ABAP Select data from SAP table JVGLFLEXB into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM JVGLFLEXB
*  INTO TABLE @DATA(IT_JVGLFLEXB2).
*--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_JVGLFLEXB INDEX 1 INTO DATA(WA_JVGLFLEXB2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<JVGLFLEXB>-RYEAR = 1.
<JVGLFLEXB>-ACTIV = 1.
<JVGLFLEXB>-RMVCT = 1.
<JVGLFLEXB>-RTCUR = 1.
<JVGLFLEXB>-RUNIT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_JVGLFLEXB-AWTYP, sy-vline,
  WA_JVGLFLEXB-RLDNR, sy-vline,
  WA_JVGLFLEXB-RRCTY, sy-vline,
  WA_JVGLFLEXB-RVERS, sy-vline,
  WA_JVGLFLEXB-LOGSYS, sy-vline,
  WA_JVGLFLEXB-RACCT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_JVGLFLEXB 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_JVGLFLEXB 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_JVGLFLEXB INTO WA_JVGLFLEXB.


*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_JVGLFLEXB-RYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_JVGLFLEXB-RYEAR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field RUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_JVGLFLEXB-RUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_JVGLFLEXB-RUNIT.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

*Conversion exit CUNIT, internal->external for field QUANUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_JVGLFLEXB-QUANUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_JVGLFLEXB-QUANUNIT.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit AC172, internal->external for field BALANCE
CALL FUNCTION 'CONVERSION_EXIT_AC172_OUTPUT'
  EXPORTING
    input =                      WA_JVGLFLEXB-BALANCE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_JVGLFLEXB-BALANCE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC172, internal->external for field DEBIT
CALL FUNCTION 'CONVERSION_EXIT_AC172_OUTPUT'
  EXPORTING
    input =                      WA_JVGLFLEXB-DEBIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_JVGLFLEXB-DEBIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC172, internal->external for field CREDIT
CALL FUNCTION 'CONVERSION_EXIT_AC172_OUTPUT'
  EXPORTING
    input =                      WA_JVGLFLEXB-CREDIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_JVGLFLEXB-CREDIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC172, internal->external for field TURNOVER
CALL FUNCTION 'CONVERSION_EXIT_AC172_OUTPUT'
  EXPORTING
    input =                      WA_JVGLFLEXB-TURNOVER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_JVGLFLEXB-TURNOVER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field ADQUANUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_JVGLFLEXB-ADQUANUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_JVGLFLEXB-ADQUANUNIT.
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_JVGLFLEXB_STR, 
RYEAR TYPE STRING,
ACTIV TYPE STRING,
RMVCT TYPE STRING,
RTCUR TYPE STRING,
RUNIT TYPE STRING,
AWTYP TYPE STRING,
RLDNR TYPE STRING,
RRCTY TYPE STRING,
RVERS TYPE STRING,
LOGSYS TYPE STRING,
RACCT TYPE STRING,
COST_ELEM TYPE STRING,
RBUKRS TYPE STRING,
RCNTR TYPE STRING,
PRCTR TYPE STRING,
RFAREA TYPE STRING,
RBUSA TYPE STRING,
KOKRS TYPE STRING,
SEGMENT TYPE STRING,
SCNTR TYPE STRING,
PPRCTR TYPE STRING,
SFAREA TYPE STRING,
SBUSA TYPE STRING,
RASSC TYPE STRING,
PSEGMENT TYPE STRING,
VNAME TYPE STRING,
EGRUP TYPE STRING,
RECID TYPE STRING,
TIMESTAMP TYPE STRING,
QUANUNIT TYPE STRING,
VALUETYPE TYPE STRING,
CURTYPE TYPE STRING,
FISCPER TYPE STRING,
FISCVAR TYPE STRING,
CHARTACCTS TYPE STRING,
UPMOD TYPE STRING,
VALUTYP TYPE STRING,
CURRUNIT TYPE STRING,
BALANCE TYPE STRING,
DEBIT TYPE STRING,
CREDIT TYPE STRING,
TURNOVER TYPE STRING,
QUANTITY TYPE STRING,
ADQUANUNIT TYPE STRING,
ADQUANTITY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_JVGLFLEXB_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_JVGLFLEXB_STR-RYEAR sy-vline 
WA_JVGLFLEXB_STR-ACTIV sy-vline 
WA_JVGLFLEXB_STR-RMVCT sy-vline 
WA_JVGLFLEXB_STR-RTCUR sy-vline 
WA_JVGLFLEXB_STR-RUNIT sy-vline 
WA_JVGLFLEXB_STR-AWTYP sy-vline 
WA_JVGLFLEXB_STR-RLDNR sy-vline 
WA_JVGLFLEXB_STR-RRCTY sy-vline 
WA_JVGLFLEXB_STR-RVERS sy-vline 
WA_JVGLFLEXB_STR-LOGSYS sy-vline 
WA_JVGLFLEXB_STR-RACCT sy-vline 
WA_JVGLFLEXB_STR-COST_ELEM sy-vline 
WA_JVGLFLEXB_STR-RBUKRS sy-vline 
WA_JVGLFLEXB_STR-RCNTR sy-vline 
WA_JVGLFLEXB_STR-PRCTR sy-vline 
WA_JVGLFLEXB_STR-RFAREA sy-vline 
WA_JVGLFLEXB_STR-RBUSA sy-vline 
WA_JVGLFLEXB_STR-KOKRS sy-vline 
WA_JVGLFLEXB_STR-SEGMENT sy-vline 
WA_JVGLFLEXB_STR-SCNTR sy-vline 
WA_JVGLFLEXB_STR-PPRCTR sy-vline 
WA_JVGLFLEXB_STR-SFAREA sy-vline 
WA_JVGLFLEXB_STR-SBUSA sy-vline 
WA_JVGLFLEXB_STR-RASSC sy-vline 
WA_JVGLFLEXB_STR-PSEGMENT sy-vline 
WA_JVGLFLEXB_STR-VNAME sy-vline 
WA_JVGLFLEXB_STR-EGRUP sy-vline 
WA_JVGLFLEXB_STR-RECID sy-vline 
WA_JVGLFLEXB_STR-TIMESTAMP sy-vline 
WA_JVGLFLEXB_STR-QUANUNIT sy-vline 
WA_JVGLFLEXB_STR-VALUETYPE sy-vline 
WA_JVGLFLEXB_STR-CURTYPE sy-vline 
WA_JVGLFLEXB_STR-FISCPER sy-vline 
WA_JVGLFLEXB_STR-FISCVAR sy-vline 
WA_JVGLFLEXB_STR-CHARTACCTS sy-vline 
WA_JVGLFLEXB_STR-UPMOD sy-vline 
WA_JVGLFLEXB_STR-VALUTYP sy-vline 
WA_JVGLFLEXB_STR-CURRUNIT sy-vline 
WA_JVGLFLEXB_STR-BALANCE sy-vline 
WA_JVGLFLEXB_STR-DEBIT sy-vline 
WA_JVGLFLEXB_STR-CREDIT sy-vline 
WA_JVGLFLEXB_STR-TURNOVER sy-vline 
WA_JVGLFLEXB_STR-QUANTITY sy-vline 
WA_JVGLFLEXB_STR-ADQUANUNIT sy-vline 
WA_JVGLFLEXB_STR-ADQUANTITY sy-vline      INTO ld_text SEPARATED BY SPACE.

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