sy-vline 
WA_T7QA41_STR-FMOTS sy-vline 
WA_T7QA41_STR-FMINT sy-vline 
WA_T7QA41_STR-FMDFT sy-vline 
WA_T7QA41_STR-FMADV sy-vline 
WA_T7QA41_STR-FMIST sy-vline 
WA_T7QA41_STR-LBIST sy-vline      INTO ld_text SEPARATED BY SPACE.

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