ABAP Select data from SAP table CHOUSEBANK into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CHOUSEBANK
*  INTO TABLE @DATA(IT_CHOUSEBANK2).
*--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_CHOUSEBANK INDEX 1 INTO DATA(WA_CHOUSEBANK2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CHOUSEBANK>-MANDT = 1.
<CHOUSEBANK>-COMPANYCODE = 1.
<CHOUSEBANK>-HOUSEBANK = 1.
<CHOUSEBANK>-COUNTRYNAME = 1.
<CHOUSEBANK>-BANK = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CHOUSEBANK-BANKNAME, sy-vline,
  WA_CHOUSEBANK-BANKCOUNTRY, sy-vline,
  WA_CHOUSEBANK-COMPANYCODENAME, sy-vline,
  WA_CHOUSEBANK-SHORTSTREETNAME, sy-vline,
  WA_CHOUSEBANK-SHORTCITYNAME, sy-vline,
  WA_CHOUSEBANK-CONTACTPERSONNAME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CHOUSEBANK 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_CHOUSEBANK 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_CHOUSEBANK INTO WA_CHOUSEBANK.


*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_CHOUSEBANK_STR, 
MANDT TYPE STRING,
COMPANYCODE TYPE STRING,
HOUSEBANK TYPE STRING,
COUNTRYNAME TYPE STRING,
BANK TYPE STRING,
BANKNAME TYPE STRING,
BANKCOUNTRY TYPE STRING,
COMPANYCODENAME TYPE STRING,
SHORTSTREETNAME TYPE STRING,
SHORTCITYNAME TYPE STRING,
CONTACTPERSONNAME TYPE STRING,
SWIFTCODE TYPE STRING,
BANKNETWORKGROUPING TYPE STRING,
BANKNUMBER TYPE STRING,
PHONENUMBER1 TYPE STRING,
TAXID1 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CHOUSEBANK_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_CHOUSEBANK_STR-MANDT sy-vline 
WA_CHOUSEBANK_STR-COMPANYCODE sy-vline 
WA_CHOUSEBANK_STR-HOUSEBANK sy-vline 
WA_CHOUSEBANK_STR-COUNTRYNAME sy-vline 
WA_CHOUSEBANK_STR-BANK sy-vline 
WA_CHOUSEBANK_STR-BANKNAME sy-vline 
WA_CHOUSEBANK_STR-BANKCOUNTRY sy-vline 
WA_CHOUSEBANK_STR-COMPANYCODENAME sy-vline 
WA_CHOUSEBANK_STR-SHORTSTREETNAME sy-vline 
WA_CHOUSEBANK_STR-SHORTCITYNAME sy-vline 
WA_CHOUSEBANK_STR-CONTACTPERSONNAME sy-vline 
WA_CHOUSEBANK_STR-SWIFTCODE sy-vline 
WA_CHOUSEBANK_STR-BANKNETWORKGROUPING sy-vline 
WA_CHOUSEBANK_STR-BANKNUMBER sy-vline 
WA_CHOUSEBANK_STR-PHONENUMBER1 sy-vline 
WA_CHOUSEBANK_STR-TAXID1 sy-vline      INTO ld_text SEPARATED BY SPACE.

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