ABAP Select data from SAP table IDDSTKLVLPRPSL 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 IDDSTKLVLPRPSL 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 IDDSTKLVLPRPSL. 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 IDDSTKLVLPRPSL 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_IDDSTKLVLPRPSL TYPE STANDARD TABLE OF IDDSTKLVLPRPSL,
      WA_IDDSTKLVLPRPSL TYPE IDDSTKLVLPRPSL,
      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: <IDDSTKLVLPRPSL> TYPE IDDSTKLVLPRPSL.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IDDSTKLVLPRPSL
*  INTO TABLE @DATA(IT_IDDSTKLVLPRPSL2).
*--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_IDDSTKLVLPRPSL INDEX 1 INTO DATA(WA_IDDSTKLVLPRPSL2).


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

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

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IDDSTKLVLPRPSL-PROPOSALVERSION, sy-vline,
  WA_IDDSTKLVLPRPSL-PROPOSALENDDATE, sy-vline,
  WA_IDDSTKLVLPRPSL-STOCKLEVELPROPOSALID, sy-vline,
  WA_IDDSTKLVLPRPSL-MATERIALGROUP, sy-vline,
  WA_IDDSTKLVLPRPSL-PURCHASINGGROUP, sy-vline,
  WA_IDDSTKLVLPRPSL-CONSUMPTIONCODE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IDDSTKLVLPRPSL 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_IDDSTKLVLPRPSL 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_IDDSTKLVLPRPSL INTO WA_IDDSTKLVLPRPSL.


*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_IDDSTKLVLPRPSL-MATERIAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IDDSTKLVLPRPSL-MATERIAL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field VARIABILITYUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_IDDSTKLVLPRPSL-VARIABILITYUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IDDSTKLVLPRPSL-VARIABILITYUNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MINORDERQTYUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_IDDSTKLVLPRPSL-MINORDERQTYUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IDDSTKLVLPRPSL-MINORDERQTYUNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field AVGDAILYUSAGEUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_IDDSTKLVLPRPSL-AVGDAILYUSAGEUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IDDSTKLVLPRPSL-AVGDAILYUSAGEUNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MATERIALBASEUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_IDDSTKLVLPRPSL-MATERIALBASEUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IDDSTKLVLPRPSL-MATERIALBASEUNIT.
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_IDDSTKLVLPRPSL_STR, 
MANDT TYPE STRING,
MATERIAL TYPE STRING,
PLANT TYPE STRING,
MRPAREA TYPE STRING,
PROPOSALSTARTDATE TYPE STRING,
PROPOSALVERSION TYPE STRING,
PROPOSALENDDATE TYPE STRING,
STOCKLEVELPROPOSALID TYPE STRING,
MATERIALGROUP TYPE STRING,
PURCHASINGGROUP TYPE STRING,
CONSUMPTIONCODE TYPE STRING,
CONSUMPTIONVALUE TYPE STRING,
CURRENCY TYPE STRING,
VARIABILITYCODE TYPE STRING,
VARIABILITYQUANTITY TYPE STRING,
VARIABILITYUNIT TYPE STRING,
REPLENISHMENTLEADTIMECODE TYPE STRING,
PROCUREMENTTYPE TYPE STRING,
REPLENISHMENTLEADTIMEVALUE TYPE STRING,
BOMUSAGECODE TYPE STRING,
BOMUSAGEVALUE TYPE STRING,
INDIVIDUALLEADTIME TYPE STRING,
DECOUPLEDLEADTIME TYPE STRING,
SOURCEOFSUPPLY TYPE STRING,
SOSTYPE TYPE STRING,
LEADTIMEFACTOR TYPE STRING,
VARIABILITYFACTOR TYPE STRING,
STOCKLEVELPROPOSALSTATUS TYPE STRING,
PROPOSALSTATUSCHANGEDATE TYPE STRING,
ISMINORDERQTYCONSIDERED TYPE STRING,
MINIMUMORDERQUANTITY TYPE STRING,
MINORDERQTYUNIT TYPE STRING,
PREVREDZONEADJUSTMENTFCTR TYPE STRING,
PREVYELLOWZONEADJUSTMENTFCTR TYPE STRING,
PREVGREENZONEADJUSTMENTFCTR TYPE STRING,
CURREDZONEADJUSTMENTFCTR TYPE STRING,
CURYELLOWZONEADJUSTMENTFCTR TYPE STRING,
CURGREENZONEADJUSTMENTFCTR TYPE STRING,
ORDERCYCLE TYPE STRING,
BILLOFMATERIALUUID TYPE STRING,
BOMEXPLOSIONDATE TYPE STRING,
CREATEDBYUSER TYPE STRING,
LASTCHANGEDBYUSER TYPE STRING,
CREATIONDATETIME TYPE STRING,
LASTCHANGEDATETIME TYPE STRING,
PROPOSEDREDZONE TYPE STRING,
PROPOSEDYELLOWZONE TYPE STRING,
PROPOSEDGREENZONE TYPE STRING,
ORIGLPROPOSEDREDZONE TYPE STRING,
ORIGLPROPOSEDYELLOWZONE TYPE STRING,
ORIGLPROPOSEDGREENZONE TYPE STRING,
AVERAGEDAILYUSAGE TYPE STRING,
AVGDAILYUSAGEUNIT TYPE STRING,
MATERIALBASEUNIT TYPE STRING,
MRPGROUP TYPE STRING,
MRPCONTROLLER TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IDDSTKLVLPRPSL_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_IDDSTKLVLPRPSL_STR-MANDT sy-vline 
WA_IDDSTKLVLPRPSL_STR-MATERIAL sy-vline 
WA_IDDSTKLVLPRPSL_STR-PLANT sy-vline 
WA_IDDSTKLVLPRPSL_STR-MRPAREA sy-vline 
WA_IDDSTKLVLPRPSL_STR-PROPOSALSTARTDATE sy-vline 
WA_IDDSTKLVLPRPSL_STR-PROPOSALVERSION sy-vline 
WA_IDDSTKLVLPRPSL_STR-PROPOSALENDDATE sy-vline 
WA_IDDSTKLVLPRPSL_STR-STOCKLEVELPROPOSALID sy-vline 
WA_IDDSTKLVLPRPSL_STR-MATERIALGROUP sy-vline 
WA_IDDSTKLVLPRPSL_STR-PURCHASINGGROUP sy-vline 
WA_IDDSTKLVLPRPSL_STR-CONSUMPTIONCODE sy-vline 
WA_IDDSTKLVLPRPSL_STR-CONSUMPTIONVALUE sy-vline 
WA_IDDSTKLVLPRPSL_STR-CURRENCY sy-vline 
WA_IDDSTKLVLPRPSL_STR-VARIABILITYCODE sy-vline 
WA_IDDSTKLVLPRPSL_STR-VARIABILITYQUANTITY sy-vline 
WA_IDDSTKLVLPRPSL_STR-VARIABILITYUNIT sy-vline 
WA_IDDSTKLVLPRPSL_STR-REPLENISHMENTLEADTIMECODE sy-vline 
WA_IDDSTKLVLPRPSL_STR-PROCUREMENTTYPE sy-vline 
WA_IDDSTKLVLPRPSL_STR-REPLENISHMENTLEADTIMEVALUE sy-vline 
WA_IDDSTKLVLPRPSL_STR-BOMUSAGECODE sy-vline 
WA_IDDSTKLVLPRPSL_STR-BOMUSAGEVALUE sy-vline 
WA_IDDSTKLVLPRPSL_STR-INDIVIDUALLEADTIME sy-vline 
WA_IDDSTKLVLPRPSL_STR-DECOUPLEDLEADTIME sy-vline 
WA_IDDSTKLVLPRPSL_STR-SOURCEOFSUPPLY sy-vline 
WA_IDDSTKLVLPRPSL_STR-SOSTYPE sy-vline 
WA_IDDSTKLVLPRPSL_STR-LEADTIMEFACTOR sy-vline 
WA_IDDSTKLVLPRPSL_STR-VARIABILITYFACTOR sy-vline 
WA_IDDSTKLVLPRPSL_STR-STOCKLEVELPROPOSALSTATUS sy-vline 
WA_IDDSTKLVLPRPSL_STR-PROPOSALSTATUSCHANGEDATE sy-vline 
WA_IDDSTKLVLPRPSL_STR-ISMINORDERQTYCONSIDERED sy-vline 
WA_IDDSTKLVLPRPSL_STR-MINIMUMORDERQUANTITY sy-vline 
WA_IDDSTKLVLPRPSL_STR-MINORDERQTYUNIT sy-vline 
WA_IDDSTKLVLPRPSL_STR-PREVREDZONEADJUSTMENTFCTR sy-vline 
WA_IDDSTKLVLPRPSL_STR-PREVYELLOWZONEADJUSTMENTFCTR sy-vline 
WA_IDDSTKLVLPRPSL_STR-PREVGREENZONEADJUSTMENTFCTR sy-vline 
WA_IDDSTKLVLPRPSL_STR-CURREDZONEADJUSTMENTFCTR sy-vline 
WA_IDDSTKLVLPRPSL_STR-CURYELLOWZONEADJUSTMENTFCTR sy-vline 
WA_IDDSTKLVLPRPSL_STR-CURGREENZONEADJUSTMENTFCTR sy-vline 
WA_IDDSTKLVLPRPSL_STR-ORDERCYCLE sy-vline 
WA_IDDSTKLVLPRPSL_STR-BILLOFMATERIALUUID sy-vline 
WA_IDDSTKLVLPRPSL_STR-BOMEXPLOSIONDATE sy-vline 
WA_IDDSTKLVLPRPSL_STR-CREATEDBYUSER sy-vline 
WA_IDDSTKLVLPRPSL_STR-LASTCHANGEDBYUSER sy-vline 
WA_IDDSTKLVLPRPSL_STR-CREATIONDATETIME sy-vline 
WA_IDDSTKLVLPRPSL_STR-LASTCHANGEDATETIME sy-vline 
WA_IDDSTKLVLPRPSL_STR-PROPOSEDREDZONE sy-vline 
WA_IDDSTKLVLPRPSL_STR-PROPOSEDYELLOWZONE sy-vline 
WA_IDDSTKLVLPRPSL_STR-PROPOSEDGREENZONE sy-vline 
WA_IDDSTKLVLPRPSL_STR-ORIGLPROPOSEDREDZONE sy-vline 
WA_IDDSTKLVLPRPSL_STR-ORIGLPROPOSEDYELLOWZONE sy-vline 
WA_IDDSTKLVLPRPSL_STR-ORIGLPROPOSEDGREENZONE sy-vline 
WA_IDDSTKLVLPRPSL_STR-AVERAGEDAILYUSAGE sy-vline 
WA_IDDSTKLVLPRPSL_STR-AVGDAILYUSAGEUNIT sy-vline 
WA_IDDSTKLVLPRPSL_STR-MATERIALBASEUNIT sy-vline 
WA_IDDSTKLVLPRPSL_STR-MRPGROUP sy-vline 
WA_IDDSTKLVLPRPSL_STR-MRPCONTROLLER sy-vline      INTO ld_text SEPARATED BY SPACE.

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