ABAP Select data from SAP table Q0012 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP Q0012 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 Q0012. 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 Q0012 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_Q0012 TYPE STANDARD TABLE OF Q0012,
      WA_Q0012 TYPE Q0012,
      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: <Q0012> TYPE Q0012.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_Q0012.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM Q0012
  INTO TABLE IT_Q0012.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM Q0012
*  INTO TABLE @DATA(IT_Q00122).
*--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_Q0012 INDEX 1 INTO DATA(WA_Q00122).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_Q0012 ASSIGNING <Q0012>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<Q0012>-KISTA = 1.
<Q0012>-KISTE = 1.
<Q0012>-STPFL = 1.
<Q0012>-STFRG = 1.
<Q0012>-STBFG = 1.

ENDLOOP.

LOOP AT IT_Q0012 INTO WA_Q0012.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_Q0012-STRSO, sy-vline,
  WA_Q0012-STRS2, sy-vline,
  WA_Q0012-VFREI, sy-vline,
  WA_Q0012-PRMNZ, sy-vline,
  WA_Q0012-WAE01, sy-vline,
  WA_Q0012-WAE02, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_Q0012 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_Q0012 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_Q0012 INTO WA_Q0012.


*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_Q0012_STR, 
KISTA TYPE STRING,
KISTE TYPE STRING,
STPFL TYPE STRING,
STFRG TYPE STRING,
STBFG TYPE STRING,
STRSO TYPE STRING,
STRS2 TYPE STRING,
VFREI TYPE STRING,
PRMNZ TYPE STRING,
WAE01 TYPE STRING,
WAE02 TYPE STRING,
WAE03 TYPE STRING,
WAE04 TYPE STRING,
FRB2M TYPE STRING,
FRB2J TYPE STRING,
HINZM TYPE STRING,
HINZJ TYPE STRING,
WAE05 TYPE STRING,
WAE06 TYPE STRING,
KETIN TYPE STRING,
VFBPS TYPE STRING,
VFBHB TYPE STRING,
VFBZS TYPE STRING,
AEBEJ TYPE STRING,
AEBPS TYPE STRING,
AEBHB TYPE STRING,
WAE07 TYPE STRING,
WAE08 TYPE STRING,
WAE09 TYPE STRING,
WAE10 TYPE STRING,
WAE11 TYPE STRING,
VFBP2 TYPE STRING,
VFBH2 TYPE STRING,
VFBZ2 TYPE STRING,
WAE12 TYPE STRING,
WAE13 TYPE STRING,
WAE14 TYPE STRING,
WAE15 TYPE STRING,
VFBP3 TYPE STRING,
VFBH3 TYPE STRING,
VFBZ3 TYPE STRING,
WAE16 TYPE STRING,
WAE17 TYPE STRING,
WAE18 TYPE STRING,
WAE19 TYPE STRING,
VFBP4 TYPE STRING,
VFBH4 TYPE STRING,
VFBZ4 TYPE STRING,
WAE20 TYPE STRING,
WAE21 TYPE STRING,
WAE22 TYPE STRING,
WAE23 TYPE STRING,
VFBP5 TYPE STRING,
VFBH5 TYPE STRING,
VFBZ5 TYPE STRING,
WAE24 TYPE STRING,
WAE25 TYPE STRING,
WAE26 TYPE STRING,
WAE27 TYPE STRING,
LGVBZ TYPE STRING,
LGVB2 TYPE STRING,
LGVB3 TYPE STRING,
LGVB4 TYPE STRING,
LGVB5 TYPE STRING,
WAE28 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_Q0012_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_Q0012_STR-KISTA sy-vline 
WA_Q0012_STR-KISTE sy-vline 
WA_Q0012_STR-STPFL sy-vline 
WA_Q0012_STR-STFRG sy-vline 
WA_Q0012_STR-STBFG sy-vline 
WA_Q0012_STR-STRSO sy-vline 
WA_Q0012_STR-STRS2 sy-vline 
WA_Q0012_STR-VFREI sy-vline 
WA_Q0012_STR-PRMNZ sy-vline 
WA_Q0012_STR-WAE01 sy-vline 
WA_Q0012_STR-WAE02 sy-vline 
WA_Q0012_STR-WAE03 sy-vline 
WA_Q0012_STR-WAE04 sy-vline 
WA_Q0012_STR-FRB2M sy-vline 
WA_Q0012_STR-FRB2J sy-vline 
WA_Q0012_STR-HINZM sy-vline 
WA_Q0012_STR-HINZJ sy-vline 
WA_Q0012_STR-WAE05 sy-vline 
WA_Q0012_STR-WAE06 sy-vline 
WA_Q0012_STR-KETIN sy-vline 
WA_Q0012_STR-VFBPS sy-vline 
WA_Q0012_STR-VFBHB sy-vline 
WA_Q0012_STR-VFBZS sy-vline 
WA_Q0012_STR-AEBEJ sy-vline 
WA_Q0012_STR-AEBPS sy-vline 
WA_Q0012_STR-AEBHB sy-vline 
WA_Q0012_STR-WAE07 sy-vline 
WA_Q0012_STR-WAE08 sy-vline 
WA_Q0012_STR-WAE09 sy-vline 
WA_Q0012_STR-WAE10 sy-vline 
WA_Q0012_STR-WAE11 sy-vline 
WA_Q0012_STR-VFBP2 sy-vline 
WA_Q0012_STR-VFBH2 sy-vline 
WA_Q0012_STR-VFBZ2 sy-vline 
WA_Q0012_STR-WAE12 sy-vline 
WA_Q0012_STR-WAE13 sy-vline 
WA_Q0012_STR-WAE14 sy-vline 
WA_Q0012_STR-WAE15 sy-vline 
WA_Q0012_STR-VFBP3 sy-vline 
WA_Q0012_STR-VFBH3 sy-vline 
WA_Q0012_STR-VFBZ3 sy-vline 
WA_Q0012_STR-WAE16 sy-vline 
WA_Q0012_STR-WAE17 sy-vline 
WA_Q0012_STR-WAE18 sy-vline 
WA_Q0012_STR-WAE19 sy-vline 
WA_Q0012_STR-VFBP4 sy-vline 
WA_Q0012_STR-VFBH4 sy-vline 
WA_Q0012_STR-VFBZ4 sy-vline 
WA_Q0012_STR-WAE20 sy-vline 
WA_Q0012_STR-WAE21 sy-vline 
WA_Q0012_STR-WAE22 sy-vline 
WA_Q0012_STR-WAE23 sy-vline 
WA_Q0012_STR-VFBP5 sy-vline 
WA_Q0012_STR-VFBH5 sy-vline 
WA_Q0012_STR-VFBZ5 sy-vline 
WA_Q0012_STR-WAE24 sy-vline 
WA_Q0012_STR-WAE25 sy-vline 
WA_Q0012_STR-WAE26 sy-vline 
WA_Q0012_STR-WAE27 sy-vline 
WA_Q0012_STR-LGVBZ sy-vline 
WA_Q0012_STR-LGVB2 sy-vline 
WA_Q0012_STR-LGVB3 sy-vline 
WA_Q0012_STR-LGVB4 sy-vline 
WA_Q0012_STR-LGVB5 sy-vline 
WA_Q0012_STR-WAE28 sy-vline      INTO ld_text SEPARATED BY SPACE.

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