ABAP Select data from SAP table ISJPTAXADJUST into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ISJPTAXADJUST
*  INTO TABLE @DATA(IT_ISJPTAXADJUST2).
*--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_ISJPTAXADJUST INDEX 1 INTO DATA(WA_ISJPTAXADJUST2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ISJPTAXADJUST>-MANDT = 1.
<ISJPTAXADJUST>-BUKRS = 1.
<ISJPTAXADJUST>-BLART = 1.
<ISJPTAXADJUST>-MWSKZ = 1.
<ISJPTAXADJUST>-PKPAYERS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ISJPTAXADJUST-PKGLH, sy-vline,
  WA_ISJPTAXADJUST-KONTH, sy-vline,
  WA_ISJPTAXADJUST-PKPAYERH, sy-vline,
  WA_ISJPTAXADJUST-PKGLS, sy-vline,
  WA_ISJPTAXADJUST-KONTS, sy-vline,
  WA_ISJPTAXADJUST-STGRD, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ISJPTAXADJUST 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_ISJPTAXADJUST 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_ISJPTAXADJUST INTO WA_ISJPTAXADJUST.


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

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

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

*Conversion exit ALPHA, internal->external for field KONTS_V
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ISJPTAXADJUST-KONTS_V
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISJPTAXADJUST-KONTS_V.
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_ISJPTAXADJUST_STR, 
MANDT TYPE STRING,
BUKRS TYPE STRING,
BLART TYPE STRING,
MWSKZ TYPE STRING,
PKPAYERS TYPE STRING,
PKGLH TYPE STRING,
KONTH TYPE STRING,
PKPAYERH TYPE STRING,
PKGLS TYPE STRING,
KONTS TYPE STRING,
STGRD TYPE STRING,
KONTH_V TYPE STRING,
KONTS_V TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ISJPTAXADJUST_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_ISJPTAXADJUST_STR-MANDT sy-vline 
WA_ISJPTAXADJUST_STR-BUKRS sy-vline 
WA_ISJPTAXADJUST_STR-BLART sy-vline 
WA_ISJPTAXADJUST_STR-MWSKZ sy-vline 
WA_ISJPTAXADJUST_STR-PKPAYERS sy-vline 
WA_ISJPTAXADJUST_STR-PKGLH sy-vline 
WA_ISJPTAXADJUST_STR-KONTH sy-vline 
WA_ISJPTAXADJUST_STR-PKPAYERH sy-vline 
WA_ISJPTAXADJUST_STR-PKGLS sy-vline 
WA_ISJPTAXADJUST_STR-KONTS sy-vline 
WA_ISJPTAXADJUST_STR-STGRD sy-vline 
WA_ISJPTAXADJUST_STR-KONTH_V sy-vline 
WA_ISJPTAXADJUST_STR-KONTS_V sy-vline      INTO ld_text SEPARATED BY SPACE.

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