ABAP Select data from SAP table CBANKFS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CBANKFS
*  INTO TABLE @DATA(IT_CBANKFS2).
*--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_CBANKFS INDEX 1 INTO DATA(WA_CBANKFS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CBANKFS>-MANDT = 1.
<CBANKFS>-BANKCOUNTRY = 1.
<CBANKFS>-BANK = 1.
<CBANKFS>-BANKNAME = 1.
<CBANKFS>-INTERNALBANKCATEGORY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CBANKFS-INTERNALBANKCATEGORYDESC, sy-vline,
  WA_CBANKFS-SHORTCITYNAME, sy-vline,
  WA_CBANKFS-COUNTRYNAME, sy-vline,
  WA_CBANKFS-REGION, sy-vline,
  WA_CBANKFS-SHORTSTREETNAME, sy-vline,
  WA_CBANKFS-BANKBRANCH, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CBANKFS 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_CBANKFS 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_CBANKFS INTO WA_CBANKFS.


*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_CBANKFS_STR, 
MANDT TYPE STRING,
BANKCOUNTRY TYPE STRING,
BANK TYPE STRING,
BANKNAME TYPE STRING,
INTERNALBANKCATEGORY TYPE STRING,
INTERNALBANKCATEGORYDESC TYPE STRING,
SHORTCITYNAME TYPE STRING,
COUNTRYNAME TYPE STRING,
REGION TYPE STRING,
SHORTSTREETNAME TYPE STRING,
BANKBRANCH TYPE STRING,
SWIFTCODE TYPE STRING,
ISPOSTBANKACCOUNT TYPE STRING,
BANKNUMBER TYPE STRING,
POSTOFFICEBANKACCOUNT TYPE STRING,
BANKNETWORKGROUPING TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CBANKFS_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_CBANKFS_STR-MANDT sy-vline 
WA_CBANKFS_STR-BANKCOUNTRY sy-vline 
WA_CBANKFS_STR-BANK sy-vline 
WA_CBANKFS_STR-BANKNAME sy-vline 
WA_CBANKFS_STR-INTERNALBANKCATEGORY sy-vline 
WA_CBANKFS_STR-INTERNALBANKCATEGORYDESC sy-vline 
WA_CBANKFS_STR-SHORTCITYNAME sy-vline 
WA_CBANKFS_STR-COUNTRYNAME sy-vline 
WA_CBANKFS_STR-REGION sy-vline 
WA_CBANKFS_STR-SHORTSTREETNAME sy-vline 
WA_CBANKFS_STR-BANKBRANCH sy-vline 
WA_CBANKFS_STR-SWIFTCODE sy-vline 
WA_CBANKFS_STR-ISPOSTBANKACCOUNT sy-vline 
WA_CBANKFS_STR-BANKNUMBER sy-vline 
WA_CBANKFS_STR-POSTOFFICEBANKACCOUNT sy-vline 
WA_CBANKFS_STR-BANKNETWORKGROUPING sy-vline      INTO ld_text SEPARATED BY SPACE.

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