ABAP Select data from SAP table COEPT_ONLY into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM COEPT_ONLY
*  INTO TABLE @DATA(IT_COEPT_ONLY2).
*--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_COEPT_ONLY INDEX 1 INTO DATA(WA_COEPT_ONLY2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<COEPT_ONLY>-PERIO = 1.
<COEPT_ONLY>-TKGBTR = 1.
<COEPT_ONLY>-TKFBTR = 1.
<COEPT_ONLY>-TKEBTR = 1.
<COEPT_ONLY>-TOGBTR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_COEPT_ONLY-TOFBTR, sy-vline,
  WA_COEPT_ONLY-TOEBTR, sy-vline,
  WA_COEPT_ONLY-TXGBTR, sy-vline,
  WA_COEPT_ONLY-TXFBTR, sy-vline,
  WA_COEPT_ONLY-TXEBTR, sy-vline,
  WA_COEPT_ONLY-LEDNR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_COEPT_ONLY 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_COEPT_ONLY 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_COEPT_ONLY INTO WA_COEPT_ONLY.


*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 AC112, internal->external for field TKGBTR
CALL FUNCTION 'CONVERSION_EXIT_AC112_OUTPUT'
  EXPORTING
    input =                      WA_COEPT_ONLY-TKGBTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_COEPT_ONLY-TKGBTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC112, internal->external for field TKFBTR
CALL FUNCTION 'CONVERSION_EXIT_AC112_OUTPUT'
  EXPORTING
    input =                      WA_COEPT_ONLY-TKFBTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_COEPT_ONLY-TKFBTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC112, internal->external for field TOGBTR
CALL FUNCTION 'CONVERSION_EXIT_AC112_OUTPUT'
  EXPORTING
    input =                      WA_COEPT_ONLY-TOGBTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_COEPT_ONLY-TOGBTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC112, internal->external for field TOFBTR
CALL FUNCTION 'CONVERSION_EXIT_AC112_OUTPUT'
  EXPORTING
    input =                      WA_COEPT_ONLY-TOFBTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_COEPT_ONLY-TOFBTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC112, internal->external for field TXGBTR
CALL FUNCTION 'CONVERSION_EXIT_AC112_OUTPUT'
  EXPORTING
    input =                      WA_COEPT_ONLY-TXGBTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_COEPT_ONLY-TXGBTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC112, internal->external for field TXFBTR
CALL FUNCTION 'CONVERSION_EXIT_AC112_OUTPUT'
  EXPORTING
    input =                      WA_COEPT_ONLY-TXFBTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_COEPT_ONLY-TXFBTR.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

*Conversion exit ALPHA, internal->external for field TARKZ
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_COEPT_ONLY-TARKZ
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_COEPT_ONLY-TARKZ.
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_COEPT_ONLY_STR, 
PERIO TYPE STRING,
TKGBTR TYPE STRING,
TKFBTR TYPE STRING,
TKEBTR TYPE STRING,
TOGBTR TYPE STRING,
TOFBTR TYPE STRING,
TOEBTR TYPE STRING,
TXGBTR TYPE STRING,
TXFBTR TYPE STRING,
TXEBTR TYPE STRING,
LEDNR TYPE STRING,
OBJNR TYPE STRING,
GJAHR TYPE STRING,
WRTTP TYPE STRING,
VERSN TYPE STRING,
TARKZ TYPE STRING,
VRGNG TYPE STRING,
SGTXT TYPE STRING,
REFBZ TYPE STRING,
ZLENR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_COEPT_ONLY_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_COEPT_ONLY_STR-PERIO sy-vline 
WA_COEPT_ONLY_STR-TKGBTR sy-vline 
WA_COEPT_ONLY_STR-TKFBTR sy-vline 
WA_COEPT_ONLY_STR-TKEBTR sy-vline 
WA_COEPT_ONLY_STR-TOGBTR sy-vline 
WA_COEPT_ONLY_STR-TOFBTR sy-vline 
WA_COEPT_ONLY_STR-TOEBTR sy-vline 
WA_COEPT_ONLY_STR-TXGBTR sy-vline 
WA_COEPT_ONLY_STR-TXFBTR sy-vline 
WA_COEPT_ONLY_STR-TXEBTR sy-vline 
WA_COEPT_ONLY_STR-LEDNR sy-vline 
WA_COEPT_ONLY_STR-OBJNR sy-vline 
WA_COEPT_ONLY_STR-GJAHR sy-vline 
WA_COEPT_ONLY_STR-WRTTP sy-vline 
WA_COEPT_ONLY_STR-VERSN sy-vline 
WA_COEPT_ONLY_STR-TARKZ sy-vline 
WA_COEPT_ONLY_STR-VRGNG sy-vline 
WA_COEPT_ONLY_STR-SGTXT sy-vline 
WA_COEPT_ONLY_STR-REFBZ sy-vline 
WA_COEPT_ONLY_STR-ZLENR sy-vline      INTO ld_text SEPARATED BY SPACE.

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