ABAP Select data from SAP table RJVSDADMIX into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RJVSDADMIX 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 RJVSDADMIX. 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 RJVSDADMIX 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_RJVSDADMIX TYPE STANDARD TABLE OF RJVSDADMIX,
      WA_RJVSDADMIX TYPE RJVSDADMIX,
      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: <RJVSDADMIX> TYPE RJVSDADMIX.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RJVSDADMIX
*  INTO TABLE @DATA(IT_RJVSDADMIX2).
*--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_RJVSDADMIX INDEX 1 INTO DATA(WA_RJVSDADMIX2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RJVSDADMIX>-ADMIX = 1.
<RJVSDADMIX>-MANDT = 1.
<RJVSDADMIX>-ISSUE = 1.
<RJVSDADMIX>-SPLIT = 1.
<RJVSDADMIX>-SHORTDESCRIPTION = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RJVSDADMIX-LONGDESCRIPTION, sy-vline,
  WA_RJVSDADMIX-WERK, sy-vline,
  WA_RJVSDADMIX-XSPLIT_MANUELL, sy-vline,
  WA_RJVSDADMIX-MATNR, sy-vline,
  WA_RJVSDADMIX-STLNR, sy-vline,
  WA_RJVSDADMIX-STLAL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RJVSDADMIX 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_RJVSDADMIX 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_RJVSDADMIX INTO WA_RJVSDADMIX.


*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 ISSUE
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_RJVSDADMIX-ISSUE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJVSDADMIX-ISSUE.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit NUMCV, internal->external for field STLNR
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_RJVSDADMIX-STLNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJVSDADMIX-STLNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field STLAL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RJVSDADMIX-STLAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJVSDADMIX-STLAL.
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_RJVSDADMIX_STR, 
ADMIX TYPE STRING,
MANDT TYPE STRING,
ISSUE TYPE STRING,
SPLIT TYPE STRING,
SHORTDESCRIPTION TYPE STRING,
LONGDESCRIPTION TYPE STRING,
WERK TYPE STRING,
XSPLIT_MANUELL TYPE STRING,
MATNR TYPE STRING,
STLNR TYPE STRING,
STLAL TYPE STRING,
DEFAULTMIX TYPE STRING,
PLANNEDMIX TYPE STRING,
FROMPLANNEDMIX TYPE STRING,
ERFUSER TYPE STRING,
ERFDATE TYPE STRING,
ERFTIME TYPE STRING,
AENUSER TYPE STRING,
AENDATE TYPE STRING,
AENTIME TYPE STRING,
PARTS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RJVSDADMIX_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_RJVSDADMIX_STR-ADMIX sy-vline 
WA_RJVSDADMIX_STR-MANDT sy-vline 
WA_RJVSDADMIX_STR-ISSUE sy-vline 
WA_RJVSDADMIX_STR-SPLIT sy-vline 
WA_RJVSDADMIX_STR-SHORTDESCRIPTION sy-vline 
WA_RJVSDADMIX_STR-LONGDESCRIPTION sy-vline 
WA_RJVSDADMIX_STR-WERK sy-vline 
WA_RJVSDADMIX_STR-XSPLIT_MANUELL sy-vline 
WA_RJVSDADMIX_STR-MATNR sy-vline 
WA_RJVSDADMIX_STR-STLNR sy-vline 
WA_RJVSDADMIX_STR-STLAL sy-vline 
WA_RJVSDADMIX_STR-DEFAULTMIX sy-vline 
WA_RJVSDADMIX_STR-PLANNEDMIX sy-vline 
WA_RJVSDADMIX_STR-FROMPLANNEDMIX sy-vline 
WA_RJVSDADMIX_STR-ERFUSER sy-vline 
WA_RJVSDADMIX_STR-ERFDATE sy-vline 
WA_RJVSDADMIX_STR-ERFTIME sy-vline 
WA_RJVSDADMIX_STR-AENUSER sy-vline 
WA_RJVSDADMIX_STR-AENDATE sy-vline 
WA_RJVSDADMIX_STR-AENTIME sy-vline 
WA_RJVSDADMIX_STR-PARTS sy-vline      INTO ld_text SEPARATED BY SPACE.

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