ABAP Select data from SAP table MBQSSK into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP MBQSSK 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 MBQSSK. 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 MBQSSK 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_MBQSSK TYPE STANDARD TABLE OF MBQSSK,
      WA_MBQSSK TYPE MBQSSK,
      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: <MBQSSK> TYPE MBQSSK.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MBQSSK
*  INTO TABLE @DATA(IT_MBQSSK2).
*--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_MBQSSK INDEX 1 INTO DATA(WA_MBQSSK2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<MBQSSK>-CO_KAKST = 1.
<MBQSSK>-CO_KAAUF = 1.
<MBQSSK>-CO_KAPRO = 1.
<MBQSSK>-CO_KAKTR = 1.
<MBQSSK>-CO_KANPL = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MBQSSK-CO_KAIMO, sy-vline,
  WA_MBQSSK-CO_KAKDA, sy-vline,
  WA_MBQSSK-CO_KAERG, sy-vline,
  WA_MBQSSK-CO_KAABS, sy-vline,
  WA_MBQSSK-CO_KAPRZ, sy-vline,
  WA_MBQSSK-CO_KASVD, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_MBQSSK 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_MBQSSK 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_MBQSSK INTO WA_MBQSSK.


*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.

*Conversion exit ALPHA, internal->external for field KOSTL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MBQSSK-KOSTL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MBQSSK-KOSTL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AUFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MBQSSK-AUFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MBQSSK-AUFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ABPSP, internal->external for field PS_PSP_PNR
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_MBQSSK-PS_PSP_PNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MBQSSK-PS_PSP_PNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field NPLNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MBQSSK-NPLNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MBQSSK-NPLNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KDAUF
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MBQSSK-KDAUF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MBQSSK-KDAUF.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ANLN1
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MBQSSK-ANLN1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MBQSSK-ANLN1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ANLN2
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MBQSSK-ANLN2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MBQSSK-ANLN2.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

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

TYPES: BEGIN OF T_MBQSSK_STR, 
CO_KAKST TYPE STRING,
CO_KAAUF TYPE STRING,
CO_KAPRO TYPE STRING,
CO_KAKTR TYPE STRING,
CO_KANPL TYPE STRING,
CO_KAIMO TYPE STRING,
CO_KAKDA TYPE STRING,
CO_KAERG TYPE STRING,
CO_KAABS TYPE STRING,
CO_KAPRZ TYPE STRING,
CO_KASVD TYPE STRING,
CO_KASAT TYPE STRING,
BURKS TYPE STRING,
KOKRS TYPE STRING,
KOSTL TYPE STRING,
AUFNR TYPE STRING,
PS_PSP_PNR TYPE STRING,
NPLNR TYPE STRING,
APLZL TYPE STRING,
KDAUF TYPE STRING,
KDPOS TYPE STRING,
PAOBJNR TYPE STRING,
ANLN1 TYPE STRING,
ANLN2 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_MBQSSK_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_MBQSSK_STR-CO_KAKST sy-vline 
WA_MBQSSK_STR-CO_KAAUF sy-vline 
WA_MBQSSK_STR-CO_KAPRO sy-vline 
WA_MBQSSK_STR-CO_KAKTR sy-vline 
WA_MBQSSK_STR-CO_KANPL sy-vline 
WA_MBQSSK_STR-CO_KAIMO sy-vline 
WA_MBQSSK_STR-CO_KAKDA sy-vline 
WA_MBQSSK_STR-CO_KAERG sy-vline 
WA_MBQSSK_STR-CO_KAABS sy-vline 
WA_MBQSSK_STR-CO_KAPRZ sy-vline 
WA_MBQSSK_STR-CO_KASVD sy-vline 
WA_MBQSSK_STR-CO_KASAT sy-vline 
WA_MBQSSK_STR-BURKS sy-vline 
WA_MBQSSK_STR-KOKRS sy-vline 
WA_MBQSSK_STR-KOSTL sy-vline 
WA_MBQSSK_STR-AUFNR sy-vline 
WA_MBQSSK_STR-PS_PSP_PNR sy-vline 
WA_MBQSSK_STR-NPLNR sy-vline 
WA_MBQSSK_STR-APLZL sy-vline 
WA_MBQSSK_STR-KDAUF sy-vline 
WA_MBQSSK_STR-KDPOS sy-vline 
WA_MBQSSK_STR-PAOBJNR sy-vline 
WA_MBQSSK_STR-ANLN1 sy-vline 
WA_MBQSSK_STR-ANLN2 sy-vline      INTO ld_text SEPARATED BY SPACE.

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