ABAP Select data from SAP table IBKK_CHEQ into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IBKK_CHEQ
*  INTO TABLE @DATA(IT_IBKK_CHEQ2).
*--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_IBKK_CHEQ INDEX 1 INTO DATA(WA_IBKK_CHEQ2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IBKK_CHEQ>-BKKRS = 1.
<IBKK_CHEQ>-TBKKRS = 1.
<IBKK_CHEQ>-ACCOUNT = 1.
<IBKK_CHEQ>-CHEQUETYPE = 1.
<IBKK_CHEQ>-TCHEQUETYP = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IBKK_CHEQ-CHEQNO, sy-vline,
  WA_IBKK_CHEQ-CHEQNOFROM, sy-vline,
  WA_IBKK_CHEQ-CHEQNOTO, sy-vline,
  WA_IBKK_CHEQ-NCHEQUES, sy-vline,
  WA_IBKK_CHEQ-NAVAILCHEQUES, sy-vline,
  WA_IBKK_CHEQ-FLG_FEE_CALC, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IBKK_CHEQ 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_IBKK_CHEQ 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_IBKK_CHEQ INTO WA_IBKK_CHEQ.


*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 ACEXT, internal->external for field ACCOUNT
CALL FUNCTION 'CONVERSION_EXIT_ACEXT_OUTPUT'
  EXPORTING
    input =                      WA_IBKK_CHEQ-ACCOUNT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IBKK_CHEQ-ACCOUNT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field CHEQUETYPE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IBKK_CHEQ-CHEQUETYPE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IBKK_CHEQ-CHEQUETYPE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field CHEQNO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IBKK_CHEQ-CHEQNO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IBKK_CHEQ-CHEQNO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field CHEQNOFROM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IBKK_CHEQ-CHEQNOFROM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IBKK_CHEQ-CHEQNOFROM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field CHEQNOTO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IBKK_CHEQ-CHEQNOTO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IBKK_CHEQ-CHEQNOTO.
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_IBKK_CHEQ_STR, 
BKKRS TYPE STRING,
TBKKRS TYPE STRING,
ACCOUNT TYPE STRING,
CHEQUETYPE TYPE STRING,
TCHEQUETYP TYPE STRING,
CHEQNO TYPE STRING,
CHEQNOFROM TYPE STRING,
CHEQNOTO TYPE STRING,
NCHEQUES TYPE STRING,
NAVAILCHEQUES TYPE STRING,
FLG_FEE_CALC TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IBKK_CHEQ_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_IBKK_CHEQ_STR-BKKRS sy-vline 
WA_IBKK_CHEQ_STR-TBKKRS sy-vline 
WA_IBKK_CHEQ_STR-ACCOUNT sy-vline 
WA_IBKK_CHEQ_STR-CHEQUETYPE sy-vline 
WA_IBKK_CHEQ_STR-TCHEQUETYP sy-vline 
WA_IBKK_CHEQ_STR-CHEQNO sy-vline 
WA_IBKK_CHEQ_STR-CHEQNOFROM sy-vline 
WA_IBKK_CHEQ_STR-CHEQNOTO sy-vline 
WA_IBKK_CHEQ_STR-NCHEQUES sy-vline 
WA_IBKK_CHEQ_STR-NAVAILCHEQUES sy-vline 
WA_IBKK_CHEQ_STR-FLG_FEE_CALC sy-vline      INTO ld_text SEPARATED BY SPACE.

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