ABAP Select data from SAP table PSTKLVLMNGCF 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 PSTKLVLMNGCF 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 PSTKLVLMNGCF. 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 PSTKLVLMNGCF 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_PSTKLVLMNGCF TYPE STANDARD TABLE OF PSTKLVLMNGCF,
      WA_PSTKLVLMNGCF TYPE PSTKLVLMNGCF,
      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: <PSTKLVLMNGCF> TYPE PSTKLVLMNGCF.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PSTKLVLMNGCF
*  INTO TABLE @DATA(IT_PSTKLVLMNGCF2).
*--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_PSTKLVLMNGCF INDEX 1 INTO DATA(WA_PSTKLVLMNGCF2).


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

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

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PSTKLVLMNGCF-PROPOSALVERSION, sy-vline,
  WA_PSTKLVLMNGCF-CURRENTREDZONE, sy-vline,
  WA_PSTKLVLMNGCF-CURRENTLEADTIME, sy-vline,
  WA_PSTKLVLMNGCF-CURRENTLEADTIMEFACTOR, sy-vline,
  WA_PSTKLVLMNGCF-CURRENTVARIABILITYFACTOR, sy-vline,
  WA_PSTKLVLMNGCF-BUFFERLEVELSTARTDATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PSTKLVLMNGCF 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_PSTKLVLMNGCF 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_PSTKLVLMNGCF INTO WA_PSTKLVLMNGCF.


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

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

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

*Conversion exit CUNIT, internal->external for field PROPOSEDMATLVARIABILITYUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_PSTKLVLMNGCF-PROPOSEDMATLVARIABILITYUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PSTKLVLMNGCF-PROPOSEDMATLVARIABILITYUNIT.
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_PSTKLVLMNGCF_STR, 
MANDT TYPE STRING,
MATERIAL TYPE STRING,
PLANT TYPE STRING,
MRPAREA TYPE STRING,
PROPOSALSTARTDATE TYPE STRING,
PROPOSALVERSION TYPE STRING,
CURRENTREDZONE TYPE STRING,
CURRENTLEADTIME TYPE STRING,
CURRENTLEADTIMEFACTOR TYPE STRING,
CURRENTVARIABILITYFACTOR TYPE STRING,
BUFFERLEVELSTARTDATE TYPE STRING,
CURRENTGREENZONE TYPE STRING,
CURRENTYELLOWZONE TYPE STRING,
CURRENTAVGDAILYUSAGE TYPE STRING,
BILLOFMATERIALUUID TYPE STRING,
PROPOSEDBOMUUID TYPE STRING,
PROPOSALENDDATE TYPE STRING,
PROPOSEDAVERAGEDAILYUSAGE TYPE STRING,
PROPOSEDGREENZONE TYPE STRING,
PROPOSEDREDZONE TYPE STRING,
PROPOSEDYELLOWZONE TYPE STRING,
PROPOSEDLEADTIME TYPE STRING,
PROPOSEDLEADTIMEFACTOR TYPE STRING,
PROPOSEDVARIABILITYFACTOR TYPE STRING,
STOCKLEVELPROPOSALID TYPE STRING,
STOCKLEVELPROPOSALSTATUS TYPE STRING,
AVGDAILYUSAGEUNIT TYPE STRING,
DIFFERENCEINDAYS TYPE STRING,
VARIABILITYQUANTITY TYPE STRING,
VARIABILITYUNIT TYPE STRING,
REPLENISHMENTLEADTIMEVALUE TYPE STRING,
CURRENTMATLLEADTIMECODE TYPE STRING,
CURRENTMATLVARIABILITYCODE TYPE STRING,
PROPOSEDMATLVARIABILITYCODE TYPE STRING,
PROPOSEDMATLVARIABILITYQTY TYPE STRING,
PROPOSEDMATLVARIABILITYUNIT TYPE STRING,
PROPOSEDMATLLEADTIMECODE TYPE STRING,
PROPOSEDMATLLEADTIME TYPE STRING,
TOTALNOOFDAYS TYPE STRING,
DIFFERENCEINDAYSDESC TYPE STRING,
REDZONEDIFFERENCE TYPE STRING,
YELLOWZONEDIFFERENCE TYPE STRING,
GREENZONEDIFFERENCE TYPE STRING,
AVGDAILYUSAGEDIFFERENCE TYPE STRING,
AVGDAILYUSAGEDEVIATIONRATE TYPE STRING,
LEADTIMEFACTORDIFFERENCE TYPE STRING,
LEADTIMEFACTORDEVIATIONRATE TYPE STRING,
LEADTIMEDIFFERENCE TYPE STRING,
LEADTIMEDEVIATIONRATE TYPE STRING,
VARIABILITYFACTORDIFFERENCE TYPE STRING,
VARIABILITYFACTORDEVIATIONRATE TYPE STRING,
MATLPROPOSEDMAXSTOCK TYPE STRING,
MAXSTOCKDIFFERENCE TYPE STRING,
MATERIALMAXSTOCKLEVELQUANTITY TYPE STRING,
MATLPRPSLADJMTFCTRISAPPLIED TYPE STRING,
PROPOSEDMATERIALBUFFERPROFILE TYPE STRING,
PROPOSEDMATLBUFFERPROFILETEXT TYPE STRING,
PROCUREMENTTYPEDESCRIPTION TYPE STRING,
VARIABILITYDESCRIPTION TYPE STRING,
REPLENISHMENTLEADTIMEDESC TYPE STRING,
ISMINORDERQTYCONSIDERED TYPE STRING,
HORIZONDAYSINPAST TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PSTKLVLMNGCF_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_PSTKLVLMNGCF_STR-MANDT sy-vline 
WA_PSTKLVLMNGCF_STR-MATERIAL sy-vline 
WA_PSTKLVLMNGCF_STR-PLANT sy-vline 
WA_PSTKLVLMNGCF_STR-MRPAREA sy-vline 
WA_PSTKLVLMNGCF_STR-PROPOSALSTARTDATE sy-vline 
WA_PSTKLVLMNGCF_STR-PROPOSALVERSION sy-vline 
WA_PSTKLVLMNGCF_STR-CURRENTREDZONE sy-vline 
WA_PSTKLVLMNGCF_STR-CURRENTLEADTIME sy-vline 
WA_PSTKLVLMNGCF_STR-CURRENTLEADTIMEFACTOR sy-vline 
WA_PSTKLVLMNGCF_STR-CURRENTVARIABILITYFACTOR sy-vline 
WA_PSTKLVLMNGCF_STR-BUFFERLEVELSTARTDATE sy-vline 
WA_PSTKLVLMNGCF_STR-CURRENTGREENZONE sy-vline 
WA_PSTKLVLMNGCF_STR-CURRENTYELLOWZONE sy-vline 
WA_PSTKLVLMNGCF_STR-CURRENTAVGDAILYUSAGE sy-vline 
WA_PSTKLVLMNGCF_STR-BILLOFMATERIALUUID sy-vline 
WA_PSTKLVLMNGCF_STR-PROPOSEDBOMUUID sy-vline 
WA_PSTKLVLMNGCF_STR-PROPOSALENDDATE sy-vline 
WA_PSTKLVLMNGCF_STR-PROPOSEDAVERAGEDAILYUSAGE sy-vline 
WA_PSTKLVLMNGCF_STR-PROPOSEDGREENZONE sy-vline 
WA_PSTKLVLMNGCF_STR-PROPOSEDREDZONE sy-vline 
WA_PSTKLVLMNGCF_STR-PROPOSEDYELLOWZONE sy-vline 
WA_PSTKLVLMNGCF_STR-PROPOSEDLEADTIME sy-vline 
WA_PSTKLVLMNGCF_STR-PROPOSEDLEADTIMEFACTOR sy-vline 
WA_PSTKLVLMNGCF_STR-PROPOSEDVARIABILITYFACTOR sy-vline 
WA_PSTKLVLMNGCF_STR-STOCKLEVELPROPOSALID sy-vline 
WA_PSTKLVLMNGCF_STR-STOCKLEVELPROPOSALSTATUS sy-vline 
WA_PSTKLVLMNGCF_STR-AVGDAILYUSAGEUNIT sy-vline 
WA_PSTKLVLMNGCF_STR-DIFFERENCEINDAYS sy-vline 
WA_PSTKLVLMNGCF_STR-VARIABILITYQUANTITY sy-vline 
WA_PSTKLVLMNGCF_STR-VARIABILITYUNIT sy-vline 
WA_PSTKLVLMNGCF_STR-REPLENISHMENTLEADTIMEVALUE sy-vline 
WA_PSTKLVLMNGCF_STR-CURRENTMATLLEADTIMECODE sy-vline 
WA_PSTKLVLMNGCF_STR-CURRENTMATLVARIABILITYCODE sy-vline 
WA_PSTKLVLMNGCF_STR-PROPOSEDMATLVARIABILITYCODE sy-vline 
WA_PSTKLVLMNGCF_STR-PROPOSEDMATLVARIABILITYQTY sy-vline 
WA_PSTKLVLMNGCF_STR-PROPOSEDMATLVARIABILITYUNIT sy-vline 
WA_PSTKLVLMNGCF_STR-PROPOSEDMATLLEADTIMECODE sy-vline 
WA_PSTKLVLMNGCF_STR-PROPOSEDMATLLEADTIME sy-vline 
WA_PSTKLVLMNGCF_STR-TOTALNOOFDAYS sy-vline 
WA_PSTKLVLMNGCF_STR-DIFFERENCEINDAYSDESC sy-vline 
WA_PSTKLVLMNGCF_STR-REDZONEDIFFERENCE sy-vline 
WA_PSTKLVLMNGCF_STR-YELLOWZONEDIFFERENCE sy-vline 
WA_PSTKLVLMNGCF_STR-GREENZONEDIFFERENCE sy-vline 
WA_PSTKLVLMNGCF_STR-AVGDAILYUSAGEDIFFERENCE sy-vline 
WA_PSTKLVLMNGCF_STR-AVGDAILYUSAGEDEVIATIONRATE sy-vline 
WA_PSTKLVLMNGCF_STR-LEADTIMEFACTORDIFFERENCE sy-vline 
WA_PSTKLVLMNGCF_STR-LEADTIMEFACTORDEVIATIONRATE sy-vline 
WA_PSTKLVLMNGCF_STR-LEADTIMEDIFFERENCE sy-vline 
WA_PSTKLVLMNGCF_STR-LEADTIMEDEVIATIONRATE sy-vline 
WA_PSTKLVLMNGCF_STR-VARIABILITYFACTORDIFFERENCE sy-vline 
WA_PSTKLVLMNGCF_STR-VARIABILITYFACTORDEVIATIONRATE sy-vline 
WA_PSTKLVLMNGCF_STR-MATLPROPOSEDMAXSTOCK sy-vline 
WA_PSTKLVLMNGCF_STR-MAXSTOCKDIFFERENCE sy-vline 
WA_PSTKLVLMNGCF_STR-MATERIALMAXSTOCKLEVELQUANTITY sy-vline 
WA_PSTKLVLMNGCF_STR-MATLPRPSLADJMTFCTRISAPPLIED sy-vline 
WA_PSTKLVLMNGCF_STR-PROPOSEDMATERIALBUFFERPROFILE sy-vline 
WA_PSTKLVLMNGCF_STR-PROPOSEDMATLBUFFERPROFILETEXT sy-vline 
WA_PSTKLVLMNGCF_STR-PROCUREMENTTYPEDESCRIPTION sy-vline 
WA_PSTKLVLMNGCF_STR-VARIABILITYDESCRIPTION sy-vline 
WA_PSTKLVLMNGCF_STR-REPLENISHMENTLEADTIMEDESC sy-vline 
WA_PSTKLVLMNGCF_STR-ISMINORDERQTYCONSIDERED sy-vline 
WA_PSTKLVLMNGCF_STR-HORIZONDAYSINPAST sy-vline      INTO ld_text SEPARATED BY SPACE.

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