ABAP Select data from SAP table JVPSC01O into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP JVPSC01O 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 JVPSC01O. 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 JVPSC01O 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_JVPSC01O TYPE STANDARD TABLE OF JVPSC01O,
      WA_JVPSC01O TYPE JVPSC01O,
      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: <JVPSC01O> TYPE JVPSC01O.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_JVPSC01O.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM JVPSC01O
  INTO TABLE IT_JVPSC01O.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM JVPSC01O
*  INTO TABLE @DATA(IT_JVPSC01O2).
*--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_JVPSC01O INDEX 1 INTO DATA(WA_JVPSC01O2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_JVPSC01O ASSIGNING <JVPSC01O>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<JVPSC01O>-MANDT = 1.
<JVPSC01O>-OBJNR = 1.
<JVPSC01O>-DATIV = 1.
<JVPSC01O>-DATIB = 1.
<JVPSC01O>-DATPV = 1.

ENDLOOP.

LOOP AT IT_JVPSC01O INTO WA_JVPSC01O.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_JVPSC01O-DATPB, sy-vline,
  WA_JVPSC01O-BUKRS, sy-vline,
  WA_JVPSC01O-PSC_NAME, sy-vline,
  WA_JVPSC01O-PSC_PRODUCT, sy-vline,
  WA_JVPSC01O-JVNAM, sy-vline,
  WA_JVPSC01O-EGROU, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_JVPSC01O 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_JVPSC01O 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_JVPSC01O INTO WA_JVPSC01O.


*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 JVNAM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_JVPSC01O-JVNAM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_JVPSC01O-JVNAM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field EGROU
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_JVPSC01O-EGROU
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_JVPSC01O-EGROU.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ACCT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_JVPSC01O-ACCT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_JVPSC01O-ACCT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field CNTR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_JVPSC01O-CNTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_JVPSC01O-CNTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ORDNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_JVPSC01O-ORDNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_JVPSC01O-ORDNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ABPSP, internal->external for field PROJK
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_JVPSC01O-PROJK
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_JVPSC01O-PROJK.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PRCTR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_JVPSC01O-PRCTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_JVPSC01O-PRCTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RECIN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_JVPSC01O-RECIN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_JVPSC01O-RECIN.
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_JVPSC01O_STR, 
MANDT TYPE STRING,
OBJNR TYPE STRING,
DATIV TYPE STRING,
DATIB TYPE STRING,
DATPV TYPE STRING,
DATPB TYPE STRING,
BUKRS TYPE STRING,
PSC_NAME TYPE STRING,
PSC_PRODUCT TYPE STRING,
JVNAM TYPE STRING,
EGROU TYPE STRING,
ACCT TYPE STRING,
BUSA TYPE STRING,
CNTR TYPE STRING,
ORDNR TYPE STRING,
PROJK TYPE STRING,
PRCTR TYPE STRING,
AUFPL TYPE STRING,
APLZL TYPE STRING,
RECIN TYPE STRING,END OF T_EKKO_STR.
DATA: WA_JVPSC01O_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_JVPSC01O_STR-MANDT sy-vline 
WA_JVPSC01O_STR-OBJNR sy-vline 
WA_JVPSC01O_STR-DATIV sy-vline 
WA_JVPSC01O_STR-DATIB sy-vline 
WA_JVPSC01O_STR-DATPV sy-vline 
WA_JVPSC01O_STR-DATPB sy-vline 
WA_JVPSC01O_STR-BUKRS sy-vline 
WA_JVPSC01O_STR-PSC_NAME sy-vline 
WA_JVPSC01O_STR-PSC_PRODUCT sy-vline 
WA_JVPSC01O_STR-JVNAM sy-vline 
WA_JVPSC01O_STR-EGROU sy-vline 
WA_JVPSC01O_STR-ACCT sy-vline 
WA_JVPSC01O_STR-BUSA sy-vline 
WA_JVPSC01O_STR-CNTR sy-vline 
WA_JVPSC01O_STR-ORDNR sy-vline 
WA_JVPSC01O_STR-PROJK sy-vline 
WA_JVPSC01O_STR-PRCTR sy-vline 
WA_JVPSC01O_STR-AUFPL sy-vline 
WA_JVPSC01O_STR-APLZL sy-vline 
WA_JVPSC01O_STR-RECIN sy-vline      INTO ld_text SEPARATED BY SPACE.

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