ABAP Select data from SAP table /PRA/T9_RPO2DT into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /PRA/T9_RPO2DT 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/T9_RPO2DT. 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/T9_RPO2DT 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/T9_RPO2DT TYPE STANDARD TABLE OF /PRA/T9_RPO2DT,
      WA_/PRA/T9_RPO2DT TYPE /PRA/T9_RPO2DT,
      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/T9_RPO2DT> TYPE /PRA/T9_RPO2DT.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_/PRA/T9_RPO2DT.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /PRA/T9_RPO2DT
  INTO TABLE IT_/PRA/T9_RPO2DT.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /PRA/T9_RPO2DT
*  INTO TABLE @DATA(IT_/PRA/T9_RPO2DT2).
*--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/T9_RPO2DT INDEX 1 INTO DATA(WA_/PRA/T9_RPO2DT2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/PRA/T9_RPO2DT ASSIGNING </PRA/T9_RPO2DT>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</PRA/T9_RPO2DT>-MANDT = 1.
</PRA/T9_RPO2DT>-RUN_ID = 1.
</PRA/T9_RPO2DT>-RPO2DT_GUID = 1.
</PRA/T9_RPO2DT>-WL_NO = 1.
</PRA/T9_RPO2DT>-WC_NO = 1.

ENDLOOP.

LOOP AT IT_/PRA/T9_RPO2DT INTO WA_/PRA/T9_RPO2DT.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/PRA/T9_RPO2DT-RPT_COMPANY_NO, sy-vline,
  WA_/PRA/T9_RPO2DT-REVENUE_ACCT_NO, sy-vline,
  WA_/PRA/T9_RPO2DT-PARISH, sy-vline,
  WA_/PRA/T9_RPO2DT-TAXABLE_PERIOD, sy-vline,
  WA_/PRA/T9_RPO2DT-WELL_NO, sy-vline,
  WA_/PRA/T9_RPO2DT-FIELD_ID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/PRA/T9_RPO2DT 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/T9_RPO2DT 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/T9_RPO2DT INTO WA_/PRA/T9_RPO2DT.


*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 WL_NO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/PRA/T9_RPO2DT-WL_NO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/PRA/T9_RPO2DT-WL_NO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field WC_NO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/PRA/T9_RPO2DT-WC_NO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/PRA/T9_RPO2DT-WC_NO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTPS, internal->external for field CHANGE_TIMESTAMP
CALL FUNCTION 'CONVERSION_EXIT_TSTPS_OUTPUT'
  EXPORTING
    input =                      WA_/PRA/T9_RPO2DT-CHANGE_TIMESTAMP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/PRA/T9_RPO2DT-CHANGE_TIMESTAMP.
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_/PRA/T9_RPO2DT_STR, 
MANDT TYPE STRING,
RUN_ID TYPE STRING,
RPO2DT_GUID TYPE STRING,
WL_NO TYPE STRING,
WC_NO TYPE STRING,
RPT_COMPANY_NO TYPE STRING,
REVENUE_ACCT_NO TYPE STRING,
PARISH TYPE STRING,
TAXABLE_PERIOD TYPE STRING,
WELL_NO TYPE STRING,
FIELD_ID TYPE STRING,
PROD_CD TYPE STRING,
LEASE_NO TYPE STRING,
SERIAL_NO TYPE STRING,
TAXPAYER_CD TYPE STRING,
CERTIFICATION_CD TYPE STRING,
OPENING_STOCK TYPE STRING,
PRODUCTION TYPE STRING,
PROD_DAYS TYPE STRING,
AVG_DAILY_PROD TYPE STRING,
PERCENT_SW_PROD TYPE STRING,
CAPABLE_WL_CNT TYPE STRING,
INCAPABLE_WL_CNT TYPE STRING,
STRIPPER_WL_CNT TYPE STRING,
VERIFIED_FL TYPE STRING,
CAPABLE_FL TYPE STRING,
RPODT_GUID TYPE STRING,
TAX_RATE_CD TYPE STRING,
SCHEDULE_CD TYPE STRING,
CONTINUITY_CD TYPE STRING,
CHANGE_USER TYPE STRING,
CHANGE_TIMESTAMP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/PRA/T9_RPO2DT_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/T9_RPO2DT_STR-MANDT sy-vline 
WA_/PRA/T9_RPO2DT_STR-RUN_ID sy-vline 
WA_/PRA/T9_RPO2DT_STR-RPO2DT_GUID sy-vline 
WA_/PRA/T9_RPO2DT_STR-WL_NO sy-vline 
WA_/PRA/T9_RPO2DT_STR-WC_NO sy-vline 
WA_/PRA/T9_RPO2DT_STR-RPT_COMPANY_NO sy-vline 
WA_/PRA/T9_RPO2DT_STR-REVENUE_ACCT_NO sy-vline 
WA_/PRA/T9_RPO2DT_STR-PARISH sy-vline 
WA_/PRA/T9_RPO2DT_STR-TAXABLE_PERIOD sy-vline 
WA_/PRA/T9_RPO2DT_STR-WELL_NO sy-vline 
WA_/PRA/T9_RPO2DT_STR-FIELD_ID sy-vline 
WA_/PRA/T9_RPO2DT_STR-PROD_CD sy-vline 
WA_/PRA/T9_RPO2DT_STR-LEASE_NO sy-vline 
WA_/PRA/T9_RPO2DT_STR-SERIAL_NO sy-vline 
WA_/PRA/T9_RPO2DT_STR-TAXPAYER_CD sy-vline 
WA_/PRA/T9_RPO2DT_STR-CERTIFICATION_CD sy-vline 
WA_/PRA/T9_RPO2DT_STR-OPENING_STOCK sy-vline 
WA_/PRA/T9_RPO2DT_STR-PRODUCTION sy-vline 
WA_/PRA/T9_RPO2DT_STR-PROD_DAYS sy-vline 
WA_/PRA/T9_RPO2DT_STR-AVG_DAILY_PROD sy-vline 
WA_/PRA/T9_RPO2DT_STR-PERCENT_SW_PROD sy-vline 
WA_/PRA/T9_RPO2DT_STR-CAPABLE_WL_CNT sy-vline 
WA_/PRA/T9_RPO2DT_STR-INCAPABLE_WL_CNT sy-vline 
WA_/PRA/T9_RPO2DT_STR-STRIPPER_WL_CNT sy-vline 
WA_/PRA/T9_RPO2DT_STR-VERIFIED_FL sy-vline 
WA_/PRA/T9_RPO2DT_STR-CAPABLE_FL sy-vline 
WA_/PRA/T9_RPO2DT_STR-RPODT_GUID sy-vline 
WA_/PRA/T9_RPO2DT_STR-TAX_RATE_CD sy-vline 
WA_/PRA/T9_RPO2DT_STR-SCHEDULE_CD sy-vline 
WA_/PRA/T9_RPO2DT_STR-CONTINUITY_CD sy-vline 
WA_/PRA/T9_RPO2DT_STR-CHANGE_USER sy-vline 
WA_/PRA/T9_RPO2DT_STR-CHANGE_TIMESTAMP sy-vline      INTO ld_text SEPARATED BY SPACE.

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