ABAP Select data from SAP table IINSTRPGSTR6C into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP IINSTRPGSTR6C 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 IINSTRPGSTR6C. 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 IINSTRPGSTR6C 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_IINSTRPGSTR6C TYPE STANDARD TABLE OF IINSTRPGSTR6C,
      WA_IINSTRPGSTR6C TYPE IINSTRPGSTR6C,
      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: <IINSTRPGSTR6C> TYPE IINSTRPGSTR6C.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_IINSTRPGSTR6C.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM IINSTRPGSTR6C
  INTO TABLE IT_IINSTRPGSTR6C.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IINSTRPGSTR6C
*  INTO TABLE @DATA(IT_IINSTRPGSTR6C2).
*--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_IINSTRPGSTR6C INDEX 1 INTO DATA(WA_IINSTRPGSTR6C2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_IINSTRPGSTR6C ASSIGNING <IINSTRPGSTR6C>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IINSTRPGSTR6C>-MANDT = 1.
<IINSTRPGSTR6C>-COMPANYCODE = 1.
<IINSTRPGSTR6C>-ACCOUNTINGDOCUMENT = 1.
<IINSTRPGSTR6C>-FISCALYEAR = 1.
<IINSTRPGSTR6C>-STATRYRPTGENTITY = 1.

ENDLOOP.

LOOP AT IT_IINSTRPGSTR6C INTO WA_IINSTRPGSTR6C.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IINSTRPGSTR6C-STATRYRPTCATEGORY, sy-vline,
  WA_IINSTRPGSTR6C-STATRYRPTRUNID, sy-vline,
  WA_IINSTRPGSTR6C-TAXITEMGROUP, sy-vline,
  WA_IINSTRPGSTR6C-BUSINESSPLACE, sy-vline,
  WA_IINSTRPGSTR6C-TAXRATE, sy-vline,
  WA_IINSTRPGSTR6C-POSTINGDATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IINSTRPGSTR6C 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_IINSTRPGSTR6C 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_IINSTRPGSTR6C INTO WA_IINSTRPGSTR6C.


*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 ACCOUNTINGDOCUMENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IINSTRPGSTR6C-ACCOUNTINGDOCUMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IINSTRPGSTR6C-ACCOUNTINGDOCUMENT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field FISCALYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_IINSTRPGSTR6C-FISCALYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IINSTRPGSTR6C-FISCALYEAR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field TAXBASEAMOUNTINCOCODECRCY
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_IINSTRPGSTR6C-TAXBASEAMOUNTINCOCODECRCY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IINSTRPGSTR6C-TAXBASEAMOUNTINCOCODECRCY.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field IN_INTEGRATEDGSTAMOUNT
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_IINSTRPGSTR6C-IN_INTEGRATEDGSTAMOUNT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IINSTRPGSTR6C-IN_INTEGRATEDGSTAMOUNT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field IN_STATEGSTAMOUNT
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_IINSTRPGSTR6C-IN_STATEGSTAMOUNT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IINSTRPGSTR6C-IN_STATEGSTAMOUNT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field IN_CENTRALGSTAMOUNT
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_IINSTRPGSTR6C-IN_CENTRALGSTAMOUNT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IINSTRPGSTR6C-IN_CENTRALGSTAMOUNT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field IN_CESSGSTAMTINCOCODECRCY
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_IINSTRPGSTR6C-IN_CESSGSTAMTINCOCODECRCY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IINSTRPGSTR6C-IN_CESSGSTAMTINCOCODECRCY.
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_IINSTRPGSTR6C_STR, 
MANDT TYPE STRING,
COMPANYCODE TYPE STRING,
ACCOUNTINGDOCUMENT TYPE STRING,
FISCALYEAR TYPE STRING,
STATRYRPTGENTITY TYPE STRING,
STATRYRPTCATEGORY TYPE STRING,
STATRYRPTRUNID TYPE STRING,
TAXITEMGROUP TYPE STRING,
BUSINESSPLACE TYPE STRING,
TAXRATE TYPE STRING,
POSTINGDATE TYPE STRING,
DOCUMENTDATE TYPE STRING,
DATEFORMAT TYPE STRING,
TAXREPORTINGDATE TYPE STRING,
DOCUMENTREFERENCEID TYPE STRING,
IN_GSTIDENTIFICATIONNUMBER TYPE STRING,
IN_GSTPLACEOFSUPPLY TYPE STRING,
TAXBASEAMOUNTINCOCODECRCY TYPE STRING,
AMOUNTINCOMPANYCODECURRENCY TYPE STRING,
DEBITCREDITCODE TYPE STRING,
TAXISNOTDEDUCTIBLE TYPE STRING,
REPORTINGCURRENCY TYPE STRING,
IN_GSTSECTION TYPE STRING,
IN_GSTDOCUMENTTYPE TYPE STRING,
IN_INTEGRATEDGSTAMOUNT TYPE STRING,
IN_STATEGSTAMOUNT TYPE STRING,
IN_CENTRALGSTAMOUNT TYPE STRING,
IN_CESSGSTAMTINCOCODECRCY TYPE STRING,
IN_GSTINPTSRVCDISTRDOCTYPE TYPE STRING,
IN_GSTREGISTEREDTYPE TYPE STRING,
IN_GSTLEGALSTATECODE TYPE STRING,
ACCOUNTINGDOCEXTERNALREFERENCE TYPE STRING,
DATEFORMATDESCRIPTION TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IINSTRPGSTR6C_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_IINSTRPGSTR6C_STR-MANDT sy-vline 
WA_IINSTRPGSTR6C_STR-COMPANYCODE sy-vline 
WA_IINSTRPGSTR6C_STR-ACCOUNTINGDOCUMENT sy-vline 
WA_IINSTRPGSTR6C_STR-FISCALYEAR sy-vline 
WA_IINSTRPGSTR6C_STR-STATRYRPTGENTITY sy-vline 
WA_IINSTRPGSTR6C_STR-STATRYRPTCATEGORY sy-vline 
WA_IINSTRPGSTR6C_STR-STATRYRPTRUNID sy-vline 
WA_IINSTRPGSTR6C_STR-TAXITEMGROUP sy-vline 
WA_IINSTRPGSTR6C_STR-BUSINESSPLACE sy-vline 
WA_IINSTRPGSTR6C_STR-TAXRATE sy-vline 
WA_IINSTRPGSTR6C_STR-POSTINGDATE sy-vline 
WA_IINSTRPGSTR6C_STR-DOCUMENTDATE sy-vline 
WA_IINSTRPGSTR6C_STR-DATEFORMAT sy-vline 
WA_IINSTRPGSTR6C_STR-TAXREPORTINGDATE sy-vline 
WA_IINSTRPGSTR6C_STR-DOCUMENTREFERENCEID sy-vline 
WA_IINSTRPGSTR6C_STR-IN_GSTIDENTIFICATIONNUMBER sy-vline 
WA_IINSTRPGSTR6C_STR-IN_GSTPLACEOFSUPPLY sy-vline 
WA_IINSTRPGSTR6C_STR-TAXBASEAMOUNTINCOCODECRCY sy-vline 
WA_IINSTRPGSTR6C_STR-AMOUNTINCOMPANYCODECURRENCY sy-vline 
WA_IINSTRPGSTR6C_STR-DEBITCREDITCODE sy-vline 
WA_IINSTRPGSTR6C_STR-TAXISNOTDEDUCTIBLE sy-vline 
WA_IINSTRPGSTR6C_STR-REPORTINGCURRENCY sy-vline 
WA_IINSTRPGSTR6C_STR-IN_GSTSECTION sy-vline 
WA_IINSTRPGSTR6C_STR-IN_GSTDOCUMENTTYPE sy-vline 
WA_IINSTRPGSTR6C_STR-IN_INTEGRATEDGSTAMOUNT sy-vline 
WA_IINSTRPGSTR6C_STR-IN_STATEGSTAMOUNT sy-vline 
WA_IINSTRPGSTR6C_STR-IN_CENTRALGSTAMOUNT sy-vline 
WA_IINSTRPGSTR6C_STR-IN_CESSGSTAMTINCOCODECRCY sy-vline 
WA_IINSTRPGSTR6C_STR-IN_GSTINPTSRVCDISTRDOCTYPE sy-vline 
WA_IINSTRPGSTR6C_STR-IN_GSTREGISTEREDTYPE sy-vline 
WA_IINSTRPGSTR6C_STR-IN_GSTLEGALSTATECODE sy-vline 
WA_IINSTRPGSTR6C_STR-ACCOUNTINGDOCEXTERNALREFERENCE sy-vline 
WA_IINSTRPGSTR6C_STR-DATEFORMATDESCRIPTION sy-vline      INTO ld_text SEPARATED BY SPACE.

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