ABAP Select data from SAP table RGJV_LI into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RGJV_LI
*  INTO TABLE @DATA(IT_RGJV_LI2).
*--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_RGJV_LI INDEX 1 INTO DATA(WA_RGJV_LI2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RGJV_LI>-RLDNR = 1.
<RGJV_LI>-GL_SIRID = 1.
<RGJV_LI>-RDPOM = 1.
<RGJV_LI>-RDBILLM = 1.
<RGJV_LI>-AUNIT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RGJV_LI-AUTOM, sy-vline,
  WA_RGJV_LI-ACTIV, sy-vline,
  WA_RGJV_LI-WSDAT, sy-vline,
  WA_RGJV_LI-REFACTIV, sy-vline,
  WA_RGJV_LI-BILID, sy-vline,
  WA_RGJV_LI-ORECID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RGJV_LI 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_RGJV_LI 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_RGJV_LI INTO WA_RGJV_LI.


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

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

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

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

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

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_RGJV_LI-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RGJV_LI-MATNR.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field CBVENDOR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RGJV_LI-CBVENDOR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RGJV_LI-CBVENDOR.
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_RGJV_LI_STR, 
RLDNR TYPE STRING,
GL_SIRID TYPE STRING,
RDPOM TYPE STRING,
RDBILLM TYPE STRING,
AUNIT TYPE STRING,
AUTOM TYPE STRING,
ACTIV TYPE STRING,
WSDAT TYPE STRING,
REFACTIV TYPE STRING,
BILID TYPE STRING,
ORECID TYPE STRING,
MWSKZ TYPE STRING,
BILLM TYPE STRING,
POM TYPE STRING,
CBPERIOD TYPE STRING,
EBELN TYPE STRING,
EBELP TYPE STRING,
KTOSL TYPE STRING,
MMACT TYPE STRING,
LSTAR TYPE STRING,
CYCLE TYPE STRING,
SDATE TYPE STRING,
SEQNR TYPE STRING,
SEQNAME TYPE STRING,
REFCYC TYPE STRING,
MATNR TYPE STRING,
CONDI TYPE STRING,
AWTYP TYPE STRING,
AWORG TYPE STRING,
LOGSYS TYPE STRING,
REFAWTYP TYPE STRING,
REFAWREF TYPE STRING,
REFAWORG TYPE STRING,
REFLOGSYS TYPE STRING,
PRODPER TYPE STRING,
CBCUSTOMER TYPE STRING,
CBVENDOR TYPE STRING,
CBPAYTERM TYPE STRING,
XSBL TYPE STRING,
SBREFLN TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RGJV_LI_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_RGJV_LI_STR-RLDNR sy-vline 
WA_RGJV_LI_STR-GL_SIRID sy-vline 
WA_RGJV_LI_STR-RDPOM sy-vline 
WA_RGJV_LI_STR-RDBILLM sy-vline 
WA_RGJV_LI_STR-AUNIT sy-vline 
WA_RGJV_LI_STR-AUTOM sy-vline 
WA_RGJV_LI_STR-ACTIV sy-vline 
WA_RGJV_LI_STR-WSDAT sy-vline 
WA_RGJV_LI_STR-REFACTIV sy-vline 
WA_RGJV_LI_STR-BILID sy-vline 
WA_RGJV_LI_STR-ORECID sy-vline 
WA_RGJV_LI_STR-MWSKZ sy-vline 
WA_RGJV_LI_STR-BILLM sy-vline 
WA_RGJV_LI_STR-POM sy-vline 
WA_RGJV_LI_STR-CBPERIOD sy-vline 
WA_RGJV_LI_STR-EBELN sy-vline 
WA_RGJV_LI_STR-EBELP sy-vline 
WA_RGJV_LI_STR-KTOSL sy-vline 
WA_RGJV_LI_STR-MMACT sy-vline 
WA_RGJV_LI_STR-LSTAR sy-vline 
WA_RGJV_LI_STR-CYCLE sy-vline 
WA_RGJV_LI_STR-SDATE sy-vline 
WA_RGJV_LI_STR-SEQNR sy-vline 
WA_RGJV_LI_STR-SEQNAME sy-vline 
WA_RGJV_LI_STR-REFCYC sy-vline 
WA_RGJV_LI_STR-MATNR sy-vline 
WA_RGJV_LI_STR-CONDI sy-vline 
WA_RGJV_LI_STR-AWTYP sy-vline 
WA_RGJV_LI_STR-AWORG sy-vline 
WA_RGJV_LI_STR-LOGSYS sy-vline 
WA_RGJV_LI_STR-REFAWTYP sy-vline 
WA_RGJV_LI_STR-REFAWREF sy-vline 
WA_RGJV_LI_STR-REFAWORG sy-vline 
WA_RGJV_LI_STR-REFLOGSYS sy-vline 
WA_RGJV_LI_STR-PRODPER sy-vline 
WA_RGJV_LI_STR-CBCUSTOMER sy-vline 
WA_RGJV_LI_STR-CBVENDOR sy-vline 
WA_RGJV_LI_STR-CBPAYTERM sy-vline 
WA_RGJV_LI_STR-XSBL sy-vline 
WA_RGJV_LI_STR-SBREFLN sy-vline      INTO ld_text SEPARATED BY SPACE.

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