ABAP Select data from SAP table GOCOBL1 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP GOCOBL1 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 GOCOBL1. 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 GOCOBL1 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_GOCOBL1 TYPE STANDARD TABLE OF GOCOBL1,
      WA_GOCOBL1 TYPE GOCOBL1,
      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: <GOCOBL1> TYPE GOCOBL1.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_GOCOBL1.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM GOCOBL1
  INTO TABLE IT_GOCOBL1.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM GOCOBL1
*  INTO TABLE @DATA(IT_GOCOBL12).
*--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_GOCOBL1 INDEX 1 INTO DATA(WA_GOCOBL12).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_GOCOBL1 ASSIGNING <GOCOBL1>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<GOCOBL1>-KOSTL = 1.
<GOCOBL1>-AUFNR = 1.
<GOCOBL1>-PS_PSP_PNR = 1.
<GOCOBL1>-KDAUF = 1.
<GOCOBL1>-KDPOS = 1.

ENDLOOP.

LOOP AT IT_GOCOBL1 INTO WA_GOCOBL1.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_GOCOBL1-KDEIN, sy-vline,
  WA_GOCOBL1-NPLNR, sy-vline,
  WA_GOCOBL1-VORNR, sy-vline,
  WA_GOCOBL1-FIPOS, sy-vline,
  WA_GOCOBL1-ANLN1, sy-vline,
  WA_GOCOBL1-ANLN2, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_GOCOBL1 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_GOCOBL1 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_GOCOBL1 INTO WA_GOCOBL1.


*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_GOCOBL1-KOSTL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GOCOBL1-KOSTL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AUFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_GOCOBL1-AUFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GOCOBL1-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_GOCOBL1-PS_PSP_PNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GOCOBL1-PS_PSP_PNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KDAUF
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_GOCOBL1-KDAUF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GOCOBL1-KDAUF.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field NPLNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_GOCOBL1-NPLNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GOCOBL1-NPLNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit NUMCV, internal->external for field VORNR
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_GOCOBL1-VORNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GOCOBL1-VORNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit FMCIS, internal->external for field FIPOS
CALL FUNCTION 'CONVERSION_EXIT_FMCIS_OUTPUT'
  EXPORTING
    input =                      WA_GOCOBL1-FIPOS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GOCOBL1-FIPOS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ANLN1
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_GOCOBL1-ANLN1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GOCOBL1-ANLN1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ANLN2
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_GOCOBL1-ANLN2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GOCOBL1-ANLN2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit IMKEY, internal->external for field IMKEY
CALL FUNCTION 'CONVERSION_EXIT_IMKEY_OUTPUT'
  EXPORTING
    input =                      WA_GOCOBL1-IMKEY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GOCOBL1-IMKEY.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PRZNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_GOCOBL1-PRZNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GOCOBL1-PRZNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PRCTR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_GOCOBL1-PRCTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GOCOBL1-PRCTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field GRANT_NBR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_GOCOBL1-GRANT_NBR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GOCOBL1-GRANT_NBR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KBLNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_GOCOBL1-KBLNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GOCOBL1-KBLNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VPTNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_GOCOBL1-VPTNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GOCOBL1-VPTNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field CONDI
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_GOCOBL1-CONDI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GOCOBL1-CONDI.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RECID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_GOCOBL1-RECID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GOCOBL1-RECID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SERVICE_DOC_ID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_GOCOBL1-SERVICE_DOC_ID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GOCOBL1-SERVICE_DOC_ID.
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_GOCOBL1_STR, 
KOSTL TYPE STRING,
AUFNR TYPE STRING,
PS_PSP_PNR TYPE STRING,
KDAUF TYPE STRING,
KDPOS TYPE STRING,
KDEIN TYPE STRING,
NPLNR TYPE STRING,
VORNR TYPE STRING,
FIPOS TYPE STRING,
ANLN1 TYPE STRING,
ANLN2 TYPE STRING,
PAOBJNR TYPE STRING,
IMKEY TYPE STRING,
GEBER TYPE STRING,
FISTL TYPE STRING,
FKBER TYPE STRING,
LSTAR TYPE STRING,
PRZNR TYPE STRING,
KSTRG TYPE STRING,
GSBER TYPE STRING,
PRCTR TYPE STRING,
BUKRS TYPE STRING,
GRANT_NBR TYPE STRING,
MEASURE TYPE STRING,
BUDGET_PD TYPE STRING,
DUMMY_INCL_EEW_COBL TYPE STRING,
KBLNR TYPE STRING,
KBLPOS TYPE STRING,
FMFGUS_KEY TYPE STRING,
VPTNR TYPE STRING,
CONDI TYPE STRING,
CRPCAL TYPE STRING,
RECID TYPE STRING,
BEMOT TYPE STRING,
SERVICE_DOC_TYPE TYPE STRING,
SERVICE_DOC_ID TYPE STRING,
SERVICE_DOC_ITEM_ID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_GOCOBL1_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_GOCOBL1_STR-KOSTL sy-vline 
WA_GOCOBL1_STR-AUFNR sy-vline 
WA_GOCOBL1_STR-PS_PSP_PNR sy-vline 
WA_GOCOBL1_STR-KDAUF sy-vline 
WA_GOCOBL1_STR-KDPOS sy-vline 
WA_GOCOBL1_STR-KDEIN sy-vline 
WA_GOCOBL1_STR-NPLNR sy-vline 
WA_GOCOBL1_STR-VORNR sy-vline 
WA_GOCOBL1_STR-FIPOS sy-vline 
WA_GOCOBL1_STR-ANLN1 sy-vline 
WA_GOCOBL1_STR-ANLN2 sy-vline 
WA_GOCOBL1_STR-PAOBJNR sy-vline 
WA_GOCOBL1_STR-IMKEY sy-vline 
WA_GOCOBL1_STR-GEBER sy-vline 
WA_GOCOBL1_STR-FISTL sy-vline 
WA_GOCOBL1_STR-FKBER sy-vline 
WA_GOCOBL1_STR-LSTAR sy-vline 
WA_GOCOBL1_STR-PRZNR sy-vline 
WA_GOCOBL1_STR-KSTRG sy-vline 
WA_GOCOBL1_STR-GSBER sy-vline 
WA_GOCOBL1_STR-PRCTR sy-vline 
WA_GOCOBL1_STR-BUKRS sy-vline 
WA_GOCOBL1_STR-GRANT_NBR sy-vline 
WA_GOCOBL1_STR-MEASURE sy-vline 
WA_GOCOBL1_STR-BUDGET_PD sy-vline 
WA_GOCOBL1_STR-DUMMY_INCL_EEW_COBL sy-vline 
WA_GOCOBL1_STR-KBLNR sy-vline 
WA_GOCOBL1_STR-KBLPOS sy-vline 
WA_GOCOBL1_STR-FMFGUS_KEY sy-vline 
WA_GOCOBL1_STR-VPTNR sy-vline 
WA_GOCOBL1_STR-CONDI sy-vline 
WA_GOCOBL1_STR-CRPCAL sy-vline 
WA_GOCOBL1_STR-RECID sy-vline 
WA_GOCOBL1_STR-BEMOT sy-vline 
WA_GOCOBL1_STR-SERVICE_DOC_TYPE sy-vline 
WA_GOCOBL1_STR-SERVICE_DOC_ID sy-vline 
WA_GOCOBL1_STR-SERVICE_DOC_ITEM_ID sy-vline      INTO ld_text SEPARATED BY SPACE.

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