ABAP Select data from SAP table COEPD1 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP COEPD1 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 COEPD1. 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 COEPD1 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_COEPD1 TYPE STANDARD TABLE OF COEPD1,
      WA_COEPD1 TYPE COEPD1,
      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: <COEPD1> TYPE COEPD1.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_COEPD1.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM COEPD1
  INTO TABLE IT_COEPD1.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM COEPD1
*  INTO TABLE @DATA(IT_COEPD12).
*--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_COEPD1 INDEX 1 INTO DATA(WA_COEPD12).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_COEPD1 ASSIGNING <COEPD1>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<COEPD1>-MANDT = 1.
<COEPD1>-KOKRS = 1.
<COEPD1>-BELNR = 1.
<COEPD1>-BUZEI = 1.
<COEPD1>-ABWNR = 1.

ENDLOOP.

LOOP AT IT_COEPD1 INTO WA_COEPD1.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_COEPD1-BUREG, sy-vline,
  WA_COEPD1-ABWST, sy-vline,
  WA_COEPD1-ABWDA, sy-vline,
  WA_COEPD1-WTGBTA, sy-vline,
  WA_COEPD1-WOGBTA, sy-vline,
  WA_COEPD1-WKGBTA, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_COEPD1 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_COEPD1 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_COEPD1 INTO WA_COEPD1.


*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_COEPD1-BELNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_COEPD1-BELNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WTGBTA
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_COEPD1-WTGBTA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_COEPD1-WTGBTA.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WOGBTA
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_COEPD1-WOGBTA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_COEPD1-WOGBTA.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WKGBTA
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_COEPD1-WKGBTA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_COEPD1-WKGBTA.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WKFBTA
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_COEPD1-WKFBTA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_COEPD1-WKFBTA.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field URZUO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_COEPD1-URZUO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_COEPD1-URZUO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ANLN1
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_COEPD1-ANLN1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_COEPD1-ANLN1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ANLN2
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_COEPD1-ANLN2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_COEPD1-ANLN2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WAGBTA
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_COEPD1-WAGBTA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_COEPD1-WAGBTA.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WVGBTA
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_COEPD1-WVGBTA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_COEPD1-WVGBTA.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WBGBTA
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_COEPD1-WBGBTA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_COEPD1-WBGBTA.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WCGBTA
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_COEPD1-WCGBTA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_COEPD1-WCGBTA.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WDGBTA
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_COEPD1-WDGBTA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_COEPD1-WDGBTA.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WEGBTA
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_COEPD1-WEGBTA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_COEPD1-WEGBTA.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WFGBTA
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_COEPD1-WFGBTA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_COEPD1-WFGBTA.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field WGGBTA
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_COEPD1-WGGBTA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_COEPD1-WGGBTA.
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_COEPD1_STR, 
MANDT TYPE STRING,
KOKRS TYPE STRING,
BELNR TYPE STRING,
BUZEI TYPE STRING,
ABWNR TYPE STRING,
BUREG TYPE STRING,
ABWST TYPE STRING,
ABWDA TYPE STRING,
WTGBTA TYPE STRING,
WOGBTA TYPE STRING,
WKGBTA TYPE STRING,
WKFBTA TYPE STRING,
OBJNR TYPE STRING,
URZUO TYPE STRING,
XSTOR TYPE STRING,
BUKRS TYPE STRING,
ANLN1 TYPE STRING,
ANLN2 TYPE STRING,
WAGBTA TYPE STRING,
WVGBTA TYPE STRING,
WBGBTA TYPE STRING,
WCGBTA TYPE STRING,
WDGBTA TYPE STRING,
WEGBTA TYPE STRING,
WFGBTA TYPE STRING,
WGGBTA TYPE STRING,END OF T_EKKO_STR.
DATA: WA_COEPD1_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_COEPD1_STR-MANDT sy-vline 
WA_COEPD1_STR-KOKRS sy-vline 
WA_COEPD1_STR-BELNR sy-vline 
WA_COEPD1_STR-BUZEI sy-vline 
WA_COEPD1_STR-ABWNR sy-vline 
WA_COEPD1_STR-BUREG sy-vline 
WA_COEPD1_STR-ABWST sy-vline 
WA_COEPD1_STR-ABWDA sy-vline 
WA_COEPD1_STR-WTGBTA sy-vline 
WA_COEPD1_STR-WOGBTA sy-vline 
WA_COEPD1_STR-WKGBTA sy-vline 
WA_COEPD1_STR-WKFBTA sy-vline 
WA_COEPD1_STR-OBJNR sy-vline 
WA_COEPD1_STR-URZUO sy-vline 
WA_COEPD1_STR-XSTOR sy-vline 
WA_COEPD1_STR-BUKRS sy-vline 
WA_COEPD1_STR-ANLN1 sy-vline 
WA_COEPD1_STR-ANLN2 sy-vline 
WA_COEPD1_STR-WAGBTA sy-vline 
WA_COEPD1_STR-WVGBTA sy-vline 
WA_COEPD1_STR-WBGBTA sy-vline 
WA_COEPD1_STR-WCGBTA sy-vline 
WA_COEPD1_STR-WDGBTA sy-vline 
WA_COEPD1_STR-WEGBTA sy-vline 
WA_COEPD1_STR-WFGBTA sy-vline 
WA_COEPD1_STR-WGGBTA sy-vline      INTO ld_text SEPARATED BY SPACE.

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