ABAP Select data from SAP table J_1GVL_RSI1 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP J_1GVL_RSI1 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 J_1GVL_RSI1. 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 J_1GVL_RSI1 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_J_1GVL_RSI1 TYPE STANDARD TABLE OF J_1GVL_RSI1,
      WA_J_1GVL_RSI1 TYPE J_1GVL_RSI1,
      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: <J_1GVL_RSI1> TYPE J_1GVL_RSI1.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_J_1GVL_RSI1.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM J_1GVL_RSI1
  INTO TABLE IT_J_1GVL_RSI1.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM J_1GVL_RSI1
*  INTO TABLE @DATA(IT_J_1GVL_RSI12).
*--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_J_1GVL_RSI1 INDEX 1 INTO DATA(WA_J_1GVL_RSI12).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_J_1GVL_RSI1 ASSIGNING <J_1GVL_RSI1>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<J_1GVL_RSI1>-TYPET = 1.
<J_1GVL_RSI1>-TICON = 1.
<J_1GVL_RSI1>-UMWRK = 1.
<J_1GVL_RSI1>-UMMAT = 1.
<J_1GVL_RSI1>-UMBAR = 1.

ENDLOOP.

LOOP AT IT_J_1GVL_RSI1 INTO WA_J_1GVL_RSI1.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_J_1GVL_RSI1-MAKTG, sy-vline,
  WA_J_1GVL_RSI1-MENGE, sy-vline,
  WA_J_1GVL_RSI1-GRBTR, sy-vline,
  WA_J_1GVL_RSI1-PUEXP, sy-vline,
  WA_J_1GVL_RSI1-TRBTR, sy-vline,
  WA_J_1GVL_RSI1-CPBTR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_J_1GVL_RSI1 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_J_1GVL_RSI1 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_J_1GVL_RSI1 INTO WA_J_1GVL_RSI1.


*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 MATN1, internal->external for field UMMAT
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_J_1GVL_RSI1-UMMAT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_1GVL_RSI1-UMMAT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field GRBTR
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_J_1GVL_RSI1-GRBTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_1GVL_RSI1-GRBTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field PUEXP
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_J_1GVL_RSI1-PUEXP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_1GVL_RSI1-PUEXP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field TRBTR
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_J_1GVL_RSI1-TRBTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_1GVL_RSI1-TRBTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field CPBTR
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_J_1GVL_RSI1-CPBTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_1GVL_RSI1-CPBTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field PDEXP
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_J_1GVL_RSI1-PDEXP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_1GVL_RSI1-PDEXP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field MTBTR
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_J_1GVL_RSI1-MTBTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_1GVL_RSI1-MTBTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field COBTR
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_J_1GVL_RSI1-COBTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_1GVL_RSI1-COBTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_J_1GVL_RSI1-MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_1GVL_RSI1-MEINS.
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_J_1GVL_RSI1_STR, 
TYPET TYPE STRING,
TICON TYPE STRING,
UMWRK TYPE STRING,
UMMAT TYPE STRING,
UMBAR TYPE STRING,
MAKTG TYPE STRING,
MENGE TYPE STRING,
GRBTR TYPE STRING,
PUEXP TYPE STRING,
TRBTR TYPE STRING,
CPBTR TYPE STRING,
PDEXP TYPE STRING,
MTBTR TYPE STRING,
COBTR TYPE STRING,
WAERS TYPE STRING,
MEINS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_J_1GVL_RSI1_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_J_1GVL_RSI1_STR-TYPET sy-vline 
WA_J_1GVL_RSI1_STR-TICON sy-vline 
WA_J_1GVL_RSI1_STR-UMWRK sy-vline 
WA_J_1GVL_RSI1_STR-UMMAT sy-vline 
WA_J_1GVL_RSI1_STR-UMBAR sy-vline 
WA_J_1GVL_RSI1_STR-MAKTG sy-vline 
WA_J_1GVL_RSI1_STR-MENGE sy-vline 
WA_J_1GVL_RSI1_STR-GRBTR sy-vline 
WA_J_1GVL_RSI1_STR-PUEXP sy-vline 
WA_J_1GVL_RSI1_STR-TRBTR sy-vline 
WA_J_1GVL_RSI1_STR-CPBTR sy-vline 
WA_J_1GVL_RSI1_STR-PDEXP sy-vline 
WA_J_1GVL_RSI1_STR-MTBTR sy-vline 
WA_J_1GVL_RSI1_STR-COBTR sy-vline 
WA_J_1GVL_RSI1_STR-WAERS sy-vline 
WA_J_1GVL_RSI1_STR-MEINS sy-vline      INTO ld_text SEPARATED BY SPACE.

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