ABAP Select data from SAP table COEPB into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM COEPB
*  INTO TABLE @DATA(IT_COEPB2).
*--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_COEPB INDEX 1 INTO DATA(WA_COEPB2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<COEPB>-MANDT = 1.
<COEPB>-KOKRS = 1.
<COEPB>-BELNR = 1.
<COEPB>-BUZEI = 1.
<COEPB>-PERIO = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_COEPB-WTGBTR, sy-vline,
  WA_COEPB-WOGBTR, sy-vline,
  WA_COEPB-WKGBTR, sy-vline,
  WA_COEPB-WKFBTR, sy-vline,
  WA_COEPB-FTGBTR, sy-vline,
  WA_COEPB-FOGBTR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_COEPB 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_COEPB 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_COEPB INTO WA_COEPB.


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

*Conversion exit AC152, internal->external for field WTGBTR
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_COEPB-WTGBTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_COEPB-WTGBTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WOGBTR
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_COEPB-WOGBTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_COEPB-WOGBTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WKGBTR
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_COEPB-WKGBTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_COEPB-WKGBTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WKFBTR
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_COEPB-WKFBTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_COEPB-WKFBTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field FTGBTR
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_COEPB-FTGBTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_COEPB-FTGBTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field FOGBTR
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_COEPB-FOGBTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_COEPB-FOGBTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field FKGBTR
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_COEPB-FKGBTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_COEPB-FKGBTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field FKFBTR
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_COEPB-FKFBTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_COEPB-FKFBTR.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

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

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

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

*Conversion exit AC152, internal->external for field WDGBTR
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_COEPB-WDGBTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_COEPB-WDGBTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WVGBTR
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_COEPB-WVGBTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_COEPB-WVGBTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WFGBTR
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_COEPB-WFGBTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_COEPB-WFGBTR.
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_COEPB_STR, 
MANDT TYPE STRING,
KOKRS TYPE STRING,
BELNR TYPE STRING,
BUZEI TYPE STRING,
PERIO TYPE STRING,
WTGBTR TYPE STRING,
WOGBTR TYPE STRING,
WKGBTR TYPE STRING,
WKFBTR TYPE STRING,
FTGBTR TYPE STRING,
FOGBTR TYPE STRING,
FKGBTR TYPE STRING,
FKFBTR TYPE STRING,
LEDNR TYPE STRING,
OBJNR TYPE STRING,
GJAHR TYPE STRING,
WRTTP TYPE STRING,
VERSN TYPE STRING,
ABKAT TYPE STRING,
KSTAR TYPE STRING,
HRKFT TYPE STRING,
VRGNG TYPE STRING,
PAROB TYPE STRING,
PAROB1 TYPE STRING,
BEKNZ TYPE STRING,
AWKUS TYPE STRING,
TWAER TYPE STRING,
ZLNID TYPE STRING,
MEINH TYPE STRING,
MEGBTR TYPE STRING,
DWAER TYPE STRING,
WDGBTR TYPE STRING,
VWAER TYPE STRING,
WVGBTR TYPE STRING,
FWAER TYPE STRING,
WFGBTR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_COEPB_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_COEPB_STR-MANDT sy-vline 
WA_COEPB_STR-KOKRS sy-vline 
WA_COEPB_STR-BELNR sy-vline 
WA_COEPB_STR-BUZEI sy-vline 
WA_COEPB_STR-PERIO sy-vline 
WA_COEPB_STR-WTGBTR sy-vline 
WA_COEPB_STR-WOGBTR sy-vline 
WA_COEPB_STR-WKGBTR sy-vline 
WA_COEPB_STR-WKFBTR sy-vline 
WA_COEPB_STR-FTGBTR sy-vline 
WA_COEPB_STR-FOGBTR sy-vline 
WA_COEPB_STR-FKGBTR sy-vline 
WA_COEPB_STR-FKFBTR sy-vline 
WA_COEPB_STR-LEDNR sy-vline 
WA_COEPB_STR-OBJNR sy-vline 
WA_COEPB_STR-GJAHR sy-vline 
WA_COEPB_STR-WRTTP sy-vline 
WA_COEPB_STR-VERSN sy-vline 
WA_COEPB_STR-ABKAT sy-vline 
WA_COEPB_STR-KSTAR sy-vline 
WA_COEPB_STR-HRKFT sy-vline 
WA_COEPB_STR-VRGNG sy-vline 
WA_COEPB_STR-PAROB sy-vline 
WA_COEPB_STR-PAROB1 sy-vline 
WA_COEPB_STR-BEKNZ sy-vline 
WA_COEPB_STR-AWKUS sy-vline 
WA_COEPB_STR-TWAER sy-vline 
WA_COEPB_STR-ZLNID sy-vline 
WA_COEPB_STR-MEINH sy-vline 
WA_COEPB_STR-MEGBTR sy-vline 
WA_COEPB_STR-DWAER sy-vline 
WA_COEPB_STR-WDGBTR sy-vline 
WA_COEPB_STR-VWAER sy-vline 
WA_COEPB_STR-WVGBTR sy-vline 
WA_COEPB_STR-FWAER sy-vline 
WA_COEPB_STR-WFGBTR sy-vline      INTO ld_text SEPARATED BY SPACE.

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