ABAP Select data from SAP table OIUCM_T8JV into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP OIUCM_T8JV 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 OIUCM_T8JV. 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 OIUCM_T8JV 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_OIUCM_T8JV TYPE STANDARD TABLE OF OIUCM_T8JV,
      WA_OIUCM_T8JV TYPE OIUCM_T8JV,
      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: <OIUCM_T8JV> TYPE OIUCM_T8JV.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_OIUCM_T8JV.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM OIUCM_T8JV
  INTO TABLE IT_OIUCM_T8JV.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM OIUCM_T8JV
*  INTO TABLE @DATA(IT_OIUCM_T8JV2).
*--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_OIUCM_T8JV INDEX 1 INTO DATA(WA_OIUCM_T8JV2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_OIUCM_T8JV ASSIGNING <OIUCM_T8JV>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<OIUCM_T8JV>-MANDT = 1.
<OIUCM_T8JV>-BUKRS = 1.
<OIUCM_T8JV>-VNAME = 1.
<OIUCM_T8JV>-PAYTERMS = 1.
<OIUCM_T8JV>-BMETHOD = 1.

ENDLOOP.

LOOP AT IT_OIUCM_T8JV INTO WA_OIUCM_T8JV.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_OIUCM_T8JV-VTYPE, sy-vline,
  WA_OIUCM_T8JV-OPERATOR, sy-vline,
  WA_OIUCM_T8JV-TAXCODE, sy-vline,
  WA_OIUCM_T8JV-VCLASS, sy-vline,
  WA_OIUCM_T8JV-ITD, sy-vline,
  WA_OIUCM_T8JV-CRUSER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_OIUCM_T8JV 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_OIUCM_T8JV 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_OIUCM_T8JV INTO WA_OIUCM_T8JV.


*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 VNAME
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_OIUCM_T8JV-VNAME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OIUCM_T8JV-VNAME.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BMETHOD
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_OIUCM_T8JV-BMETHOD
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OIUCM_T8JV-BMETHOD.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field OPERATOR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_OIUCM_T8JV-OPERATOR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OIUCM_T8JV-OPERATOR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VCLASS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_OIUCM_T8JV-VCLASS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OIUCM_T8JV-VCLASS.
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_OIUCM_T8JV_STR, 
MANDT TYPE STRING,
BUKRS TYPE STRING,
VNAME TYPE STRING,
PAYTERMS TYPE STRING,
BMETHOD TYPE STRING,
VTYPE TYPE STRING,
OPERATOR TYPE STRING,
TAXCODE TYPE STRING,
VCLASS TYPE STRING,
ITD TYPE STRING,
CRUSER TYPE STRING,
CRTIME TYPE STRING,
CRDATE TYPE STRING,
CHUSER TYPE STRING,
CHTIME TYPE STRING,
CHDATE TYPE STRING,
VACTIVE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_OIUCM_T8JV_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_OIUCM_T8JV_STR-MANDT sy-vline 
WA_OIUCM_T8JV_STR-BUKRS sy-vline 
WA_OIUCM_T8JV_STR-VNAME sy-vline 
WA_OIUCM_T8JV_STR-PAYTERMS sy-vline 
WA_OIUCM_T8JV_STR-BMETHOD sy-vline 
WA_OIUCM_T8JV_STR-VTYPE sy-vline 
WA_OIUCM_T8JV_STR-OPERATOR sy-vline 
WA_OIUCM_T8JV_STR-TAXCODE sy-vline 
WA_OIUCM_T8JV_STR-VCLASS sy-vline 
WA_OIUCM_T8JV_STR-ITD sy-vline 
WA_OIUCM_T8JV_STR-CRUSER sy-vline 
WA_OIUCM_T8JV_STR-CRTIME sy-vline 
WA_OIUCM_T8JV_STR-CRDATE sy-vline 
WA_OIUCM_T8JV_STR-CHUSER sy-vline 
WA_OIUCM_T8JV_STR-CHTIME sy-vline 
WA_OIUCM_T8JV_STR-CHDATE sy-vline 
WA_OIUCM_T8JV_STR-VACTIVE sy-vline      INTO ld_text SEPARATED BY SPACE.

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