ABAP Select data from SAP table PJP_FORM_TAXCG into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PJP_FORM_TAXCG
*  INTO TABLE @DATA(IT_PJP_FORM_TAXCG2).
*--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_PJP_FORM_TAXCG INDEX 1 INTO DATA(WA_PJP_FORM_TAXCG2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PJP_FORM_TAXCG>-JAN = 1.
<PJP_FORM_TAXCG>-FEB = 1.
<PJP_FORM_TAXCG>-MAR = 1.
<PJP_FORM_TAXCG>-APR = 1.
<PJP_FORM_TAXCG>-MAY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PJP_FORM_TAXCG-JUNE, sy-vline,
  WA_PJP_FORM_TAXCG-JULY, sy-vline,
  WA_PJP_FORM_TAXCG-AUG, sy-vline,
  WA_PJP_FORM_TAXCG-SEP, sy-vline,
  WA_PJP_FORM_TAXCG-OCT, sy-vline,
  WA_PJP_FORM_TAXCG-NOV, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PJP_FORM_TAXCG 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_PJP_FORM_TAXCG 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_PJP_FORM_TAXCG INTO WA_PJP_FORM_TAXCG.


*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_PJP_FORM_TAXCG_STR, 
JAN TYPE STRING,
FEB TYPE STRING,
MAR TYPE STRING,
APR TYPE STRING,
MAY TYPE STRING,
JUNE TYPE STRING,
JULY TYPE STRING,
AUG TYPE STRING,
SEP TYPE STRING,
OCT TYPE STRING,
NOV TYPE STRING,
DEC TYPE STRING,
PTKOH TYPE STRING,
PTOTSU TYPE STRING,
PTHEI TYPE STRING,
PTSONOTA TYPE STRING,
FIRST TYPE STRING,
SECOND TYPE STRING,
THIRD TYPE STRING,
FOURTH TYPE STRING,
FIFTH TYPE STRING,
STKOH TYPE STRING,
STOTSU TYPE STRING,
STHEI TYPE STRING,
STSONOTA TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PJP_FORM_TAXCG_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_PJP_FORM_TAXCG_STR-JAN sy-vline 
WA_PJP_FORM_TAXCG_STR-FEB sy-vline 
WA_PJP_FORM_TAXCG_STR-MAR sy-vline 
WA_PJP_FORM_TAXCG_STR-APR sy-vline 
WA_PJP_FORM_TAXCG_STR-MAY sy-vline 
WA_PJP_FORM_TAXCG_STR-JUNE sy-vline 
WA_PJP_FORM_TAXCG_STR-JULY sy-vline 
WA_PJP_FORM_TAXCG_STR-AUG sy-vline 
WA_PJP_FORM_TAXCG_STR-SEP sy-vline 
WA_PJP_FORM_TAXCG_STR-OCT sy-vline 
WA_PJP_FORM_TAXCG_STR-NOV sy-vline 
WA_PJP_FORM_TAXCG_STR-DEC sy-vline 
WA_PJP_FORM_TAXCG_STR-PTKOH sy-vline 
WA_PJP_FORM_TAXCG_STR-PTOTSU sy-vline 
WA_PJP_FORM_TAXCG_STR-PTHEI sy-vline 
WA_PJP_FORM_TAXCG_STR-PTSONOTA sy-vline 
WA_PJP_FORM_TAXCG_STR-FIRST sy-vline 
WA_PJP_FORM_TAXCG_STR-SECOND sy-vline 
WA_PJP_FORM_TAXCG_STR-THIRD sy-vline 
WA_PJP_FORM_TAXCG_STR-FOURTH sy-vline 
WA_PJP_FORM_TAXCG_STR-FIFTH sy-vline 
WA_PJP_FORM_TAXCG_STR-STKOH sy-vline 
WA_PJP_FORM_TAXCG_STR-STOTSU sy-vline 
WA_PJP_FORM_TAXCG_STR-STHEI sy-vline 
WA_PJP_FORM_TAXCG_STR-STSONOTA sy-vline      INTO ld_text SEPARATED BY SPACE.

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