ABAP Select data from SAP table RERA_OPACT_HEADER into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RERA_OPACT_HEADER
*  INTO TABLE @DATA(IT_RERA_OPACT_HEADER2).
*--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_RERA_OPACT_HEADER INDEX 1 INTO DATA(WA_RERA_OPACT_HEADER2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RERA_OPACT_HEADER>-OPACT = 1.
<RERA_OPACT_HEADER>-HEADERNO = 1.
<RERA_OPACT_HEADER>-BUKRS = 1.
<RERA_OPACT_HEADER>-DOCDATE = 1.
<RERA_OPACT_HEADER>-FISC_YEAR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RERA_OPACT_HEADER-PSTNGDATE, sy-vline,
  WA_RERA_OPACT_HEADER-PSTNGPERIOD, sy-vline,
  WA_RERA_OPACT_HEADER-DOCTYPE, sy-vline,
  WA_RERA_OPACT_HEADER-HEADERTXT, sy-vline,
  WA_RERA_OPACT_HEADER-EXTREFERENCENO, sy-vline,
  WA_RERA_OPACT_HEADER-CURRENCY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RERA_OPACT_HEADER 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_RERA_OPACT_HEADER 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_RERA_OPACT_HEADER INTO WA_RERA_OPACT_HEADER.


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

*Conversion exit EXCRT, internal->external for field CONVERSIONRATE
CALL FUNCTION 'CONVERSION_EXIT_EXCRT_OUTPUT'
  EXPORTING
    input =                      WA_RERA_OPACT_HEADER-CONVERSIONRATE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RERA_OPACT_HEADER-CONVERSIONRATE.
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_RERA_OPACT_HEADER_STR, 
OPACT TYPE STRING,
HEADERNO TYPE STRING,
BUKRS TYPE STRING,
DOCDATE TYPE STRING,
FISC_YEAR TYPE STRING,
PSTNGDATE TYPE STRING,
PSTNGPERIOD TYPE STRING,
DOCTYPE TYPE STRING,
HEADERTXT TYPE STRING,
EXTREFERENCENO TYPE STRING,
CURRENCY TYPE STRING,
CCTXT TYPE STRING,
PSTNGPROCEDURE TYPE STRING,
CONVERSIONRATE TYPE STRING,
CONVERSIONDATE TYPE STRING,
CCDEDUCT TYPE STRING,
HASCPD TYPE STRING,
REFERENCEDOCGUID TYPE STRING,
TAXDATE TYPE STRING,
NAME TYPE STRING,
NAME_2 TYPE STRING,
NAME_3 TYPE STRING,
NAME_4 TYPE STRING,
POSTL_CODE TYPE STRING,
CITY TYPE STRING,
COUNTRY TYPE STRING,
COUNTRY_ISO TYPE STRING,
STREET TYPE STRING,
PO_BOX TYPE STRING,
POBX_PCD TYPE STRING,
POBK_CURAC TYPE STRING,
BANK_ACCT TYPE STRING,
BANK_NO TYPE STRING,
BANK_CTRY TYPE STRING,
BANK_CTRY_ISO TYPE STRING,
TAX_NO_1 TYPE STRING,
TAX_NO_2 TYPE STRING,
TAX TYPE STRING,
EQUAL_TAX TYPE STRING,
REGION TYPE STRING,
CTRL_KEY TYPE STRING,
INSTR_KEY TYPE STRING,
DME_IND TYPE STRING,
LANGU_ISO TYPE STRING,
IBAN TYPE STRING,
SWIFT_CODE TYPE STRING,
IBAN_ICON TYPE STRING,
XBPNAME_OLD TYPE STRING,
DOCDATE_OLD TYPE STRING,
EXTREFERENCENO_OLD TYPE STRING,
BLINEDATE_OLD TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RERA_OPACT_HEADER_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_RERA_OPACT_HEADER_STR-OPACT sy-vline 
WA_RERA_OPACT_HEADER_STR-HEADERNO sy-vline 
WA_RERA_OPACT_HEADER_STR-BUKRS sy-vline 
WA_RERA_OPACT_HEADER_STR-DOCDATE sy-vline 
WA_RERA_OPACT_HEADER_STR-FISC_YEAR sy-vline 
WA_RERA_OPACT_HEADER_STR-PSTNGDATE sy-vline 
WA_RERA_OPACT_HEADER_STR-PSTNGPERIOD sy-vline 
WA_RERA_OPACT_HEADER_STR-DOCTYPE sy-vline 
WA_RERA_OPACT_HEADER_STR-HEADERTXT sy-vline 
WA_RERA_OPACT_HEADER_STR-EXTREFERENCENO sy-vline 
WA_RERA_OPACT_HEADER_STR-CURRENCY sy-vline 
WA_RERA_OPACT_HEADER_STR-CCTXT sy-vline 
WA_RERA_OPACT_HEADER_STR-PSTNGPROCEDURE sy-vline 
WA_RERA_OPACT_HEADER_STR-CONVERSIONRATE sy-vline 
WA_RERA_OPACT_HEADER_STR-CONVERSIONDATE sy-vline 
WA_RERA_OPACT_HEADER_STR-CCDEDUCT sy-vline 
WA_RERA_OPACT_HEADER_STR-HASCPD sy-vline 
WA_RERA_OPACT_HEADER_STR-REFERENCEDOCGUID sy-vline 
WA_RERA_OPACT_HEADER_STR-TAXDATE sy-vline 
WA_RERA_OPACT_HEADER_STR-NAME sy-vline 
WA_RERA_OPACT_HEADER_STR-NAME_2 sy-vline 
WA_RERA_OPACT_HEADER_STR-NAME_3 sy-vline 
WA_RERA_OPACT_HEADER_STR-NAME_4 sy-vline 
WA_RERA_OPACT_HEADER_STR-POSTL_CODE sy-vline 
WA_RERA_OPACT_HEADER_STR-CITY sy-vline 
WA_RERA_OPACT_HEADER_STR-COUNTRY sy-vline 
WA_RERA_OPACT_HEADER_STR-COUNTRY_ISO sy-vline 
WA_RERA_OPACT_HEADER_STR-STREET sy-vline 
WA_RERA_OPACT_HEADER_STR-PO_BOX sy-vline 
WA_RERA_OPACT_HEADER_STR-POBX_PCD sy-vline 
WA_RERA_OPACT_HEADER_STR-POBK_CURAC sy-vline 
WA_RERA_OPACT_HEADER_STR-BANK_ACCT sy-vline 
WA_RERA_OPACT_HEADER_STR-BANK_NO sy-vline 
WA_RERA_OPACT_HEADER_STR-BANK_CTRY sy-vline 
WA_RERA_OPACT_HEADER_STR-BANK_CTRY_ISO sy-vline 
WA_RERA_OPACT_HEADER_STR-TAX_NO_1 sy-vline 
WA_RERA_OPACT_HEADER_STR-TAX_NO_2 sy-vline 
WA_RERA_OPACT_HEADER_STR-TAX sy-vline 
WA_RERA_OPACT_HEADER_STR-EQUAL_TAX sy-vline 
WA_RERA_OPACT_HEADER_STR-REGION sy-vline 
WA_RERA_OPACT_HEADER_STR-CTRL_KEY sy-vline 
WA_RERA_OPACT_HEADER_STR-INSTR_KEY sy-vline 
WA_RERA_OPACT_HEADER_STR-DME_IND sy-vline 
WA_RERA_OPACT_HEADER_STR-LANGU_ISO sy-vline 
WA_RERA_OPACT_HEADER_STR-IBAN sy-vline 
WA_RERA_OPACT_HEADER_STR-SWIFT_CODE sy-vline 
WA_RERA_OPACT_HEADER_STR-IBAN_ICON sy-vline 
WA_RERA_OPACT_HEADER_STR-XBPNAME_OLD sy-vline 
WA_RERA_OPACT_HEADER_STR-DOCDATE_OLD sy-vline 
WA_RERA_OPACT_HEADER_STR-EXTREFERENCENO_OLD sy-vline 
WA_RERA_OPACT_HEADER_STR-BLINEDATE_OLD sy-vline      INTO ld_text SEPARATED BY SPACE.

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