ABAP Select data from SAP table VEC_DRR into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VEC_DRR
*  INTO TABLE @DATA(IT_VEC_DRR2).
*--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_VEC_DRR INDEX 1 INTO DATA(WA_VEC_DRR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VEC_DRR>-MANDT = 1.
<VEC_DRR>-DRRUUID = 1.
<VEC_DRR>-SCEN_ID = 1.
<VEC_DRR>-RYEAR = 1.
<VEC_DRR>-POPER = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VEC_DRR-PERIV, sy-vline,
  WA_VEC_DRR-FISCYEARPER, sy-vline,
  WA_VEC_DRR-DIMEN, sy-vline,
  WA_VEC_DRR-RVERS, sy-vline,
  WA_VEC_DRR-RLDNR, sy-vline,
  WA_VEC_DRR-RBUNIT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VEC_DRR 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_VEC_DRR 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_VEC_DRR INTO WA_VEC_DRR.


*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 RYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_VEC_DRR-RYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VEC_DRR-RYEAR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit PERI7, internal->external for field FISCYEARPER
CALL FUNCTION 'CONVERSION_EXIT_PERI7_OUTPUT'
  EXPORTING
    input =                      WA_VEC_DRR-FISCYEARPER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VEC_DRR-FISCYEARPER.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit AFIMC, internal->external for field RBUNIT
CALL FUNCTION 'CONVERSION_EXIT_AFIMC_OUTPUT'
  EXPORTING
    input =                      WA_VEC_DRR-RBUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VEC_DRR-RBUNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AFIMC, internal->external for field RCONGR
CALL FUNCTION 'CONVERSION_EXIT_AFIMC_OUTPUT'
  EXPORTING
    input =                      WA_VEC_DRR-RCONGR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VEC_DRR-RCONGR.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit ALPHA, internal->external for field SEGMENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VEC_DRR-SEGMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VEC_DRR-SEGMENT.
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_VEC_DRR_STR, 
MANDT TYPE STRING,
DRRUUID TYPE STRING,
SCEN_ID TYPE STRING,
RYEAR TYPE STRING,
POPER TYPE STRING,
PERIV TYPE STRING,
FISCYEARPER TYPE STRING,
DIMEN TYPE STRING,
RVERS TYPE STRING,
RLDNR TYPE STRING,
RBUNIT TYPE STRING,
RCONGR TYPE STRING,
RITCLG TYPE STRING,
CURTYPE TYPE STRING,
RCOMP TYPE STRING,
BUKRS TYPE STRING,
KOKRS TYPE STRING,
RCNTR TYPE STRING,
PRCTR TYPE STRING,
SEGMENT TYPE STRING,
RBUSA TYPE STRING,
USTATUS TYPE STRING,
SSTATUS TYPE STRING,
TIMESTAMP TYPE STRING,
CREATEDBY TYPE STRING,
CREATEDAT TYPE STRING,
CHANGEDBY TYPE STRING,
CHANGEDAT TYPE STRING,
METHOD TYPE STRING,
TASK TYPE STRING,
JOBNAME TYPE STRING,
JOBCOUNT TYPE STRING,
LOGNUMBER TYPE STRING,
TTIME TYPE STRING,
MSGTY TYPE STRING,
MSGID TYPE STRING,
MSGNO TYPE STRING,
MSGV1 TYPE STRING,
MSGV2 TYPE STRING,
MSGV3 TYPE STRING,
MSGV4 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VEC_DRR_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_VEC_DRR_STR-MANDT sy-vline 
WA_VEC_DRR_STR-DRRUUID sy-vline 
WA_VEC_DRR_STR-SCEN_ID sy-vline 
WA_VEC_DRR_STR-RYEAR sy-vline 
WA_VEC_DRR_STR-POPER sy-vline 
WA_VEC_DRR_STR-PERIV sy-vline 
WA_VEC_DRR_STR-FISCYEARPER sy-vline 
WA_VEC_DRR_STR-DIMEN sy-vline 
WA_VEC_DRR_STR-RVERS sy-vline 
WA_VEC_DRR_STR-RLDNR sy-vline 
WA_VEC_DRR_STR-RBUNIT sy-vline 
WA_VEC_DRR_STR-RCONGR sy-vline 
WA_VEC_DRR_STR-RITCLG sy-vline 
WA_VEC_DRR_STR-CURTYPE sy-vline 
WA_VEC_DRR_STR-RCOMP sy-vline 
WA_VEC_DRR_STR-BUKRS sy-vline 
WA_VEC_DRR_STR-KOKRS sy-vline 
WA_VEC_DRR_STR-RCNTR sy-vline 
WA_VEC_DRR_STR-PRCTR sy-vline 
WA_VEC_DRR_STR-SEGMENT sy-vline 
WA_VEC_DRR_STR-RBUSA sy-vline 
WA_VEC_DRR_STR-USTATUS sy-vline 
WA_VEC_DRR_STR-SSTATUS sy-vline 
WA_VEC_DRR_STR-TIMESTAMP sy-vline 
WA_VEC_DRR_STR-CREATEDBY sy-vline 
WA_VEC_DRR_STR-CREATEDAT sy-vline 
WA_VEC_DRR_STR-CHANGEDBY sy-vline 
WA_VEC_DRR_STR-CHANGEDAT sy-vline 
WA_VEC_DRR_STR-METHOD sy-vline 
WA_VEC_DRR_STR-TASK sy-vline 
WA_VEC_DRR_STR-JOBNAME sy-vline 
WA_VEC_DRR_STR-JOBCOUNT sy-vline 
WA_VEC_DRR_STR-LOGNUMBER sy-vline 
WA_VEC_DRR_STR-TTIME sy-vline 
WA_VEC_DRR_STR-MSGTY sy-vline 
WA_VEC_DRR_STR-MSGID sy-vline 
WA_VEC_DRR_STR-MSGNO sy-vline 
WA_VEC_DRR_STR-MSGV1 sy-vline 
WA_VEC_DRR_STR-MSGV2 sy-vline 
WA_VEC_DRR_STR-MSGV3 sy-vline 
WA_VEC_DRR_STR-MSGV4 sy-vline      INTO ld_text SEPARATED BY SPACE.

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