ABAP Select data from SAP table RGJACD00_ALV1 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RGJACD00_ALV1 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 RGJACD00_ALV1. 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 RGJACD00_ALV1 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_RGJACD00_ALV1 TYPE STANDARD TABLE OF RGJACD00_ALV1,
      WA_RGJACD00_ALV1 TYPE RGJACD00_ALV1,
      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: <RGJACD00_ALV1> TYPE RGJACD00_ALV1.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RGJACD00_ALV1.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RGJACD00_ALV1
  INTO TABLE IT_RGJACD00_ALV1.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RGJACD00_ALV1
*  INTO TABLE @DATA(IT_RGJACD00_ALV12).
*--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_RGJACD00_ALV1 INDEX 1 INTO DATA(WA_RGJACD00_ALV12).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RGJACD00_ALV1 ASSIGNING <RGJACD00_ALV1>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RGJACD00_ALV1>-TABNAME = 1.
<RGJACD00_ALV1>-DDTEXT = 1.
<RGJACD00_ALV1>-BUKRS = 1.
<RGJACD00_ALV1>-VNAME = 1.
<RGJACD00_ALV1>-SPRAS = 1.

ENDLOOP.

LOOP AT IT_RGJACD00_ALV1 INTO WA_RGJACD00_ALV1.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RGJACD00_ALV1-EGRUP, sy-vline,
  WA_RGJACD00_ALV1-JV_PARTN, sy-vline,
  WA_RGJACD00_ALV1-RATETYPE, sy-vline,
  WA_RGJACD00_ALV1-RATETYPER, sy-vline,
  WA_RGJACD00_ALV1-PROJ, sy-vline,
  WA_RGJACD00_ALV1-STEPTYP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RGJACD00_ALV1 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_RGJACD00_ALV1 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_RGJACD00_ALV1 INTO WA_RGJACD00_ALV1.


*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_RGJACD00_ALV1-VNAME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RGJACD00_ALV1-VNAME.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ISOLA, internal->external for field SPRAS
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_RGJACD00_ALV1-SPRAS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RGJACD00_ALV1-SPRAS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field EGRUP
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RGJACD00_ALV1-EGRUP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RGJACD00_ALV1-EGRUP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field JV_PARTN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RGJACD00_ALV1-JV_PARTN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RGJACD00_ALV1-JV_PARTN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ABPSN, internal->external for field PROJ
CALL FUNCTION 'CONVERSION_EXIT_ABPSN_OUTPUT'
  EXPORTING
    input =                      WA_RGJACD00_ALV1-PROJ
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RGJACD00_ALV1-PROJ.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SEQNUM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RGJACD00_ALV1-SEQNUM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RGJACD00_ALV1-SEQNUM.
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_RGJACD00_ALV1_STR, 
TABNAME TYPE STRING,
DDTEXT TYPE STRING,
BUKRS TYPE STRING,
VNAME TYPE STRING,
SPRAS TYPE STRING,
EGRUP TYPE STRING,
JV_PARTN TYPE STRING,
RATETYPE TYPE STRING,
RATETYPER TYPE STRING,
PROJ TYPE STRING,
STEPTYP TYPE STRING,
DRSTAT TYPE STRING,
PRSTAT TYPE STRING,
SEQNUM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RGJACD00_ALV1_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_RGJACD00_ALV1_STR-TABNAME sy-vline 
WA_RGJACD00_ALV1_STR-DDTEXT sy-vline 
WA_RGJACD00_ALV1_STR-BUKRS sy-vline 
WA_RGJACD00_ALV1_STR-VNAME sy-vline 
WA_RGJACD00_ALV1_STR-SPRAS sy-vline 
WA_RGJACD00_ALV1_STR-EGRUP sy-vline 
WA_RGJACD00_ALV1_STR-JV_PARTN sy-vline 
WA_RGJACD00_ALV1_STR-RATETYPE sy-vline 
WA_RGJACD00_ALV1_STR-RATETYPER sy-vline 
WA_RGJACD00_ALV1_STR-PROJ sy-vline 
WA_RGJACD00_ALV1_STR-STEPTYP sy-vline 
WA_RGJACD00_ALV1_STR-DRSTAT sy-vline 
WA_RGJACD00_ALV1_STR-PRSTAT sy-vline 
WA_RGJACD00_ALV1_STR-SEQNUM sy-vline      INTO ld_text SEPARATED BY SPACE.

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