ABAP Select data from SAP table RGJMCD00_ALV2 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RGJMCD00_ALV2 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 RGJMCD00_ALV2. 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 RGJMCD00_ALV2 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_RGJMCD00_ALV2 TYPE STANDARD TABLE OF RGJMCD00_ALV2,
      WA_RGJMCD00_ALV2 TYPE RGJMCD00_ALV2,
      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: <RGJMCD00_ALV2> TYPE RGJMCD00_ALV2.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RGJMCD00_ALV2.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RGJMCD00_ALV2
  INTO TABLE IT_RGJMCD00_ALV2.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RGJMCD00_ALV2
*  INTO TABLE @DATA(IT_RGJMCD00_ALV22).
*--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_RGJMCD00_ALV2 INDEX 1 INTO DATA(WA_RGJMCD00_ALV22).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RGJMCD00_ALV2 ASSIGNING <RGJMCD00_ALV2>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RGJMCD00_ALV2>-TABNAME = 1.
<RGJMCD00_ALV2>-DDTEXT = 1.
<RGJMCD00_ALV2>-BUKRS = 1.
<RGJMCD00_ALV2>-VNAME = 1.
<RGJMCD00_ALV2>-EGRUP = 1.

ENDLOOP.

LOOP AT IT_RGJMCD00_ALV2 INTO WA_RGJMCD00_ALV2.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RGJMCD00_ALV2-FUNDCUR, sy-vline,
  WA_RGJMCD00_ALV2-SPRAS, sy-vline,
  WA_RGJMCD00_ALV2-ETYPE, sy-vline,
  WA_RGJMCD00_ALV2-FDATE, sy-vline,
  WA_RGJMCD00_ALV2-JV_PARTN, sy-vline,
  WA_RGJMCD00_ALV2-RECID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RGJMCD00_ALV2 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_RGJMCD00_ALV2 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_RGJMCD00_ALV2 INTO WA_RGJMCD00_ALV2.


*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 VNAME
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RGJMCD00_ALV2-VNAME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RGJMCD00_ALV2-VNAME.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field EGRUP
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RGJMCD00_ALV2-EGRUP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RGJMCD00_ALV2-EGRUP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ISOLA, internal->external for field SPRAS
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_RGJMCD00_ALV2-SPRAS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RGJMCD00_ALV2-SPRAS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ETYPE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RGJMCD00_ALV2-ETYPE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RGJMCD00_ALV2-ETYPE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field JV_PARTN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RGJMCD00_ALV2-JV_PARTN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RGJMCD00_ALV2-JV_PARTN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RECID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RGJMCD00_ALV2-RECID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RGJMCD00_ALV2-RECID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field CARRYOWNER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RGJMCD00_ALV2-CARRYOWNER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RGJMCD00_ALV2-CARRYOWNER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field CARROWNER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RGJMCD00_ALV2-CARROWNER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RGJMCD00_ALV2-CARROWNER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field JOA
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RGJMCD00_ALV2-JOA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RGJMCD00_ALV2-JOA.
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_RGJMCD00_ALV2_STR, 
TABNAME TYPE STRING,
DDTEXT TYPE STRING,
BUKRS TYPE STRING,
VNAME TYPE STRING,
EGRUP TYPE STRING,
FUNDCUR TYPE STRING,
SPRAS TYPE STRING,
ETYPE TYPE STRING,
FDATE TYPE STRING,
JV_PARTN TYPE STRING,
RECID TYPE STRING,
CARRYOWNER TYPE STRING,
CARROWNER TYPE STRING,
OPERCODE TYPE STRING,
INTCOCD TYPE STRING,
JOA TYPE STRING,
RATETYPE TYPE STRING,
RATETYPER TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RGJMCD00_ALV2_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_RGJMCD00_ALV2_STR-TABNAME sy-vline 
WA_RGJMCD00_ALV2_STR-DDTEXT sy-vline 
WA_RGJMCD00_ALV2_STR-BUKRS sy-vline 
WA_RGJMCD00_ALV2_STR-VNAME sy-vline 
WA_RGJMCD00_ALV2_STR-EGRUP sy-vline 
WA_RGJMCD00_ALV2_STR-FUNDCUR sy-vline 
WA_RGJMCD00_ALV2_STR-SPRAS sy-vline 
WA_RGJMCD00_ALV2_STR-ETYPE sy-vline 
WA_RGJMCD00_ALV2_STR-FDATE sy-vline 
WA_RGJMCD00_ALV2_STR-JV_PARTN sy-vline 
WA_RGJMCD00_ALV2_STR-RECID sy-vline 
WA_RGJMCD00_ALV2_STR-CARRYOWNER sy-vline 
WA_RGJMCD00_ALV2_STR-CARROWNER sy-vline 
WA_RGJMCD00_ALV2_STR-OPERCODE sy-vline 
WA_RGJMCD00_ALV2_STR-INTCOCD sy-vline 
WA_RGJMCD00_ALV2_STR-JOA sy-vline 
WA_RGJMCD00_ALV2_STR-RATETYPE sy-vline 
WA_RGJMCD00_ALV2_STR-RATETYPER sy-vline      INTO ld_text SEPARATED BY SPACE.

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