ABAP Select data from SAP table JBIGAPZW0 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP JBIGAPZW0 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 JBIGAPZW0. 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 JBIGAPZW0 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_JBIGAPZW0 TYPE STANDARD TABLE OF JBIGAPZW0,
      WA_JBIGAPZW0 TYPE JBIGAPZW0,
      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: <JBIGAPZW0> TYPE JBIGAPZW0.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_JBIGAPZW0.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM JBIGAPZW0
  INTO TABLE IT_JBIGAPZW0.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM JBIGAPZW0
*  INTO TABLE @DATA(IT_JBIGAPZW02).
*--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_JBIGAPZW0 INDEX 1 INTO DATA(WA_JBIGAPZW02).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_JBIGAPZW0 ASSIGNING <JBIGAPZW0>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<JBIGAPZW0>-RSIMBSTD = 1.
<JBIGAPZW0>-RSIMLFNR = 1.
<JBIGAPZW0>-LFDNR = 1.
<JBIGAPZW0>-WAERS = 1.
<JBIGAPZW0>-ZINSWAERS = 1.

ENDLOOP.

LOOP AT IT_JBIGAPZW0 INTO WA_JBIGAPZW0.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_JBIGAPZW0-ANZWAERS, sy-vline,
  WA_JBIGAPZW0-AKTPASS, sy-vline,
  WA_JBIGAPZW0-LIQUID, sy-vline,
  WA_JBIGAPZW0-DATUM, sy-vline,
  WA_JBIGAPZW0-ZINSKAPB, sy-vline,
  WA_JBIGAPZW0-ZINSTILG, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_JBIGAPZW0 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_JBIGAPZW0 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_JBIGAPZW0 INTO WA_JBIGAPZW0.


*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 RSIMBSTD
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_JBIGAPZW0-RSIMBSTD
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_JBIGAPZW0-RSIMBSTD.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RSIMLFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_JBIGAPZW0-RSIMLFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_JBIGAPZW0-RSIMLFNR.
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_JBIGAPZW0_STR, 
RSIMBSTD TYPE STRING,
RSIMLFNR TYPE STRING,
LFDNR TYPE STRING,
WAERS TYPE STRING,
ZINSWAERS TYPE STRING,
ANZWAERS TYPE STRING,
AKTPASS TYPE STRING,
LIQUID TYPE STRING,
DATUM TYPE STRING,
ZINSKAPB TYPE STRING,
ZINSTILG TYPE STRING,
SPECIALPR TYPE STRING,
SPECIALEV TYPE STRING,
PROCESS_CTRL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_JBIGAPZW0_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_JBIGAPZW0_STR-RSIMBSTD sy-vline 
WA_JBIGAPZW0_STR-RSIMLFNR sy-vline 
WA_JBIGAPZW0_STR-LFDNR sy-vline 
WA_JBIGAPZW0_STR-WAERS sy-vline 
WA_JBIGAPZW0_STR-ZINSWAERS sy-vline 
WA_JBIGAPZW0_STR-ANZWAERS sy-vline 
WA_JBIGAPZW0_STR-AKTPASS sy-vline 
WA_JBIGAPZW0_STR-LIQUID sy-vline 
WA_JBIGAPZW0_STR-DATUM sy-vline 
WA_JBIGAPZW0_STR-ZINSKAPB sy-vline 
WA_JBIGAPZW0_STR-ZINSTILG sy-vline 
WA_JBIGAPZW0_STR-SPECIALPR sy-vline 
WA_JBIGAPZW0_STR-SPECIALEV sy-vline 
WA_JBIGAPZW0_STR-PROCESS_CTRL sy-vline      INTO ld_text SEPARATED BY SPACE.

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