ABAP Select data from SAP table CPMRPWRKCINSP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CPMRPWRKCINSP
*  INTO TABLE @DATA(IT_CPMRPWRKCINSP2).
*--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_CPMRPWRKCINSP INDEX 1 INTO DATA(WA_CPMRPWRKCINSP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CPMRPWRKCINSP>-MANDT = 1.
<CPMRPWRKCINSP>-PMRPSIMULATION = 1.
<CPMRPWRKCINSP>-PMRPNODEID = 1.
<CPMRPWRKCINSP>-PMRPRSCEGRPHIERNODETYPE = 1.
<CPMRPWRKCINSP>-CAPACITYCATEGORY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CPMRPWRKCINSP-BUCKETINTERNALID, sy-vline,
  WA_CPMRPWRKCINSP-PMRPPARENTNODEID, sy-vline,
  WA_CPMRPWRKCINSP-PMRPRSCEGRPHIERPARENTNODETYPE, sy-vline,
  WA_CPMRPWRKCINSP-PMRPRESOURCEINTERNALID, sy-vline,
  WA_CPMRPWRKCINSP-PMRPAVAILABLECAPACITY, sy-vline,
  WA_CPMRPWRKCINSP-PMRPCAPACITYDEMANDQUANTITY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CPMRPWRKCINSP 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_CPMRPWRKCINSP 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_CPMRPWRKCINSP INTO WA_CPMRPWRKCINSP.


*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 CUNIT, internal->external for field CAPACITYQUANTITYUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CPMRPWRKCINSP-CAPACITYQUANTITYUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CPMRPWRKCINSP-CAPACITYQUANTITYUNIT.
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_CPMRPWRKCINSP_STR, 
MANDT TYPE STRING,
PMRPSIMULATION TYPE STRING,
PMRPNODEID TYPE STRING,
PMRPRSCEGRPHIERNODETYPE TYPE STRING,
CAPACITYCATEGORY TYPE STRING,
BUCKETINTERNALID TYPE STRING,
PMRPPARENTNODEID TYPE STRING,
PMRPRSCEGRPHIERPARENTNODETYPE TYPE STRING,
PMRPRESOURCEINTERNALID TYPE STRING,
PMRPAVAILABLECAPACITY TYPE STRING,
PMRPCAPACITYDEMANDQUANTITY TYPE STRING,
PMRPCAPACITYDELTAQTY TYPE STRING,
CAPACITYQUANTITYUNIT TYPE STRING,
PMRPWORKCENTERTEXT TYPE STRING,
PMRPSIMLNRSCECAPBUCKETOVERLOAD TYPE STRING,
CAPACITYCRITICALITY TYPE STRING,
PMRPRESOURCEDISREGARDISSSTATUS TYPE STRING,
PMRPREFERENCEPLAN TYPE STRING,
PLANT TYPE STRING,
PMRPBUCKETCATEGORY TYPE STRING,
WORKCENTER TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CPMRPWRKCINSP_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_CPMRPWRKCINSP_STR-MANDT sy-vline 
WA_CPMRPWRKCINSP_STR-PMRPSIMULATION sy-vline 
WA_CPMRPWRKCINSP_STR-PMRPNODEID sy-vline 
WA_CPMRPWRKCINSP_STR-PMRPRSCEGRPHIERNODETYPE sy-vline 
WA_CPMRPWRKCINSP_STR-CAPACITYCATEGORY sy-vline 
WA_CPMRPWRKCINSP_STR-BUCKETINTERNALID sy-vline 
WA_CPMRPWRKCINSP_STR-PMRPPARENTNODEID sy-vline 
WA_CPMRPWRKCINSP_STR-PMRPRSCEGRPHIERPARENTNODETYPE sy-vline 
WA_CPMRPWRKCINSP_STR-PMRPRESOURCEINTERNALID sy-vline 
WA_CPMRPWRKCINSP_STR-PMRPAVAILABLECAPACITY sy-vline 
WA_CPMRPWRKCINSP_STR-PMRPCAPACITYDEMANDQUANTITY sy-vline 
WA_CPMRPWRKCINSP_STR-PMRPCAPACITYDELTAQTY sy-vline 
WA_CPMRPWRKCINSP_STR-CAPACITYQUANTITYUNIT sy-vline 
WA_CPMRPWRKCINSP_STR-PMRPWORKCENTERTEXT sy-vline 
WA_CPMRPWRKCINSP_STR-PMRPSIMLNRSCECAPBUCKETOVERLOAD sy-vline 
WA_CPMRPWRKCINSP_STR-CAPACITYCRITICALITY sy-vline 
WA_CPMRPWRKCINSP_STR-PMRPRESOURCEDISREGARDISSSTATUS sy-vline 
WA_CPMRPWRKCINSP_STR-PMRPREFERENCEPLAN sy-vline 
WA_CPMRPWRKCINSP_STR-PLANT sy-vline 
WA_CPMRPWRKCINSP_STR-PMRPBUCKETCATEGORY sy-vline 
WA_CPMRPWRKCINSP_STR-WORKCENTER sy-vline      INTO ld_text SEPARATED BY SPACE.

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