ABAP Select data from SAP table QSAMPTAB 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 QSAMPTAB 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 QSAMPTAB. 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 QSAMPTAB 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_QSAMPTAB TYPE STANDARD TABLE OF QSAMPTAB,
      WA_QSAMPTAB TYPE QSAMPTAB,
      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: <QSAMPTAB> TYPE QSAMPTAB.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM QSAMPTAB
*  INTO TABLE @DATA(IT_QSAMPTAB2).
*--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_QSAMPTAB INDEX 1 INTO DATA(WA_QSAMPTAB2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<QSAMPTAB>-PRUEFLOS = 1.
<QSAMPTAB>-VORGLFNR = 1.
<QSAMPTAB>-VORNR = 1.
<QSAMPTAB>-PRPLATZ = 1.
<QSAMPTAB>-PRPLATZWRK = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_QSAMPTAB-PRPLATZTXT, sy-vline,
  WA_QSAMPTAB-PHYSPROBE, sy-vline,
  WA_QSAMPTAB-BPRUEFUMF, sy-vline,
  WA_QSAMPTAB-BMENGENEH, sy-vline,
  WA_QSAMPTAB-PPRUEFUMF, sy-vline,
  WA_QSAMPTAB-PMENGENEH, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_QSAMPTAB 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_QSAMPTAB 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_QSAMPTAB INTO WA_QSAMPTAB.


*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 PRUEFLOS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_QSAMPTAB-PRUEFLOS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_QSAMPTAB-PRUEFLOS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit NUMCV, internal->external for field VORNR
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_QSAMPTAB-VORNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_QSAMPTAB-VORNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field BMENGENEH
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_QSAMPTAB-BMENGENEH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_QSAMPTAB-BMENGENEH.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field PMENGENEH
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_QSAMPTAB-PMENGENEH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_QSAMPTAB-PMENGENEH.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit CUNIT, internal->external for field LOSGEBEH
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_QSAMPTAB-LOSGEBEH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_QSAMPTAB-LOSGEBEH.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MERUECKL
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_QSAMPTAB-MERUECKL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_QSAMPTAB-MERUECKL.
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_QSAMPTAB_STR, 
PRUEFLOS TYPE STRING,
VORGLFNR TYPE STRING,
VORNR TYPE STRING,
PRPLATZ TYPE STRING,
PRPLATZWRK TYPE STRING,
PRPLATZTXT TYPE STRING,
PHYSPROBE TYPE STRING,
BPRUEFUMF TYPE STRING,
BMENGENEH TYPE STRING,
PPRUEFUMF TYPE STRING,
PMENGENEH TYPE STRING,
FAKPLANME TYPE STRING,
FAKPROBME TYPE STRING,
MANDT TYPE STRING,
PRZIEHVERF TYPE STRING,
VERSION TYPE STRING,
POSNRPRZV TYPE STRING,
LOSGEBEH TYPE STRING,
PROBNRPL TYPE STRING,
GEBINDE1 TYPE STRING,
STPRPLAN1 TYPE STRING,
PRSCHAERF1 TYPE STRING,
AQLWERT1 TYPE STRING,
PRANZ1 TYPE STRING,
FAKTORPR1 TYPE STRING,
FORMEL1 TYPE STRING,
GEBINDER TYPE STRING,
ANZRUECKL TYPE STRING,
UMFRUECKL TYPE STRING,
MERUECKL TYPE STRING,
GEBINDE2 TYPE STRING,
STPRPLAN2 TYPE STRING,
PRSCHAERF2 TYPE STRING,
AQLWERT2 TYPE STRING,
PRANZ2 TYPE STRING,
FAKTORPR2 TYPE STRING,
FORMEL2 TYPE STRING,
ERSTELLER TYPE STRING,
AENDERER TYPE STRING,
DATUMERST TYPE STRING,
ZEITERST TYPE STRING,
DATUMAEND TYPE STRING,
ZEITAEND TYPE STRING,
ANZENTPR TYPE STRING,
UMFENTPR TYPE STRING,
ANZMISCHPR TYPE STRING,
UMFMISCHPR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_QSAMPTAB_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_QSAMPTAB_STR-PRUEFLOS sy-vline 
WA_QSAMPTAB_STR-VORGLFNR sy-vline 
WA_QSAMPTAB_STR-VORNR sy-vline 
WA_QSAMPTAB_STR-PRPLATZ sy-vline 
WA_QSAMPTAB_STR-PRPLATZWRK sy-vline 
WA_QSAMPTAB_STR-PRPLATZTXT sy-vline 
WA_QSAMPTAB_STR-PHYSPROBE sy-vline 
WA_QSAMPTAB_STR-BPRUEFUMF sy-vline 
WA_QSAMPTAB_STR-BMENGENEH sy-vline 
WA_QSAMPTAB_STR-PPRUEFUMF sy-vline 
WA_QSAMPTAB_STR-PMENGENEH sy-vline 
WA_QSAMPTAB_STR-FAKPLANME sy-vline 
WA_QSAMPTAB_STR-FAKPROBME sy-vline 
WA_QSAMPTAB_STR-MANDT sy-vline 
WA_QSAMPTAB_STR-PRZIEHVERF sy-vline 
WA_QSAMPTAB_STR-VERSION sy-vline 
WA_QSAMPTAB_STR-POSNRPRZV sy-vline 
WA_QSAMPTAB_STR-LOSGEBEH sy-vline 
WA_QSAMPTAB_STR-PROBNRPL sy-vline 
WA_QSAMPTAB_STR-GEBINDE1 sy-vline 
WA_QSAMPTAB_STR-STPRPLAN1 sy-vline 
WA_QSAMPTAB_STR-PRSCHAERF1 sy-vline 
WA_QSAMPTAB_STR-AQLWERT1 sy-vline 
WA_QSAMPTAB_STR-PRANZ1 sy-vline 
WA_QSAMPTAB_STR-FAKTORPR1 sy-vline 
WA_QSAMPTAB_STR-FORMEL1 sy-vline 
WA_QSAMPTAB_STR-GEBINDER sy-vline 
WA_QSAMPTAB_STR-ANZRUECKL sy-vline 
WA_QSAMPTAB_STR-UMFRUECKL sy-vline 
WA_QSAMPTAB_STR-MERUECKL sy-vline 
WA_QSAMPTAB_STR-GEBINDE2 sy-vline 
WA_QSAMPTAB_STR-STPRPLAN2 sy-vline 
WA_QSAMPTAB_STR-PRSCHAERF2 sy-vline 
WA_QSAMPTAB_STR-AQLWERT2 sy-vline 
WA_QSAMPTAB_STR-PRANZ2 sy-vline 
WA_QSAMPTAB_STR-FAKTORPR2 sy-vline 
WA_QSAMPTAB_STR-FORMEL2 sy-vline 
WA_QSAMPTAB_STR-ERSTELLER sy-vline 
WA_QSAMPTAB_STR-AENDERER sy-vline 
WA_QSAMPTAB_STR-DATUMERST sy-vline 
WA_QSAMPTAB_STR-ZEITERST sy-vline 
WA_QSAMPTAB_STR-DATUMAEND sy-vline 
WA_QSAMPTAB_STR-ZEITAEND sy-vline 
WA_QSAMPTAB_STR-ANZENTPR sy-vline 
WA_QSAMPTAB_STR-UMFENTPR sy-vline 
WA_QSAMPTAB_STR-ANZMISCHPR sy-vline 
WA_QSAMPTAB_STR-UMFMISCHPR sy-vline      INTO ld_text SEPARATED BY SPACE.

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