ABAP Select data from SAP table PBUFLVLMNGCF into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PBUFLVLMNGCF
*  INTO TABLE @DATA(IT_PBUFLVLMNGCF2).
*--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_PBUFLVLMNGCF INDEX 1 INTO DATA(WA_PBUFLVLMNGCF2).


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

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

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PBUFLVLMNGCF-PROPOSALVERSION, sy-vline,
  WA_PBUFLVLMNGCF-PROPOSALSTATUSCHANGEDATE, sy-vline,
  WA_PBUFLVLMNGCF-PROPOSALMODE, sy-vline,
  WA_PBUFLVLMNGCF-PROPOSALMODEDESCRIPTION, sy-vline,
  WA_PBUFLVLMNGCF-ISMINORDERQTYCONSIDERED, sy-vline,
  WA_PBUFLVLMNGCF-AVERAGEDAILYUSAGE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PBUFLVLMNGCF 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_PBUFLVLMNGCF 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_PBUFLVLMNGCF INTO WA_PBUFLVLMNGCF.


*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_PBUFLVLMNGCF-MATERIAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PBUFLVLMNGCF-MATERIAL.
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_PBUFLVLMNGCF_STR, 
MANDT TYPE STRING,
MATERIAL TYPE STRING,
PLANT TYPE STRING,
MRPAREA TYPE STRING,
PROPOSALSTARTDATE TYPE STRING,
PROPOSALVERSION TYPE STRING,
PROPOSALSTATUSCHANGEDATE TYPE STRING,
PROPOSALMODE TYPE STRING,
PROPOSALMODEDESCRIPTION TYPE STRING,
ISMINORDERQTYCONSIDERED TYPE STRING,
AVERAGEDAILYUSAGE TYPE STRING,
AVERAGEDAILYUSAGEMODE TYPE STRING,
AVERAGEDAILYUSAGEMODEDESC TYPE STRING,
VARIABILITYFACTOR TYPE STRING,
DECOUPLEDLEADTIME TYPE STRING,
PURCHASINGGROUP TYPE STRING,
MRPGROUP TYPE STRING,
HORIZONDAYSINPAST TYPE STRING,
HORIZONDAYSINFUTURE TYPE STRING,
CONSUMPTIONCODE TYPE STRING,
REPLENISHMENTLEADTIMECODE TYPE STRING,
REPLENISHMENTLEADTIMEVALUE TYPE STRING,
BOMUSAGECODE TYPE STRING,
VARIABILITYCODE TYPE STRING,
VARIABILITYQUANTITY TYPE STRING,
PROCUREMENTTYPE TYPE STRING,
BOMEXPLOSIONDATE TYPE STRING,
MAXSTOCKDEVIATIONRATE TYPE STRING,
MAXSTOCKDIFFERENCE TYPE STRING,
MATLPROPOSEDMAXSTOCK TYPE STRING,
MATERIALMAXSTOCKLEVELQUANTITY TYPE STRING,
MATLPRPSLADJMTFCTRISAPPLIED TYPE STRING,
MINORDERQUANTITYHASCHANGED TYPE STRING,
PRODUCTPROFILECHANGECATEGORY TYPE STRING,
PRODUCTPROFILEHASCHANGED TYPE STRING,
ADJUSTMENTTYPE TYPE STRING,
ISPROPOSALADOPTED TYPE STRING,
ISINPROCESS TYPE STRING,
NORMALIZEDCURRENTREDZONE TYPE STRING,
NORMALIZEDCURRENTYELLOWZONE TYPE STRING,
NORMALIZEDCURRENTGREENZONE TYPE STRING,
NORMALIZEDPROPOSEDREDZONE TYPE STRING,
NORMALIZEDPROPOSEDYELLOWZONE TYPE STRING,
NORMALIZEDPROPOSEDGREENZONE TYPE STRING,
DIFFERENCEINDAYS TYPE STRING,
LEADTIMEDIFFERENCE TYPE STRING,
VARIABILITYFACTORDIFFERENCE TYPE STRING,
VARIABILITYFACTORDEVIATIONRATE TYPE STRING,
LEADTIMEDEVIATIONRATE TYPE STRING,
PROPOSALRUNISSUSPENDED TYPE STRING,
PROPOSALRUNISNOTSUSPENDED TYPE STRING,
AVGDAILYUSAGEDEVIATIONRATE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PBUFLVLMNGCF_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_PBUFLVLMNGCF_STR-MANDT sy-vline 
WA_PBUFLVLMNGCF_STR-MATERIAL sy-vline 
WA_PBUFLVLMNGCF_STR-PLANT sy-vline 
WA_PBUFLVLMNGCF_STR-MRPAREA sy-vline 
WA_PBUFLVLMNGCF_STR-PROPOSALSTARTDATE sy-vline 
WA_PBUFLVLMNGCF_STR-PROPOSALVERSION sy-vline 
WA_PBUFLVLMNGCF_STR-PROPOSALSTATUSCHANGEDATE sy-vline 
WA_PBUFLVLMNGCF_STR-PROPOSALMODE sy-vline 
WA_PBUFLVLMNGCF_STR-PROPOSALMODEDESCRIPTION sy-vline 
WA_PBUFLVLMNGCF_STR-ISMINORDERQTYCONSIDERED sy-vline 
WA_PBUFLVLMNGCF_STR-AVERAGEDAILYUSAGE sy-vline 
WA_PBUFLVLMNGCF_STR-AVERAGEDAILYUSAGEMODE sy-vline 
WA_PBUFLVLMNGCF_STR-AVERAGEDAILYUSAGEMODEDESC sy-vline 
WA_PBUFLVLMNGCF_STR-VARIABILITYFACTOR sy-vline 
WA_PBUFLVLMNGCF_STR-DECOUPLEDLEADTIME sy-vline 
WA_PBUFLVLMNGCF_STR-PURCHASINGGROUP sy-vline 
WA_PBUFLVLMNGCF_STR-MRPGROUP sy-vline 
WA_PBUFLVLMNGCF_STR-HORIZONDAYSINPAST sy-vline 
WA_PBUFLVLMNGCF_STR-HORIZONDAYSINFUTURE sy-vline 
WA_PBUFLVLMNGCF_STR-CONSUMPTIONCODE sy-vline 
WA_PBUFLVLMNGCF_STR-REPLENISHMENTLEADTIMECODE sy-vline 
WA_PBUFLVLMNGCF_STR-REPLENISHMENTLEADTIMEVALUE sy-vline 
WA_PBUFLVLMNGCF_STR-BOMUSAGECODE sy-vline 
WA_PBUFLVLMNGCF_STR-VARIABILITYCODE sy-vline 
WA_PBUFLVLMNGCF_STR-VARIABILITYQUANTITY sy-vline 
WA_PBUFLVLMNGCF_STR-PROCUREMENTTYPE sy-vline 
WA_PBUFLVLMNGCF_STR-BOMEXPLOSIONDATE sy-vline 
WA_PBUFLVLMNGCF_STR-MAXSTOCKDEVIATIONRATE sy-vline 
WA_PBUFLVLMNGCF_STR-MAXSTOCKDIFFERENCE sy-vline 
WA_PBUFLVLMNGCF_STR-MATLPROPOSEDMAXSTOCK sy-vline 
WA_PBUFLVLMNGCF_STR-MATERIALMAXSTOCKLEVELQUANTITY sy-vline 
WA_PBUFLVLMNGCF_STR-MATLPRPSLADJMTFCTRISAPPLIED sy-vline 
WA_PBUFLVLMNGCF_STR-MINORDERQUANTITYHASCHANGED sy-vline 
WA_PBUFLVLMNGCF_STR-PRODUCTPROFILECHANGECATEGORY sy-vline 
WA_PBUFLVLMNGCF_STR-PRODUCTPROFILEHASCHANGED sy-vline 
WA_PBUFLVLMNGCF_STR-ADJUSTMENTTYPE sy-vline 
WA_PBUFLVLMNGCF_STR-ISPROPOSALADOPTED sy-vline 
WA_PBUFLVLMNGCF_STR-ISINPROCESS sy-vline 
WA_PBUFLVLMNGCF_STR-NORMALIZEDCURRENTREDZONE sy-vline 
WA_PBUFLVLMNGCF_STR-NORMALIZEDCURRENTYELLOWZONE sy-vline 
WA_PBUFLVLMNGCF_STR-NORMALIZEDCURRENTGREENZONE sy-vline 
WA_PBUFLVLMNGCF_STR-NORMALIZEDPROPOSEDREDZONE sy-vline 
WA_PBUFLVLMNGCF_STR-NORMALIZEDPROPOSEDYELLOWZONE sy-vline 
WA_PBUFLVLMNGCF_STR-NORMALIZEDPROPOSEDGREENZONE sy-vline 
WA_PBUFLVLMNGCF_STR-DIFFERENCEINDAYS sy-vline 
WA_PBUFLVLMNGCF_STR-LEADTIMEDIFFERENCE sy-vline 
WA_PBUFLVLMNGCF_STR-VARIABILITYFACTORDIFFERENCE sy-vline 
WA_PBUFLVLMNGCF_STR-VARIABILITYFACTORDEVIATIONRATE sy-vline 
WA_PBUFLVLMNGCF_STR-LEADTIMEDEVIATIONRATE sy-vline 
WA_PBUFLVLMNGCF_STR-PROPOSALRUNISSUSPENDED sy-vline 
WA_PBUFLVLMNGCF_STR-PROPOSALRUNISNOTSUSPENDED sy-vline 
WA_PBUFLVLMNGCF_STR-AVGDAILYUSAGEDEVIATIONRATE sy-vline      INTO ld_text SEPARATED BY SPACE.

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