ABAP Select data from SAP table T8JVT03 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP T8JVT03 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 T8JVT03. 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 T8JVT03 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_T8JVT03 TYPE STANDARD TABLE OF T8JVT03,
      WA_T8JVT03 TYPE T8JVT03,
      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: <T8JVT03> TYPE T8JVT03.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_T8JVT03.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM T8JVT03
  INTO TABLE IT_T8JVT03.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM T8JVT03
*  INTO TABLE @DATA(IT_T8JVT032).
*--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_T8JVT03 INDEX 1 INTO DATA(WA_T8JVT032).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_T8JVT03 ASSIGNING <T8JVT03>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<T8JVT03>-DOCDATE = 1.
<T8JVT03>-DOCTYPE = 1.
<T8JVT03>-COCODE = 1.
<T8JVT03>-POSTDATE = 1.
<T8JVT03>-PERIOD = 1.

ENDLOOP.

LOOP AT IT_T8JVT03 INTO WA_T8JVT03.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_T8JVT03-TRANSCURR, sy-vline,
  WA_T8JVT03-SCREENTYPE, sy-vline,
  WA_T8JVT03-TRANSRATE, sy-vline,
  WA_T8JVT03-DOCNUM, sy-vline,
  WA_T8JVT03-TRANSDATE, sy-vline,
  WA_T8JVT03-REFDOC, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_T8JVT03 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_T8JVT03 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_T8JVT03 INTO WA_T8JVT03.


*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 EXCRT, internal->external for field TRANSRATE
CALL FUNCTION 'CONVERSION_EXIT_EXCRT_OUTPUT'
  EXPORTING
    input =                      WA_T8JVT03-TRANSRATE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_T8JVT03-TRANSRATE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field DOCNUM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_T8JVT03-DOCNUM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_T8JVT03-DOCNUM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ACCOUNT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_T8JVT03-ACCOUNT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_T8JVT03-ACCOUNT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field COSTCEN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_T8JVT03-COSTCEN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_T8JVT03-COSTCEN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ORDER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_T8JVT03-ORDER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_T8JVT03-ORDER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ABPSP, internal->external for field PROJECT
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_T8JVT03-PROJECT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_T8JVT03-PROJECT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VENTURE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_T8JVT03-VENTURE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_T8JVT03-VENTURE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field EGRUP
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_T8JVT03-EGRUP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_T8JVT03-EGRUP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BILLIND
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_T8JVT03-BILLIND
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_T8JVT03-BILLIND.
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_T8JVT03_STR, 
DOCDATE TYPE STRING,
DOCTYPE TYPE STRING,
COCODE TYPE STRING,
POSTDATE TYPE STRING,
PERIOD TYPE STRING,
TRANSCURR TYPE STRING,
SCREENTYPE TYPE STRING,
TRANSRATE TYPE STRING,
DOCNUM TYPE STRING,
TRANSDATE TYPE STRING,
REFDOC TYPE STRING,
INTCOCD TYPE STRING,
DOCHEADTXT TYPE STRING,
CLEARBUS TYPE STRING,
TRANSAMT TYPE STRING,
LOCALAMT TYPE STRING,
TRANSTAX TYPE STRING,
LOCALTAX TYPE STRING,
TAXCODE TYPE STRING,
ALLOC TYPE STRING,
POSTKEY TYPE STRING,
ACCOUNT TYPE STRING,
SEIND TYPE STRING,
TRANSTYPE TYPE STRING,
NEWCOCD TYPE STRING,
TEXT TYPE STRING,
PAYBLOCK TYPE STRING,
COSTCEN TYPE STRING,
ORDER TYPE STRING,
PROJECT TYPE STRING,
VENTURE TYPE STRING,
EGRUP TYPE STRING,
BILLIND TYPE STRING,END OF T_EKKO_STR.
DATA: WA_T8JVT03_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_T8JVT03_STR-DOCDATE sy-vline 
WA_T8JVT03_STR-DOCTYPE sy-vline 
WA_T8JVT03_STR-COCODE sy-vline 
WA_T8JVT03_STR-POSTDATE sy-vline 
WA_T8JVT03_STR-PERIOD sy-vline 
WA_T8JVT03_STR-TRANSCURR sy-vline 
WA_T8JVT03_STR-SCREENTYPE sy-vline 
WA_T8JVT03_STR-TRANSRATE sy-vline 
WA_T8JVT03_STR-DOCNUM sy-vline 
WA_T8JVT03_STR-TRANSDATE sy-vline 
WA_T8JVT03_STR-REFDOC sy-vline 
WA_T8JVT03_STR-INTCOCD sy-vline 
WA_T8JVT03_STR-DOCHEADTXT sy-vline 
WA_T8JVT03_STR-CLEARBUS sy-vline 
WA_T8JVT03_STR-TRANSAMT sy-vline 
WA_T8JVT03_STR-LOCALAMT sy-vline 
WA_T8JVT03_STR-TRANSTAX sy-vline 
WA_T8JVT03_STR-LOCALTAX sy-vline 
WA_T8JVT03_STR-TAXCODE sy-vline 
WA_T8JVT03_STR-ALLOC sy-vline 
WA_T8JVT03_STR-POSTKEY sy-vline 
WA_T8JVT03_STR-ACCOUNT sy-vline 
WA_T8JVT03_STR-SEIND sy-vline 
WA_T8JVT03_STR-TRANSTYPE sy-vline 
WA_T8JVT03_STR-NEWCOCD sy-vline 
WA_T8JVT03_STR-TEXT sy-vline 
WA_T8JVT03_STR-PAYBLOCK sy-vline 
WA_T8JVT03_STR-COSTCEN sy-vline 
WA_T8JVT03_STR-ORDER sy-vline 
WA_T8JVT03_STR-PROJECT sy-vline 
WA_T8JVT03_STR-VENTURE sy-vline 
WA_T8JVT03_STR-EGRUP sy-vline 
WA_T8JVT03_STR-BILLIND sy-vline      INTO ld_text SEPARATED BY SPACE.

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