ABAP Select data from SAP table OIUTV_VL_DOCS_MES into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM OIUTV_VL_DOCS_MES
*  INTO TABLE @DATA(IT_OIUTV_VL_DOCS_MES2).
*--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_OIUTV_VL_DOCS_MES INDEX 1 INTO DATA(WA_OIUTV_VL_DOCS_MES2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<OIUTV_VL_DOCS_MES>-ROW_NO = 1.
<OIUTV_VL_DOCS_MES>-SEQUENCENUMBER = 1.
<OIUTV_VL_DOCS_MES>-DELIVERYNETWORK = 1.
<OIUTV_VL_DOCS_MES>-SALESDATE = 1.
<OIUTV_VL_DOCS_MES>-PRAJOINTVENTURE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_OIUTV_VL_DOCS_MES-DIVISIONOFINTEREST, sy-vline,
  WA_OIUTV_VL_DOCS_MES-PRACONTRACT, sy-vline,
  WA_OIUTV_VL_DOCS_MES-WELL, sy-vline,
  WA_OIUTV_VL_DOCS_MES-WELLCOMPLETION, sy-vline,
  WA_OIUTV_VL_DOCS_MES-MEASUREMENTPOINT, sy-vline,
  WA_OIUTV_VL_DOCS_MES-PRAPRODUCT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_OIUTV_VL_DOCS_MES 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_OIUTV_VL_DOCS_MES 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_OIUTV_VL_DOCS_MES INTO WA_OIUTV_VL_DOCS_MES.


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

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

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

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

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

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

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

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

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

*Conversion exit GJAHR, internal->external for field CURRENTVALNDOCUMENTYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_OIUTV_VL_DOCS_MES-CURRENTVALNDOCUMENTYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OIUTV_VL_DOCS_MES-CURRENTVALNDOCUMENTYEAR.
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_OIUTV_VL_DOCS_MES_STR, 
ROW_NO TYPE STRING,
SEQUENCENUMBER TYPE STRING,
DELIVERYNETWORK TYPE STRING,
SALESDATE TYPE STRING,
PRAJOINTVENTURE TYPE STRING,
DIVISIONOFINTEREST TYPE STRING,
PRACONTRACT TYPE STRING,
WELL TYPE STRING,
WELLCOMPLETION TYPE STRING,
MEASUREMENTPOINT TYPE STRING,
PRAPRODUCT TYPE STRING,
BOOKINGREVERSALTYPE TYPE STRING,
VOLUMETYPE TYPE STRING,
BASELINEVALNDOC TYPE STRING,
BASELINEVALNDOCYEAR TYPE STRING,
CURRENTVALNDOCUMENT TYPE STRING,
CURRENTVALNDOCUMENTYEAR TYPE STRING,
LASTCHANGEDBYUSER TYPE STRING,
LASTCHANGEDATETIME TYPE STRING,
MESS_TYPE TYPE STRING,
MESS_VALUE TYPE STRING,
DATE_TEXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_OIUTV_VL_DOCS_MES_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_OIUTV_VL_DOCS_MES_STR-ROW_NO sy-vline 
WA_OIUTV_VL_DOCS_MES_STR-SEQUENCENUMBER sy-vline 
WA_OIUTV_VL_DOCS_MES_STR-DELIVERYNETWORK sy-vline 
WA_OIUTV_VL_DOCS_MES_STR-SALESDATE sy-vline 
WA_OIUTV_VL_DOCS_MES_STR-PRAJOINTVENTURE sy-vline 
WA_OIUTV_VL_DOCS_MES_STR-DIVISIONOFINTEREST sy-vline 
WA_OIUTV_VL_DOCS_MES_STR-PRACONTRACT sy-vline 
WA_OIUTV_VL_DOCS_MES_STR-WELL sy-vline 
WA_OIUTV_VL_DOCS_MES_STR-WELLCOMPLETION sy-vline 
WA_OIUTV_VL_DOCS_MES_STR-MEASUREMENTPOINT sy-vline 
WA_OIUTV_VL_DOCS_MES_STR-PRAPRODUCT sy-vline 
WA_OIUTV_VL_DOCS_MES_STR-BOOKINGREVERSALTYPE sy-vline 
WA_OIUTV_VL_DOCS_MES_STR-VOLUMETYPE sy-vline 
WA_OIUTV_VL_DOCS_MES_STR-BASELINEVALNDOC sy-vline 
WA_OIUTV_VL_DOCS_MES_STR-BASELINEVALNDOCYEAR sy-vline 
WA_OIUTV_VL_DOCS_MES_STR-CURRENTVALNDOCUMENT sy-vline 
WA_OIUTV_VL_DOCS_MES_STR-CURRENTVALNDOCUMENTYEAR sy-vline 
WA_OIUTV_VL_DOCS_MES_STR-LASTCHANGEDBYUSER sy-vline 
WA_OIUTV_VL_DOCS_MES_STR-LASTCHANGEDATETIME sy-vline 
WA_OIUTV_VL_DOCS_MES_STR-MESS_TYPE sy-vline 
WA_OIUTV_VL_DOCS_MES_STR-MESS_VALUE sy-vline 
WA_OIUTV_VL_DOCS_MES_STR-DATE_TEXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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