ABAP Select data from SAP table PRA_S_WY_OG001_PDF_HDR 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_WY_OG001_PDF_HDR 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_WY_OG001_PDF_HDR. 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_WY_OG001_PDF_HDR 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_WY_OG001_PDF_HDR TYPE STANDARD TABLE OF PRA_S_WY_OG001_PDF_HDR,
      WA_PRA_S_WY_OG001_PDF_HDR TYPE PRA_S_WY_OG001_PDF_HDR,
      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_WY_OG001_PDF_HDR> TYPE PRA_S_WY_OG001_PDF_HDR.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PRA_S_WY_OG001_PDF_HDR.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PRA_S_WY_OG001_PDF_HDR
  INTO TABLE IT_PRA_S_WY_OG001_PDF_HDR.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PRA_S_WY_OG001_PDF_HDR
*  INTO TABLE @DATA(IT_PRA_S_WY_OG001_PDF_HDR2).
*--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_WY_OG001_PDF_HDR INDEX 1 INTO DATA(WA_PRA_S_WY_OG001_PDF_HDR2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PRA_S_WY_OG001_PDF_HDR ASSIGNING <PRA_S_WY_OG001_PDF_HDR>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PRA_S_WY_OG001_PDF_HDR>-RUN_ID = 1.
<PRA_S_WY_OG001_PDF_HDR>-TAXPAYER_NUMBER = 1.
<PRA_S_WY_OG001_PDF_HDR>-TAXPAYER_NAME = 1.
<PRA_S_WY_OG001_PDF_HDR>-ADDRESS_LINE1 = 1.
<PRA_S_WY_OG001_PDF_HDR>-ADDRESS_LINE2 = 1.

ENDLOOP.

LOOP AT IT_PRA_S_WY_OG001_PDF_HDR INTO WA_PRA_S_WY_OG001_PDF_HDR.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PRA_S_WY_OG001_PDF_HDR-OIL_GAS_INDICATOR, sy-vline,
  WA_PRA_S_WY_OG001_PDF_HDR-REPORT_FREQUENCY, sy-vline,
  WA_PRA_S_WY_OG001_PDF_HDR-RPT_DT, sy-vline,
  WA_PRA_S_WY_OG001_PDF_HDR-PRODUCTION_PRD, sy-vline,
  WA_PRA_S_WY_OG001_PDF_HDR-PERIOD_ENDING, sy-vline,
  WA_PRA_S_WY_OG001_PDF_HDR-CONTACT_PHONE_NO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PRA_S_WY_OG001_PDF_HDR 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_WY_OG001_PDF_HDR 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_WY_OG001_PDF_HDR INTO WA_PRA_S_WY_OG001_PDF_HDR.


*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 PERI, internal->external for field RPT_DT
CALL FUNCTION 'CONVERSION_EXIT_PERI_OUTPUT'
  EXPORTING
    input =                      WA_PRA_S_WY_OG001_PDF_HDR-RPT_DT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PRA_S_WY_OG001_PDF_HDR-RPT_DT.
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_S_WY_OG001_PDF_HDR_STR, 
RUN_ID TYPE STRING,
TAXPAYER_NUMBER TYPE STRING,
TAXPAYER_NAME TYPE STRING,
ADDRESS_LINE1 TYPE STRING,
ADDRESS_LINE2 TYPE STRING,
OIL_GAS_INDICATOR TYPE STRING,
REPORT_FREQUENCY TYPE STRING,
RPT_DT TYPE STRING,
PRODUCTION_PRD TYPE STRING,
PERIOD_ENDING TYPE STRING,
CONTACT_PHONE_NO TYPE STRING,
CONTACT_EMAIL TYPE STRING,
TAX_RATE_OIL TYPE STRING,
TAX_RATE_GAS TYPE STRING,
TAX_RATE_NGL TYPE STRING,
PG_GROSS_VOL_OIL TYPE STRING,
PG_GROSS_VOL_GAS TYPE STRING,
PG_EXEMPT_VOL_OIL TYPE STRING,
PG_EXEMPT_VOL_GAS TYPE STRING,
PG_PLANT_SHRINK_VOL TYPE STRING,
PG_TAX_VOL_OIL TYPE STRING,
PG_TAX_VOL_GAS TYPE STRING,
PG_TAX_VOL_NGL TYPE STRING,
PG_TAX_VAL_OIL TYPE STRING,
PG_TAX_VAL_GAS TYPE STRING,
PG_TAX_VAL_NGL TYPE STRING,
TOT_TAX_VAL_OIL TYPE STRING,
TOT_TAX_VAL_GAS TYPE STRING,
TOT_TAX_VAL_NGL TYPE STRING,
NET_TAX_VAL_OIL TYPE STRING,
NET_TAX_VAL_GAS TYPE STRING,
NET_TAX_VAL_NGL TYPE STRING,
TAX_DUE_OIL TYPE STRING,
TAX_DUE_GAS TYPE STRING,
TAX_DUE_NGL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PRA_S_WY_OG001_PDF_HDR_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_WY_OG001_PDF_HDR_STR-RUN_ID sy-vline 
WA_PRA_S_WY_OG001_PDF_HDR_STR-TAXPAYER_NUMBER sy-vline 
WA_PRA_S_WY_OG001_PDF_HDR_STR-TAXPAYER_NAME sy-vline 
WA_PRA_S_WY_OG001_PDF_HDR_STR-ADDRESS_LINE1 sy-vline 
WA_PRA_S_WY_OG001_PDF_HDR_STR-ADDRESS_LINE2 sy-vline 
WA_PRA_S_WY_OG001_PDF_HDR_STR-OIL_GAS_INDICATOR sy-vline 
WA_PRA_S_WY_OG001_PDF_HDR_STR-REPORT_FREQUENCY sy-vline 
WA_PRA_S_WY_OG001_PDF_HDR_STR-RPT_DT sy-vline 
WA_PRA_S_WY_OG001_PDF_HDR_STR-PRODUCTION_PRD sy-vline 
WA_PRA_S_WY_OG001_PDF_HDR_STR-PERIOD_ENDING sy-vline 
WA_PRA_S_WY_OG001_PDF_HDR_STR-CONTACT_PHONE_NO sy-vline 
WA_PRA_S_WY_OG001_PDF_HDR_STR-CONTACT_EMAIL sy-vline 
WA_PRA_S_WY_OG001_PDF_HDR_STR-TAX_RATE_OIL sy-vline 
WA_PRA_S_WY_OG001_PDF_HDR_STR-TAX_RATE_GAS sy-vline 
WA_PRA_S_WY_OG001_PDF_HDR_STR-TAX_RATE_NGL sy-vline 
WA_PRA_S_WY_OG001_PDF_HDR_STR-PG_GROSS_VOL_OIL sy-vline 
WA_PRA_S_WY_OG001_PDF_HDR_STR-PG_GROSS_VOL_GAS sy-vline 
WA_PRA_S_WY_OG001_PDF_HDR_STR-PG_EXEMPT_VOL_OIL sy-vline 
WA_PRA_S_WY_OG001_PDF_HDR_STR-PG_EXEMPT_VOL_GAS sy-vline 
WA_PRA_S_WY_OG001_PDF_HDR_STR-PG_PLANT_SHRINK_VOL sy-vline 
WA_PRA_S_WY_OG001_PDF_HDR_STR-PG_TAX_VOL_OIL sy-vline 
WA_PRA_S_WY_OG001_PDF_HDR_STR-PG_TAX_VOL_GAS sy-vline 
WA_PRA_S_WY_OG001_PDF_HDR_STR-PG_TAX_VOL_NGL sy-vline 
WA_PRA_S_WY_OG001_PDF_HDR_STR-PG_TAX_VAL_OIL sy-vline 
WA_PRA_S_WY_OG001_PDF_HDR_STR-PG_TAX_VAL_GAS sy-vline 
WA_PRA_S_WY_OG001_PDF_HDR_STR-PG_TAX_VAL_NGL sy-vline 
WA_PRA_S_WY_OG001_PDF_HDR_STR-TOT_TAX_VAL_OIL sy-vline 
WA_PRA_S_WY_OG001_PDF_HDR_STR-TOT_TAX_VAL_GAS sy-vline 
WA_PRA_S_WY_OG001_PDF_HDR_STR-TOT_TAX_VAL_NGL sy-vline 
WA_PRA_S_WY_OG001_PDF_HDR_STR-NET_TAX_VAL_OIL sy-vline 
WA_PRA_S_WY_OG001_PDF_HDR_STR-NET_TAX_VAL_GAS sy-vline 
WA_PRA_S_WY_OG001_PDF_HDR_STR-NET_TAX_VAL_NGL sy-vline 
WA_PRA_S_WY_OG001_PDF_HDR_STR-TAX_DUE_OIL sy-vline 
WA_PRA_S_WY_OG001_PDF_HDR_STR-TAX_DUE_GAS sy-vline 
WA_PRA_S_WY_OG001_PDF_HDR_STR-TAX_DUE_NGL sy-vline      INTO ld_text SEPARATED BY SPACE.

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