ABAP Select data from SAP table CRECCNDOGASTRM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CRECCNDOGASTRM
*  INTO TABLE @DATA(IT_CRECCNDOGASTRM2).
*--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_CRECCNDOGASTRM INDEX 1 INTO DATA(WA_CRECCNDOGASTRM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CRECCNDOGASTRM>-MANDT = 1.
<CRECCNDOGASTRM>-INTERNALREALESTATENUMBER = 1.
<CRECCNDOGASTRM>-RETERMTYPE = 1.
<CRECCNDOGASTRM>-RETERMNUMBER = 1.
<CRECCNDOGASTRM>-VALIDITYSTARTENDDATEVALUE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CRECCNDOGASTRM-VALIDITYSTARTDATE, sy-vline,
  WA_CRECCNDOGASTRM-RETERMNAME, sy-vline,
  WA_CRECCNDOGASTRM-REALESTATEOBJECTTYPE, sy-vline,
  WA_CRECCNDOGASTRM-REIDENTIFICATIONKEY, sy-vline,
  WA_CRECCNDOGASTRM-VALIDITYENDDATE, sy-vline,
  WA_CRECCNDOGASTRM-BUSINESSAREA, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CRECCNDOGASTRM 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_CRECCNDOGASTRM 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_CRECCNDOGASTRM INTO WA_CRECCNDOGASTRM.


*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 RETERMNUMBER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CRECCNDOGASTRM-RETERMNUMBER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRECCNDOGASTRM-RETERMNUMBER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PROFITCENTER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CRECCNDOGASTRM-PROFITCENTER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRECCNDOGASTRM-PROFITCENTER.
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_CRECCNDOGASTRM_STR, 
MANDT TYPE STRING,
INTERNALREALESTATENUMBER TYPE STRING,
RETERMTYPE TYPE STRING,
RETERMNUMBER TYPE STRING,
VALIDITYSTARTENDDATEVALUE TYPE STRING,
VALIDITYSTARTDATE TYPE STRING,
RETERMNAME TYPE STRING,
REALESTATEOBJECTTYPE TYPE STRING,
REIDENTIFICATIONKEY TYPE STRING,
VALIDITYENDDATE TYPE STRING,
BUSINESSAREA TYPE STRING,
PROFITCENTER TYPE STRING,
RESTATUSOBJECT TYPE STRING,
TAXJURISDICTION TYPE STRING,
FUND TYPE STRING,
FUNDSCENTER TYPE STRING,
FUNCTIONALAREA TYPE STRING,
BUDGETPERIOD TYPE STRING,
CONTROLLINGAREA TYPE STRING,
TAXCALCULATIONPROCEDURE TYPE STRING,
FINANCIALMANAGEMENTAREA TYPE STRING,
REENTRYVALIDITY TYPE STRING,
REENTRYVALIDITYCRITICALITY TYPE STRING,
RETERMTYPENAME TYPE STRING,
REALESTATEOBJECTTYPENAME TYPE STRING,
BUSINESSAREANAME TYPE STRING,
PROFITCENTERLONGNAME TYPE STRING,
TAXJURISDICTIONNAME TYPE STRING,
FUNDNAME TYPE STRING,
FUNCTIONALAREANAME TYPE STRING,
BUDGETPERIODNAME TYPE STRING,
REENTRYVALIDITYTEXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CRECCNDOGASTRM_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_CRECCNDOGASTRM_STR-MANDT sy-vline 
WA_CRECCNDOGASTRM_STR-INTERNALREALESTATENUMBER sy-vline 
WA_CRECCNDOGASTRM_STR-RETERMTYPE sy-vline 
WA_CRECCNDOGASTRM_STR-RETERMNUMBER sy-vline 
WA_CRECCNDOGASTRM_STR-VALIDITYSTARTENDDATEVALUE sy-vline 
WA_CRECCNDOGASTRM_STR-VALIDITYSTARTDATE sy-vline 
WA_CRECCNDOGASTRM_STR-RETERMNAME sy-vline 
WA_CRECCNDOGASTRM_STR-REALESTATEOBJECTTYPE sy-vline 
WA_CRECCNDOGASTRM_STR-REIDENTIFICATIONKEY sy-vline 
WA_CRECCNDOGASTRM_STR-VALIDITYENDDATE sy-vline 
WA_CRECCNDOGASTRM_STR-BUSINESSAREA sy-vline 
WA_CRECCNDOGASTRM_STR-PROFITCENTER sy-vline 
WA_CRECCNDOGASTRM_STR-RESTATUSOBJECT sy-vline 
WA_CRECCNDOGASTRM_STR-TAXJURISDICTION sy-vline 
WA_CRECCNDOGASTRM_STR-FUND sy-vline 
WA_CRECCNDOGASTRM_STR-FUNDSCENTER sy-vline 
WA_CRECCNDOGASTRM_STR-FUNCTIONALAREA sy-vline 
WA_CRECCNDOGASTRM_STR-BUDGETPERIOD sy-vline 
WA_CRECCNDOGASTRM_STR-CONTROLLINGAREA sy-vline 
WA_CRECCNDOGASTRM_STR-TAXCALCULATIONPROCEDURE sy-vline 
WA_CRECCNDOGASTRM_STR-FINANCIALMANAGEMENTAREA sy-vline 
WA_CRECCNDOGASTRM_STR-REENTRYVALIDITY sy-vline 
WA_CRECCNDOGASTRM_STR-REENTRYVALIDITYCRITICALITY sy-vline 
WA_CRECCNDOGASTRM_STR-RETERMTYPENAME sy-vline 
WA_CRECCNDOGASTRM_STR-REALESTATEOBJECTTYPENAME sy-vline 
WA_CRECCNDOGASTRM_STR-BUSINESSAREANAME sy-vline 
WA_CRECCNDOGASTRM_STR-PROFITCENTERLONGNAME sy-vline 
WA_CRECCNDOGASTRM_STR-TAXJURISDICTIONNAME sy-vline 
WA_CRECCNDOGASTRM_STR-FUNDNAME sy-vline 
WA_CRECCNDOGASTRM_STR-FUNCTIONALAREANAME sy-vline 
WA_CRECCNDOGASTRM_STR-BUDGETPERIODNAME sy-vline 
WA_CRECCNDOGASTRM_STR-REENTRYVALIDITYTEXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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