ABAP Select data from SAP table TCJ_CPD into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TCJ_CPD
*  INTO TABLE @DATA(IT_TCJ_CPD2).
*--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_TCJ_CPD INDEX 1 INTO DATA(WA_TCJ_CPD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TCJ_CPD>-MANDT = 1.
<TCJ_CPD>-COMP_CODE = 1.
<TCJ_CPD>-CAJO_NUMBER = 1.
<TCJ_CPD>-FISC_YEAR = 1.
<TCJ_CPD>-POSTING_NUMBER = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TCJ_CPD-POSITION_NUMBER, sy-vline,
  WA_TCJ_CPD-NAME1, sy-vline,
  WA_TCJ_CPD-NAME2, sy-vline,
  WA_TCJ_CPD-NAME3, sy-vline,
  WA_TCJ_CPD-NAME4, sy-vline,
  WA_TCJ_CPD-PSTLZ, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TCJ_CPD 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_TCJ_CPD 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_TCJ_CPD INTO WA_TCJ_CPD.


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

*Conversion exit ALPHA, internal->external for field POSTING_NUMBER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_TCJ_CPD-POSTING_NUMBER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TCJ_CPD-POSTING_NUMBER.
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_TCJ_CPD_STR, 
MANDT TYPE STRING,
COMP_CODE TYPE STRING,
CAJO_NUMBER TYPE STRING,
FISC_YEAR TYPE STRING,
POSTING_NUMBER TYPE STRING,
POSITION_NUMBER TYPE STRING,
NAME1 TYPE STRING,
NAME2 TYPE STRING,
NAME3 TYPE STRING,
NAME4 TYPE STRING,
PSTLZ TYPE STRING,
ORT01 TYPE STRING,
LAND1 TYPE STRING,
STRAS TYPE STRING,
PFACH TYPE STRING,
PSTL2 TYPE STRING,
PSKTO TYPE STRING,
BANKN TYPE STRING,
BANKL TYPE STRING,
BANKS TYPE STRING,
STCD1 TYPE STRING,
STCD2 TYPE STRING,
STKZU TYPE STRING,
STKZA TYPE STRING,
REGIO TYPE STRING,
BKONT TYPE STRING,
DTAWS TYPE STRING,
DTAMS TYPE STRING,
XCPDK TYPE STRING,
EMPFG TYPE STRING,
SPRAS TYPE STRING,
FITYP TYPE STRING,
STCDT TYPE STRING,
STKZN TYPE STRING,
STCD3 TYPE STRING,
STCD4 TYPE STRING,
BKREF TYPE STRING,
J_1KFREPRE TYPE STRING,
J_1KFTBUS TYPE STRING,
J_1KFTIND TYPE STRING,
ANRED TYPE STRING,
INTAD TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TCJ_CPD_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_TCJ_CPD_STR-MANDT sy-vline 
WA_TCJ_CPD_STR-COMP_CODE sy-vline 
WA_TCJ_CPD_STR-CAJO_NUMBER sy-vline 
WA_TCJ_CPD_STR-FISC_YEAR sy-vline 
WA_TCJ_CPD_STR-POSTING_NUMBER sy-vline 
WA_TCJ_CPD_STR-POSITION_NUMBER sy-vline 
WA_TCJ_CPD_STR-NAME1 sy-vline 
WA_TCJ_CPD_STR-NAME2 sy-vline 
WA_TCJ_CPD_STR-NAME3 sy-vline 
WA_TCJ_CPD_STR-NAME4 sy-vline 
WA_TCJ_CPD_STR-PSTLZ sy-vline 
WA_TCJ_CPD_STR-ORT01 sy-vline 
WA_TCJ_CPD_STR-LAND1 sy-vline 
WA_TCJ_CPD_STR-STRAS sy-vline 
WA_TCJ_CPD_STR-PFACH sy-vline 
WA_TCJ_CPD_STR-PSTL2 sy-vline 
WA_TCJ_CPD_STR-PSKTO sy-vline 
WA_TCJ_CPD_STR-BANKN sy-vline 
WA_TCJ_CPD_STR-BANKL sy-vline 
WA_TCJ_CPD_STR-BANKS sy-vline 
WA_TCJ_CPD_STR-STCD1 sy-vline 
WA_TCJ_CPD_STR-STCD2 sy-vline 
WA_TCJ_CPD_STR-STKZU sy-vline 
WA_TCJ_CPD_STR-STKZA sy-vline 
WA_TCJ_CPD_STR-REGIO sy-vline 
WA_TCJ_CPD_STR-BKONT sy-vline 
WA_TCJ_CPD_STR-DTAWS sy-vline 
WA_TCJ_CPD_STR-DTAMS sy-vline 
WA_TCJ_CPD_STR-XCPDK sy-vline 
WA_TCJ_CPD_STR-EMPFG sy-vline 
WA_TCJ_CPD_STR-SPRAS sy-vline 
WA_TCJ_CPD_STR-FITYP sy-vline 
WA_TCJ_CPD_STR-STCDT sy-vline 
WA_TCJ_CPD_STR-STKZN sy-vline 
WA_TCJ_CPD_STR-STCD3 sy-vline 
WA_TCJ_CPD_STR-STCD4 sy-vline 
WA_TCJ_CPD_STR-BKREF sy-vline 
WA_TCJ_CPD_STR-J_1KFREPRE sy-vline 
WA_TCJ_CPD_STR-J_1KFTBUS sy-vline 
WA_TCJ_CPD_STR-J_1KFTIND sy-vline 
WA_TCJ_CPD_STR-ANRED sy-vline 
WA_TCJ_CPD_STR-INTAD sy-vline      INTO ld_text SEPARATED BY SPACE.

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