ABAP Select data from SAP table IDDTMDEPDNTSTBUF into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IDDTMDEPDNTSTBUF
*  INTO TABLE @DATA(IT_IDDTMDEPDNTSTBUF2).
*--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_IDDTMDEPDNTSTBUF INDEX 1 INTO DATA(WA_IDDTMDEPDNTSTBUF2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IDDTMDEPDNTSTBUF>-MANDT = 1.
<IDDTMDEPDNTSTBUF>-MATERIAL = 1.
<IDDTMDEPDNTSTBUF>-PLANT = 1.
<IDDTMDEPDNTSTBUF>-MRPAREA = 1.
<IDDTMDEPDNTSTBUF>-BUFFERLEVELSTARTDATE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IDDTMDEPDNTSTBUF-BUFFERLEVELENDDATE, sy-vline,
  WA_IDDTMDEPDNTSTBUF-MATERIALSAFETYSTOCKQTY, sy-vline,
  WA_IDDTMDEPDNTSTBUF-REORDERTHRESHOLDQUANTITY, sy-vline,
  WA_IDDTMDEPDNTSTBUF-MATERIALMAXSTOCKLEVELQUANTITY, sy-vline,
  WA_IDDTMDEPDNTSTBUF-MATERIALTARGETSTOCKLVLQUANTITY, sy-vline,
  WA_IDDTMDEPDNTSTBUF-TARGETSUPPLYDURATIONINDAYS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IDDTMDEPDNTSTBUF 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_IDDTMDEPDNTSTBUF 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_IDDTMDEPDNTSTBUF INTO WA_IDDTMDEPDNTSTBUF.


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

*Conversion exit CUNIT, internal->external for field BASEUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_IDDTMDEPDNTSTBUF-BASEUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IDDTMDEPDNTSTBUF-BASEUNIT.
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_IDDTMDEPDNTSTBUF_STR, 
MANDT TYPE STRING,
MATERIAL TYPE STRING,
PLANT TYPE STRING,
MRPAREA TYPE STRING,
BUFFERLEVELSTARTDATE TYPE STRING,
BUFFERLEVELENDDATE TYPE STRING,
MATERIALSAFETYSTOCKQTY TYPE STRING,
REORDERTHRESHOLDQUANTITY TYPE STRING,
MATERIALMAXSTOCKLEVELQUANTITY TYPE STRING,
MATERIALTARGETSTOCKLVLQUANTITY TYPE STRING,
TARGETSUPPLYDURATIONINDAYS TYPE STRING,
MAXSUPPLYDURATIONINDAYS TYPE STRING,
SAFETYSUPPLYDURATIONINDAYS TYPE STRING,
BASEUNIT TYPE STRING,
CHANGEMODE TYPE STRING,
STOCKLEVELPROPOSALID TYPE STRING,
PROPOSALVERSION TYPE STRING,
PROPOSALSTARTDATE TYPE STRING,
CREATEDBYUSER TYPE STRING,
LASTCHANGEDBYUSER TYPE STRING,
CREATIONDATETIME TYPE STRING,
LASTCHANGEDATETIME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IDDTMDEPDNTSTBUF_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_IDDTMDEPDNTSTBUF_STR-MANDT sy-vline 
WA_IDDTMDEPDNTSTBUF_STR-MATERIAL sy-vline 
WA_IDDTMDEPDNTSTBUF_STR-PLANT sy-vline 
WA_IDDTMDEPDNTSTBUF_STR-MRPAREA sy-vline 
WA_IDDTMDEPDNTSTBUF_STR-BUFFERLEVELSTARTDATE sy-vline 
WA_IDDTMDEPDNTSTBUF_STR-BUFFERLEVELENDDATE sy-vline 
WA_IDDTMDEPDNTSTBUF_STR-MATERIALSAFETYSTOCKQTY sy-vline 
WA_IDDTMDEPDNTSTBUF_STR-REORDERTHRESHOLDQUANTITY sy-vline 
WA_IDDTMDEPDNTSTBUF_STR-MATERIALMAXSTOCKLEVELQUANTITY sy-vline 
WA_IDDTMDEPDNTSTBUF_STR-MATERIALTARGETSTOCKLVLQUANTITY sy-vline 
WA_IDDTMDEPDNTSTBUF_STR-TARGETSUPPLYDURATIONINDAYS sy-vline 
WA_IDDTMDEPDNTSTBUF_STR-MAXSUPPLYDURATIONINDAYS sy-vline 
WA_IDDTMDEPDNTSTBUF_STR-SAFETYSUPPLYDURATIONINDAYS sy-vline 
WA_IDDTMDEPDNTSTBUF_STR-BASEUNIT sy-vline 
WA_IDDTMDEPDNTSTBUF_STR-CHANGEMODE sy-vline 
WA_IDDTMDEPDNTSTBUF_STR-STOCKLEVELPROPOSALID sy-vline 
WA_IDDTMDEPDNTSTBUF_STR-PROPOSALVERSION sy-vline 
WA_IDDTMDEPDNTSTBUF_STR-PROPOSALSTARTDATE sy-vline 
WA_IDDTMDEPDNTSTBUF_STR-CREATEDBYUSER sy-vline 
WA_IDDTMDEPDNTSTBUF_STR-LASTCHANGEDBYUSER sy-vline 
WA_IDDTMDEPDNTSTBUF_STR-CREATIONDATETIME sy-vline 
WA_IDDTMDEPDNTSTBUF_STR-LASTCHANGEDATETIME sy-vline      INTO ld_text SEPARATED BY SPACE.

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