ABAP Select data from SAP table RERAC_OP_ACT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RERAC_OP_ACT
*  INTO TABLE @DATA(IT_RERAC_OP_ACT2).
*--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_RERAC_OP_ACT INDEX 1 INTO DATA(WA_RERAC_OP_ACT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RERAC_OP_ACT>-MANDT = 1.
<RERAC_OP_ACT>-OPACT = 1.
<RERAC_OP_ACT>-ISACTIVE = 1.
<RERAC_OP_ACT>-OPACTGROUP = 1.
<RERAC_OP_ACT>-PDATEDEDUCT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RERAC_OP_ACT-DUEDATEDEDUCT, sy-vline,
  WA_RERAC_OP_ACT-OBJECTENTRY, sy-vline,
  WA_RERAC_OP_ACT-HASCUSTOMER, sy-vline,
  WA_RERAC_OP_ACT-CUSTDEDUCT, sy-vline,
  WA_RERAC_OP_ACT-HASVENDOR, sy-vline,
  WA_RERAC_OP_ACT-VENDDEDUCT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RERAC_OP_ACT 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_RERAC_OP_ACT 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_RERAC_OP_ACT INTO WA_RERAC_OP_ACT.


*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_RERAC_OP_ACT_STR, 
MANDT TYPE STRING,
OPACT TYPE STRING,
ISACTIVE TYPE STRING,
OPACTGROUP TYPE STRING,
PDATEDEDUCT TYPE STRING,
DUEDATEDEDUCT TYPE STRING,
OBJECTENTRY TYPE STRING,
HASCUSTOMER TYPE STRING,
CUSTDEDUCT TYPE STRING,
HASVENDOR TYPE STRING,
VENDDEDUCT TYPE STRING,
SHSTRATVEND TYPE STRING,
INPUTPARTNER TYPE STRING,
HEADERTXT TYPE STRING,
GETCCDEFAULT TYPE STRING,
ISVALIDDEFCC TYPE STRING,
ISVALIDMGCC TYPE STRING,
ISVALIDCRCC TYPE STRING,
ISVALIDMNCC TYPE STRING,
ISVALIDCOACC TYPE STRING,
AMOUNT TYPE STRING,
CURRENCY TYPE STRING,
ALVVARIANT TYPE STRING,
PROCTDNAME TYPE STRING,
HOUSEBKID TYPE STRING,
BANKACCTID TYPE STRING,
TAXTYPEOPT TYPE STRING,
TAXGROUPOPT TYPE STRING,
TAXTYPENOOPT TYPE STRING,
TAXGROUPNOOPT TYPE STRING,
FSVARIANTBD TYPE STRING,
NETAMOUNTENTRY TYPE STRING,
SUPPRESSPOP TYPE STRING,
DISPLAYHEADER TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RERAC_OP_ACT_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_RERAC_OP_ACT_STR-MANDT sy-vline 
WA_RERAC_OP_ACT_STR-OPACT sy-vline 
WA_RERAC_OP_ACT_STR-ISACTIVE sy-vline 
WA_RERAC_OP_ACT_STR-OPACTGROUP sy-vline 
WA_RERAC_OP_ACT_STR-PDATEDEDUCT sy-vline 
WA_RERAC_OP_ACT_STR-DUEDATEDEDUCT sy-vline 
WA_RERAC_OP_ACT_STR-OBJECTENTRY sy-vline 
WA_RERAC_OP_ACT_STR-HASCUSTOMER sy-vline 
WA_RERAC_OP_ACT_STR-CUSTDEDUCT sy-vline 
WA_RERAC_OP_ACT_STR-HASVENDOR sy-vline 
WA_RERAC_OP_ACT_STR-VENDDEDUCT sy-vline 
WA_RERAC_OP_ACT_STR-SHSTRATVEND sy-vline 
WA_RERAC_OP_ACT_STR-INPUTPARTNER sy-vline 
WA_RERAC_OP_ACT_STR-HEADERTXT sy-vline 
WA_RERAC_OP_ACT_STR-GETCCDEFAULT sy-vline 
WA_RERAC_OP_ACT_STR-ISVALIDDEFCC sy-vline 
WA_RERAC_OP_ACT_STR-ISVALIDMGCC sy-vline 
WA_RERAC_OP_ACT_STR-ISVALIDCRCC sy-vline 
WA_RERAC_OP_ACT_STR-ISVALIDMNCC sy-vline 
WA_RERAC_OP_ACT_STR-ISVALIDCOACC sy-vline 
WA_RERAC_OP_ACT_STR-AMOUNT sy-vline 
WA_RERAC_OP_ACT_STR-CURRENCY sy-vline 
WA_RERAC_OP_ACT_STR-ALVVARIANT sy-vline 
WA_RERAC_OP_ACT_STR-PROCTDNAME sy-vline 
WA_RERAC_OP_ACT_STR-HOUSEBKID sy-vline 
WA_RERAC_OP_ACT_STR-BANKACCTID sy-vline 
WA_RERAC_OP_ACT_STR-TAXTYPEOPT sy-vline 
WA_RERAC_OP_ACT_STR-TAXGROUPOPT sy-vline 
WA_RERAC_OP_ACT_STR-TAXTYPENOOPT sy-vline 
WA_RERAC_OP_ACT_STR-TAXGROUPNOOPT sy-vline 
WA_RERAC_OP_ACT_STR-FSVARIANTBD sy-vline 
WA_RERAC_OP_ACT_STR-NETAMOUNTENTRY sy-vline 
WA_RERAC_OP_ACT_STR-SUPPRESSPOP sy-vline 
WA_RERAC_OP_ACT_STR-DISPLAYHEADER sy-vline      INTO ld_text SEPARATED BY SPACE.

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