ABAP Select data from SAP table CPMRPSUPLY into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CPMRPSUPLY
*  INTO TABLE @DATA(IT_CPMRPSUPLY2).
*--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_CPMRPSUPLY INDEX 1 INTO DATA(WA_CPMRPSUPLY2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CPMRPSUPLY>-MANDT = 1.
<CPMRPSUPLY>-PMRPSIMULATION = 1.
<CPMRPSUPLY>-PMRPSUPPLYGROUP = 1.
<CPMRPSUPLY>-PMRPSUPPLYGROUPCATEGORY = 1.
<CPMRPSUPLY>-PRODUCT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CPMRPSUPLY-PLANT, sy-vline,
  WA_CPMRPSUPLY-MRPAREA, sy-vline,
  WA_CPMRPSUPLY-BUCKETINTERNALID, sy-vline,
  WA_CPMRPSUPLY-PMRPBUCKETCATEGORY, sy-vline,
  WA_CPMRPSUPLY-PMRPNUMBEROFBUCKETS, sy-vline,
  WA_CPMRPSUPLY-MATERIALNAME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CPMRPSUPLY 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_CPMRPSUPLY 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_CPMRPSUPLY INTO WA_CPMRPSUPLY.


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

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

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

*Conversion exit ALPHA, internal->external for field PROCMTHUBSUPPLIER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CPMRPSUPLY-PROCMTHUBSUPPLIER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CPMRPSUPLY-PROCMTHUBSUPPLIER.
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_CPMRPSUPLY_STR, 
MANDT TYPE STRING,
PMRPSIMULATION TYPE STRING,
PMRPSUPPLYGROUP TYPE STRING,
PMRPSUPPLYGROUPCATEGORY TYPE STRING,
PRODUCT TYPE STRING,
PLANT TYPE STRING,
MRPAREA TYPE STRING,
BUCKETINTERNALID TYPE STRING,
PMRPBUCKETCATEGORY TYPE STRING,
PMRPNUMBEROFBUCKETS TYPE STRING,
MATERIALNAME TYPE STRING,
PLANTNAME TYPE STRING,
MRPAREATEXT TYPE STRING,
MRPCONTROLLER TYPE STRING,
MRPCONTROLLERNAME TYPE STRING,
UNITOFMEASURE TYPE STRING,
DELIVERYTOLERANCEUNIT TYPE STRING,
PMRPRECEIPTQUANTITY TYPE STRING,
PMRPCONSTRAINTQTYINBASEUNIT TYPE STRING,
PMRPREFERENCEPLAN TYPE STRING,
PMRPPARENTSUPPLYGROUP TYPE STRING,
PMRPPARENTSUPPLYGROUPCATEGORY TYPE STRING,
PARENTPRODUCT TYPE STRING,
PARENTPLANT TYPE STRING,
PARENTMRPAREA TYPE STRING,
SUPPLIER TYPE STRING,
MRPPROCEDURE TYPE STRING,
PROCUREMENTTYPE TYPE STRING,
PROCUREMENTTYPEDESCRIPTION TYPE STRING,
HIERARCHYNODE TYPE STRING,
HIERARCHYPARENTNODE TYPE STRING,
HIERARCHYNODEORDINALNUMBER TYPE STRING,
HIERARCHYPARENTNODEORDINALNMBR TYPE STRING,
HIERARCHYLEVEL TYPE STRING,
HIERARCHYNODESUBTREESIZE TYPE STRING,
PRODUCTIONLINE TYPE STRING,
PROCMTHUBSUPPLIER TYPE STRING,
SUPPLYINGPLANT TYPE STRING,
RECEIVINGPLANT TYPE STRING,
LOWLEVELCODE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CPMRPSUPLY_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_CPMRPSUPLY_STR-MANDT sy-vline 
WA_CPMRPSUPLY_STR-PMRPSIMULATION sy-vline 
WA_CPMRPSUPLY_STR-PMRPSUPPLYGROUP sy-vline 
WA_CPMRPSUPLY_STR-PMRPSUPPLYGROUPCATEGORY sy-vline 
WA_CPMRPSUPLY_STR-PRODUCT sy-vline 
WA_CPMRPSUPLY_STR-PLANT sy-vline 
WA_CPMRPSUPLY_STR-MRPAREA sy-vline 
WA_CPMRPSUPLY_STR-BUCKETINTERNALID sy-vline 
WA_CPMRPSUPLY_STR-PMRPBUCKETCATEGORY sy-vline 
WA_CPMRPSUPLY_STR-PMRPNUMBEROFBUCKETS sy-vline 
WA_CPMRPSUPLY_STR-MATERIALNAME sy-vline 
WA_CPMRPSUPLY_STR-PLANTNAME sy-vline 
WA_CPMRPSUPLY_STR-MRPAREATEXT sy-vline 
WA_CPMRPSUPLY_STR-MRPCONTROLLER sy-vline 
WA_CPMRPSUPLY_STR-MRPCONTROLLERNAME sy-vline 
WA_CPMRPSUPLY_STR-UNITOFMEASURE sy-vline 
WA_CPMRPSUPLY_STR-DELIVERYTOLERANCEUNIT sy-vline 
WA_CPMRPSUPLY_STR-PMRPRECEIPTQUANTITY sy-vline 
WA_CPMRPSUPLY_STR-PMRPCONSTRAINTQTYINBASEUNIT sy-vline 
WA_CPMRPSUPLY_STR-PMRPREFERENCEPLAN sy-vline 
WA_CPMRPSUPLY_STR-PMRPPARENTSUPPLYGROUP sy-vline 
WA_CPMRPSUPLY_STR-PMRPPARENTSUPPLYGROUPCATEGORY sy-vline 
WA_CPMRPSUPLY_STR-PARENTPRODUCT sy-vline 
WA_CPMRPSUPLY_STR-PARENTPLANT sy-vline 
WA_CPMRPSUPLY_STR-PARENTMRPAREA sy-vline 
WA_CPMRPSUPLY_STR-SUPPLIER sy-vline 
WA_CPMRPSUPLY_STR-MRPPROCEDURE sy-vline 
WA_CPMRPSUPLY_STR-PROCUREMENTTYPE sy-vline 
WA_CPMRPSUPLY_STR-PROCUREMENTTYPEDESCRIPTION sy-vline 
WA_CPMRPSUPLY_STR-HIERARCHYNODE sy-vline 
WA_CPMRPSUPLY_STR-HIERARCHYPARENTNODE sy-vline 
WA_CPMRPSUPLY_STR-HIERARCHYNODEORDINALNUMBER sy-vline 
WA_CPMRPSUPLY_STR-HIERARCHYPARENTNODEORDINALNMBR sy-vline 
WA_CPMRPSUPLY_STR-HIERARCHYLEVEL sy-vline 
WA_CPMRPSUPLY_STR-HIERARCHYNODESUBTREESIZE sy-vline 
WA_CPMRPSUPLY_STR-PRODUCTIONLINE sy-vline 
WA_CPMRPSUPLY_STR-PROCMTHUBSUPPLIER sy-vline 
WA_CPMRPSUPLY_STR-SUPPLYINGPLANT sy-vline 
WA_CPMRPSUPLY_STR-RECEIVINGPLANT sy-vline 
WA_CPMRPSUPLY_STR-LOWLEVELCODE sy-vline      INTO ld_text SEPARATED BY SPACE.

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