ABAP Select data from SAP table COPA_ZJF into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM COPA_ZJF
*  INTO TABLE @DATA(IT_COPA_ZJF2).
*--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_COPA_ZJF INDEX 1 INTO DATA(WA_COPA_ZJF2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<COPA_ZJF>-WDARE = 1.
<COPA_ZJF>-WBUDAT = 1.
<COPA_ZJF>-WBLDAT = 1.
<COPA_ZJF>-WBLART = 1.
<COPA_ZJF>-WMONAT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_COPA_ZJF-WWAERS, sy-vline,
  WA_COPA_ZJF-WBUKRS, sy-vline,
  WA_COPA_ZJF-WBKTXT, sy-vline,
  WA_COPA_ZJF-WXBLNR, sy-vline,
  WA_COPA_ZJF-WCONTOD, sy-vline,
  WA_COPA_ZJF-WCONTOA, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_COPA_ZJF 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_COPA_ZJF 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_COPA_ZJF INTO WA_COPA_ZJF.


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

*Conversion exit ALPHA, internal->external for field WCONTOA
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_COPA_ZJF-WCONTOA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_COPA_ZJF-WCONTOA.
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_COPA_ZJF_STR, 
WDARE TYPE STRING,
WBUDAT TYPE STRING,
WBLDAT TYPE STRING,
WBLART TYPE STRING,
WMONAT TYPE STRING,
WWAERS TYPE STRING,
WBUKRS TYPE STRING,
WBKTXT TYPE STRING,
WXBLNR TYPE STRING,
WCONTOD TYPE STRING,
WCONTOA TYPE STRING,END OF T_EKKO_STR.
DATA: WA_COPA_ZJF_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_COPA_ZJF_STR-WDARE sy-vline 
WA_COPA_ZJF_STR-WBUDAT sy-vline 
WA_COPA_ZJF_STR-WBLDAT sy-vline 
WA_COPA_ZJF_STR-WBLART sy-vline 
WA_COPA_ZJF_STR-WMONAT sy-vline 
WA_COPA_ZJF_STR-WWAERS sy-vline 
WA_COPA_ZJF_STR-WBUKRS sy-vline 
WA_COPA_ZJF_STR-WBKTXT sy-vline 
WA_COPA_ZJF_STR-WXBLNR sy-vline 
WA_COPA_ZJF_STR-WCONTOD sy-vline 
WA_COPA_ZJF_STR-WCONTOA sy-vline      INTO ld_text SEPARATED BY SPACE.

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