ABAP Select data from SAP table /BIC/CCDB0FI_GL_21 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /BIC/CCDB0FI_GL_21 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 /BIC/CCDB0FI_GL_21. 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 /BIC/CCDB0FI_GL_21 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_/BIC/CCDB0FI_GL_21 TYPE STANDARD TABLE OF /BIC/CCDB0FI_GL_21,
      WA_/BIC/CCDB0FI_GL_21 TYPE /BIC/CCDB0FI_GL_21,
      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: </BIC/CCDB0FI_GL_21> TYPE /BIC/CCDB0FI_GL_21.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_/BIC/CCDB0FI_GL_21.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /BIC/CCDB0FI_GL_21
  INTO TABLE IT_/BIC/CCDB0FI_GL_21.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /BIC/CCDB0FI_GL_21
*  INTO TABLE @DATA(IT_/BIC/CCDB0FI_GL_212).
*--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_/BIC/CCDB0FI_GL_21 INDEX 1 INTO DATA(WA_/BIC/CCDB0FI_GL_212).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/BIC/CCDB0FI_GL_21 ASSIGNING </BIC/CCDB0FI_GL_21>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</BIC/CCDB0FI_GL_21>-RYEAR = 1.
</BIC/CCDB0FI_GL_21>-POPER = 1.
</BIC/CCDB0FI_GL_21>-RMVCT = 1.
</BIC/CCDB0FI_GL_21>-RTCUR = 1.
</BIC/CCDB0FI_GL_21>-RLDNR = 1.

ENDLOOP.

LOOP AT IT_/BIC/CCDB0FI_GL_21 INTO WA_/BIC/CCDB0FI_GL_21.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/BIC/CCDB0FI_GL_21-RVERS, sy-vline,
  WA_/BIC/CCDB0FI_GL_21-LOGSYS, sy-vline,
  WA_/BIC/CCDB0FI_GL_21-RACCT, sy-vline,
  WA_/BIC/CCDB0FI_GL_21-COST_ELEM, sy-vline,
  WA_/BIC/CCDB0FI_GL_21-RBUKRS, sy-vline,
  WA_/BIC/CCDB0FI_GL_21-RCNTR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/BIC/CCDB0FI_GL_21 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_/BIC/CCDB0FI_GL_21 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_/BIC/CCDB0FI_GL_21 INTO WA_/BIC/CCDB0FI_GL_21.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_/BIC/CCDB0FI_GL_21_STR, 
RYEAR TYPE STRING,
POPER TYPE STRING,
RMVCT TYPE STRING,
RTCUR TYPE STRING,
RLDNR TYPE STRING,
RVERS TYPE STRING,
LOGSYS TYPE STRING,
RACCT TYPE STRING,
COST_ELEM TYPE STRING,
RBUKRS TYPE STRING,
RCNTR TYPE STRING,
PRCTR TYPE STRING,
RFAREA TYPE STRING,
RBUSA TYPE STRING,
KOKRS TYPE STRING,
SEGMENT TYPE STRING,
SCNTR TYPE STRING,
PPRCTR TYPE STRING,
SFAREA TYPE STRING,
SBUSA TYPE STRING,
RASSC TYPE STRING,
PSEGMENT TYPE STRING,
VALUETYPE TYPE STRING,
CURTYPE TYPE STRING,
FISCPER TYPE STRING,
FISCVAR TYPE STRING,
UPMOD TYPE STRING,
VALUTYP TYPE STRING,
CURRUNIT TYPE STRING,
POPER_FROM TYPE STRING,
POPER_TO TYPE STRING,
BALANCE_PY TYPE STRING,
BALANCE_CY_PP TYPE STRING,
BALANCE_PP TYPE STRING,
DEBIT_CY_SP TYPE STRING,
CREDIT_CY_SP TYPE STRING,
DEBIT_CP TYPE STRING,
CREDIT_CP TYPE STRING,
BALANCE_CP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/BIC/CCDB0FI_GL_21_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_/BIC/CCDB0FI_GL_21_STR-RYEAR sy-vline 
WA_/BIC/CCDB0FI_GL_21_STR-POPER sy-vline 
WA_/BIC/CCDB0FI_GL_21_STR-RMVCT sy-vline 
WA_/BIC/CCDB0FI_GL_21_STR-RTCUR sy-vline 
WA_/BIC/CCDB0FI_GL_21_STR-RLDNR sy-vline 
WA_/BIC/CCDB0FI_GL_21_STR-RVERS sy-vline 
WA_/BIC/CCDB0FI_GL_21_STR-LOGSYS sy-vline 
WA_/BIC/CCDB0FI_GL_21_STR-RACCT sy-vline 
WA_/BIC/CCDB0FI_GL_21_STR-COST_ELEM sy-vline 
WA_/BIC/CCDB0FI_GL_21_STR-RBUKRS sy-vline 
WA_/BIC/CCDB0FI_GL_21_STR-RCNTR sy-vline 
WA_/BIC/CCDB0FI_GL_21_STR-PRCTR sy-vline 
WA_/BIC/CCDB0FI_GL_21_STR-RFAREA sy-vline 
WA_/BIC/CCDB0FI_GL_21_STR-RBUSA sy-vline 
WA_/BIC/CCDB0FI_GL_21_STR-KOKRS sy-vline 
WA_/BIC/CCDB0FI_GL_21_STR-SEGMENT sy-vline 
WA_/BIC/CCDB0FI_GL_21_STR-SCNTR sy-vline 
WA_/BIC/CCDB0FI_GL_21_STR-PPRCTR sy-vline 
WA_/BIC/CCDB0FI_GL_21_STR-SFAREA sy-vline 
WA_/BIC/CCDB0FI_GL_21_STR-SBUSA sy-vline 
WA_/BIC/CCDB0FI_GL_21_STR-RASSC sy-vline 
WA_/BIC/CCDB0FI_GL_21_STR-PSEGMENT sy-vline 
WA_/BIC/CCDB0FI_GL_21_STR-VALUETYPE sy-vline 
WA_/BIC/CCDB0FI_GL_21_STR-CURTYPE sy-vline 
WA_/BIC/CCDB0FI_GL_21_STR-FISCPER sy-vline 
WA_/BIC/CCDB0FI_GL_21_STR-FISCVAR sy-vline 
WA_/BIC/CCDB0FI_GL_21_STR-UPMOD sy-vline 
WA_/BIC/CCDB0FI_GL_21_STR-VALUTYP sy-vline 
WA_/BIC/CCDB0FI_GL_21_STR-CURRUNIT sy-vline 
WA_/BIC/CCDB0FI_GL_21_STR-POPER_FROM sy-vline 
WA_/BIC/CCDB0FI_GL_21_STR-POPER_TO sy-vline 
WA_/BIC/CCDB0FI_GL_21_STR-BALANCE_PY sy-vline 
WA_/BIC/CCDB0FI_GL_21_STR-BALANCE_CY_PP sy-vline 
WA_/BIC/CCDB0FI_GL_21_STR-BALANCE_PP sy-vline 
WA_/BIC/CCDB0FI_GL_21_STR-DEBIT_CY_SP sy-vline 
WA_/BIC/CCDB0FI_GL_21_STR-CREDIT_CY_SP sy-vline 
WA_/BIC/CCDB0FI_GL_21_STR-DEBIT_CP sy-vline 
WA_/BIC/CCDB0FI_GL_21_STR-CREDIT_CP sy-vline 
WA_/BIC/CCDB0FI_GL_21_STR-BALANCE_CP sy-vline      INTO ld_text SEPARATED BY SPACE.

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