ABAP Select data from SAP table CSCACCTLINK into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CSCACCTLINK
*  INTO TABLE @DATA(IT_CSCACCTLINK2).
*--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_CSCACCTLINK INDEX 1 INTO DATA(WA_CSCACCTLINK2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CSCACCTLINK>-MANDT = 1.
<CSCACCTLINK>-BANKACCOUNTINTERNALID = 1.
<CSCACCTLINK>-SIGNATORYCARDID = 1.
<CSCACCTLINK>-BANKACCOUNTNUMBER = 1.
<CSCACCTLINK>-COMPANYCODE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CSCACCTLINK-COMPANYCODENAME, sy-vline,
  WA_CSCACCTLINK-COMPANYCODECOUNTRY, sy-vline,
  WA_CSCACCTLINK-BANKACCOUNTREVISION, sy-vline,
  WA_CSCACCTLINK-BANKCOUNTRY, sy-vline,
  WA_CSCACCTLINK-BANKCOUNTRYNAME, sy-vline,
  WA_CSCACCTLINK-BANK, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CSCACCTLINK 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_CSCACCTLINK 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_CSCACCTLINK INTO WA_CSCACCTLINK.


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

*Conversion exit ALPHA, internal->external for field PROFITCENTER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CSCACCTLINK-PROFITCENTER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CSCACCTLINK-PROFITCENTER.
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_CSCACCTLINK_STR, 
MANDT TYPE STRING,
BANKACCOUNTINTERNALID TYPE STRING,
SIGNATORYCARDID TYPE STRING,
BANKACCOUNTNUMBER TYPE STRING,
COMPANYCODE TYPE STRING,
COMPANYCODENAME TYPE STRING,
COMPANYCODECOUNTRY TYPE STRING,
BANKACCOUNTREVISION TYPE STRING,
BANKCOUNTRY TYPE STRING,
BANKCOUNTRYNAME TYPE STRING,
BANK TYPE STRING,
BANKNAME TYPE STRING,
BANKACCOUNTTYPE TYPE STRING,
BUSINESSAREA TYPE STRING,
SEGMENT TYPE STRING,
CONTROLLINGAREA TYPE STRING,
PROFITCENTER TYPE STRING,
BANKACCOUNTCURRENCY TYPE STRING,
VALIDITYSTARTDATE TYPE STRING,
VALIDITYENDDATE TYPE STRING,
SIGNCARDVALIDITYSTARTDATE TYPE STRING,
SIGNCARDVALIDITYENDDATE TYPE STRING,
BANKACCOUNTDESCRIPTION TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CSCACCTLINK_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_CSCACCTLINK_STR-MANDT sy-vline 
WA_CSCACCTLINK_STR-BANKACCOUNTINTERNALID sy-vline 
WA_CSCACCTLINK_STR-SIGNATORYCARDID sy-vline 
WA_CSCACCTLINK_STR-BANKACCOUNTNUMBER sy-vline 
WA_CSCACCTLINK_STR-COMPANYCODE sy-vline 
WA_CSCACCTLINK_STR-COMPANYCODENAME sy-vline 
WA_CSCACCTLINK_STR-COMPANYCODECOUNTRY sy-vline 
WA_CSCACCTLINK_STR-BANKACCOUNTREVISION sy-vline 
WA_CSCACCTLINK_STR-BANKCOUNTRY sy-vline 
WA_CSCACCTLINK_STR-BANKCOUNTRYNAME sy-vline 
WA_CSCACCTLINK_STR-BANK sy-vline 
WA_CSCACCTLINK_STR-BANKNAME sy-vline 
WA_CSCACCTLINK_STR-BANKACCOUNTTYPE sy-vline 
WA_CSCACCTLINK_STR-BUSINESSAREA sy-vline 
WA_CSCACCTLINK_STR-SEGMENT sy-vline 
WA_CSCACCTLINK_STR-CONTROLLINGAREA sy-vline 
WA_CSCACCTLINK_STR-PROFITCENTER sy-vline 
WA_CSCACCTLINK_STR-BANKACCOUNTCURRENCY sy-vline 
WA_CSCACCTLINK_STR-VALIDITYSTARTDATE sy-vline 
WA_CSCACCTLINK_STR-VALIDITYENDDATE sy-vline 
WA_CSCACCTLINK_STR-SIGNCARDVALIDITYSTARTDATE sy-vline 
WA_CSCACCTLINK_STR-SIGNCARDVALIDITYENDDATE sy-vline 
WA_CSCACCTLINK_STR-BANKACCOUNTDESCRIPTION sy-vline      INTO ld_text SEPARATED BY SPACE.

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