ABAP Select data from SAP table /PRA/S_T9_DISPLAY_RPGDTE into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /PRA/S_T9_DISPLAY_RPGDTE 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 /PRA/S_T9_DISPLAY_RPGDTE. 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 /PRA/S_T9_DISPLAY_RPGDTE 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_/PRA/S_T9_DISPLAY_RPGDTE TYPE STANDARD TABLE OF /PRA/S_T9_DISPLAY_RPGDTE,
      WA_/PRA/S_T9_DISPLAY_RPGDTE TYPE /PRA/S_T9_DISPLAY_RPGDTE,
      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: </PRA/S_T9_DISPLAY_RPGDTE> TYPE /PRA/S_T9_DISPLAY_RPGDTE.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_/PRA/S_T9_DISPLAY_RPGDTE.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /PRA/S_T9_DISPLAY_RPGDTE
  INTO TABLE IT_/PRA/S_T9_DISPLAY_RPGDTE.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /PRA/S_T9_DISPLAY_RPGDTE
*  INTO TABLE @DATA(IT_/PRA/S_T9_DISPLAY_RPGDTE2).
*--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_/PRA/S_T9_DISPLAY_RPGDTE INDEX 1 INTO DATA(WA_/PRA/S_T9_DISPLAY_RPGDTE2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/PRA/S_T9_DISPLAY_RPGDTE ASSIGNING </PRA/S_T9_DISPLAY_RPGDTE>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</PRA/S_T9_DISPLAY_RPGDTE>-RUN_ID = 1.
</PRA/S_T9_DISPLAY_RPGDTE>-RPGDT_GUID = 1.
</PRA/S_T9_DISPLAY_RPGDTE>-RPT_COMPANY_NO = 1.
</PRA/S_T9_DISPLAY_RPGDTE>-REVENUE_ACCT_NO = 1.
</PRA/S_T9_DISPLAY_RPGDTE>-PARISH = 1.

ENDLOOP.

LOOP AT IT_/PRA/S_T9_DISPLAY_RPGDTE INTO WA_/PRA/S_T9_DISPLAY_RPGDTE.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/PRA/S_T9_DISPLAY_RPGDTE-TAXABLE_PERIOD, sy-vline,
  WA_/PRA/S_T9_DISPLAY_RPGDTE-TAX_RATE_CD, sy-vline,
  WA_/PRA/S_T9_DISPLAY_RPGDTE-FIELD_ID, sy-vline,
  WA_/PRA/S_T9_DISPLAY_RPGDTE-PROD_CD, sy-vline,
  WA_/PRA/S_T9_DISPLAY_RPGDTE-LEASE_NO, sy-vline,
  WA_/PRA/S_T9_DISPLAY_RPGDTE-PLANT_ID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/PRA/S_T9_DISPLAY_RPGDTE 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_/PRA/S_T9_DISPLAY_RPGDTE 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_/PRA/S_T9_DISPLAY_RPGDTE INTO WA_/PRA/S_T9_DISPLAY_RPGDTE.


*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_/PRA/S_T9_DISPLAY_RPGDTE_STR, 
RUN_ID TYPE STRING,
RPGDT_GUID TYPE STRING,
RPT_COMPANY_NO TYPE STRING,
REVENUE_ACCT_NO TYPE STRING,
PARISH TYPE STRING,
TAXABLE_PERIOD TYPE STRING,
TAX_RATE_CD TYPE STRING,
FIELD_ID TYPE STRING,
PROD_CD TYPE STRING,
LEASE_NO TYPE STRING,
PLANT_ID TYPE STRING,
REV_BOOK_ADJ_IND TYPE STRING,
TAXPAYER_CD TYPE STRING,
GROSS_GAS_PROD TYPE STRING,
TOTAL_EXCL_MCF TYPE STRING,
NET_TAXABLE_MCF TYPE STRING,
INTEREST TYPE STRING,
TOTAL_DUE TYPE STRING,
EXCLUSION_1_MCF TYPE STRING,
EXCLUSION_2_MCF TYPE STRING,
EXCLUSION_3_MCF TYPE STRING,
EXCLUSION_4_MCF TYPE STRING,
EXCLUSION_7_MCF TYPE STRING,
EXCLUSION_8_MCF TYPE STRING,
EXCLUSION_9_MCF TYPE STRING,
EXCLUSION_X_MCF TYPE STRING,
EXCLUSION_N_MCF TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/PRA/S_T9_DISPLAY_RPGDTE_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_/PRA/S_T9_DISPLAY_RPGDTE_STR-RUN_ID sy-vline 
WA_/PRA/S_T9_DISPLAY_RPGDTE_STR-RPGDT_GUID sy-vline 
WA_/PRA/S_T9_DISPLAY_RPGDTE_STR-RPT_COMPANY_NO sy-vline 
WA_/PRA/S_T9_DISPLAY_RPGDTE_STR-REVENUE_ACCT_NO sy-vline 
WA_/PRA/S_T9_DISPLAY_RPGDTE_STR-PARISH sy-vline 
WA_/PRA/S_T9_DISPLAY_RPGDTE_STR-TAXABLE_PERIOD sy-vline 
WA_/PRA/S_T9_DISPLAY_RPGDTE_STR-TAX_RATE_CD sy-vline 
WA_/PRA/S_T9_DISPLAY_RPGDTE_STR-FIELD_ID sy-vline 
WA_/PRA/S_T9_DISPLAY_RPGDTE_STR-PROD_CD sy-vline 
WA_/PRA/S_T9_DISPLAY_RPGDTE_STR-LEASE_NO sy-vline 
WA_/PRA/S_T9_DISPLAY_RPGDTE_STR-PLANT_ID sy-vline 
WA_/PRA/S_T9_DISPLAY_RPGDTE_STR-REV_BOOK_ADJ_IND sy-vline 
WA_/PRA/S_T9_DISPLAY_RPGDTE_STR-TAXPAYER_CD sy-vline 
WA_/PRA/S_T9_DISPLAY_RPGDTE_STR-GROSS_GAS_PROD sy-vline 
WA_/PRA/S_T9_DISPLAY_RPGDTE_STR-TOTAL_EXCL_MCF sy-vline 
WA_/PRA/S_T9_DISPLAY_RPGDTE_STR-NET_TAXABLE_MCF sy-vline 
WA_/PRA/S_T9_DISPLAY_RPGDTE_STR-INTEREST sy-vline 
WA_/PRA/S_T9_DISPLAY_RPGDTE_STR-TOTAL_DUE sy-vline 
WA_/PRA/S_T9_DISPLAY_RPGDTE_STR-EXCLUSION_1_MCF sy-vline 
WA_/PRA/S_T9_DISPLAY_RPGDTE_STR-EXCLUSION_2_MCF sy-vline 
WA_/PRA/S_T9_DISPLAY_RPGDTE_STR-EXCLUSION_3_MCF sy-vline 
WA_/PRA/S_T9_DISPLAY_RPGDTE_STR-EXCLUSION_4_MCF sy-vline 
WA_/PRA/S_T9_DISPLAY_RPGDTE_STR-EXCLUSION_7_MCF sy-vline 
WA_/PRA/S_T9_DISPLAY_RPGDTE_STR-EXCLUSION_8_MCF sy-vline 
WA_/PRA/S_T9_DISPLAY_RPGDTE_STR-EXCLUSION_9_MCF sy-vline 
WA_/PRA/S_T9_DISPLAY_RPGDTE_STR-EXCLUSION_X_MCF sy-vline 
WA_/PRA/S_T9_DISPLAY_RPGDTE_STR-EXCLUSION_N_MCF sy-vline      INTO ld_text SEPARATED BY SPACE.

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