ABAP Select data from SAP table RCRDTACCTRELTP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RCRDTACCTRELTP
*  INTO TABLE @DATA(IT_RCRDTACCTRELTP2).
*--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_RCRDTACCTRELTP INDEX 1 INTO DATA(WA_RCRDTACCTRELTP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RCRDTACCTRELTP>-MANDT = 1.
<RCRDTACCTRELTP>-CRDTMGMTBPHIERARCHYNODE = 1.
<RCRDTACCTRELTP>-BUSINESSPARTNER = 1.
<RCRDTACCTRELTP>-CREDITSEGMENT = 1.
<RCRDTACCTRELTP>-CRDTMGMTBPHIERARCHYPARENTNODE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RCRDTACCTRELTP-CRDTMHIGHERLEVELBUSPARTNER, sy-vline,
  WA_RCRDTACCTRELTP-BUSINESSPARTNERISSELECTED, sy-vline,
  WA_RCRDTACCTRELTP-ACTIVEBUSINESSPARTNER, sy-vline,
  WA_RCRDTACCTRELTP-HIERARCHYLEVEL, sy-vline,
  WA_RCRDTACCTRELTP-HIERARCHYDRILLSTATE, sy-vline,
  WA_RCRDTACCTRELTP-HIERARCHYNODETREESIZE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RCRDTACCTRELTP 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_RCRDTACCTRELTP 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_RCRDTACCTRELTP INTO WA_RCRDTACCTRELTP.


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

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

*Conversion exit ALPHA, internal->external for field ACTIVEBUSINESSPARTNER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RCRDTACCTRELTP-ACTIVEBUSINESSPARTNER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RCRDTACCTRELTP-ACTIVEBUSINESSPARTNER.
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_RCRDTACCTRELTP_STR, 
MANDT TYPE STRING,
CRDTMGMTBPHIERARCHYNODE TYPE STRING,
BUSINESSPARTNER TYPE STRING,
CREDITSEGMENT TYPE STRING,
CRDTMGMTBPHIERARCHYPARENTNODE TYPE STRING,
CRDTMHIGHERLEVELBUSPARTNER TYPE STRING,
BUSINESSPARTNERISSELECTED TYPE STRING,
ACTIVEBUSINESSPARTNER TYPE STRING,
HIERARCHYLEVEL TYPE STRING,
HIERARCHYDRILLSTATE TYPE STRING,
HIERARCHYNODETREESIZE TYPE STRING,
HIERARCHYNODEISCYCLEENDPOINT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RCRDTACCTRELTP_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_RCRDTACCTRELTP_STR-MANDT sy-vline 
WA_RCRDTACCTRELTP_STR-CRDTMGMTBPHIERARCHYNODE sy-vline 
WA_RCRDTACCTRELTP_STR-BUSINESSPARTNER sy-vline 
WA_RCRDTACCTRELTP_STR-CREDITSEGMENT sy-vline 
WA_RCRDTACCTRELTP_STR-CRDTMGMTBPHIERARCHYPARENTNODE sy-vline 
WA_RCRDTACCTRELTP_STR-CRDTMHIGHERLEVELBUSPARTNER sy-vline 
WA_RCRDTACCTRELTP_STR-BUSINESSPARTNERISSELECTED sy-vline 
WA_RCRDTACCTRELTP_STR-ACTIVEBUSINESSPARTNER sy-vline 
WA_RCRDTACCTRELTP_STR-HIERARCHYLEVEL sy-vline 
WA_RCRDTACCTRELTP_STR-HIERARCHYDRILLSTATE sy-vline 
WA_RCRDTACCTRELTP_STR-HIERARCHYNODETREESIZE sy-vline 
WA_RCRDTACCTRELTP_STR-HIERARCHYNODEISCYCLEENDPOINT sy-vline      INTO ld_text SEPARATED BY SPACE.

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