ABAP Select data from SAP table CWCCAPORDER 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 CWCCAPORDER 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 CWCCAPORDER. 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 CWCCAPORDER 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_CWCCAPORDER TYPE STANDARD TABLE OF CWCCAPORDER,
      WA_CWCCAPORDER TYPE CWCCAPORDER,
      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: <CWCCAPORDER> TYPE CWCCAPORDER.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CWCCAPORDER
*  INTO TABLE @DATA(IT_CWCCAPORDER2).
*--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_CWCCAPORDER INDEX 1 INTO DATA(WA_CWCCAPORDER2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CWCCAPORDER>-MANDT = 1.
<CWCCAPORDER>-WORKCENTERINTERNALID = 1.
<CWCCAPORDER>-WORKCENTERTYPECODE = 1.
<CWCCAPORDER>-CAPACITYCATEGORYALLOCATION = 1.
<CWCCAPORDER>-CAPACITYINTERNALID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CWCCAPORDER-MATERIAL, sy-vline,
  WA_CWCCAPORDER-ORDERID, sy-vline,
  WA_CWCCAPORDER-OPERATION, sy-vline,
  WA_CWCCAPORDER-CAPACITYEVALUATIONTIMEPERIOD, sy-vline,
  WA_CWCCAPORDER-SHIFTNAME, sy-vline,
  WA_CWCCAPORDER-PLANT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CWCCAPORDER 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_CWCCAPORDER 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_CWCCAPORDER INTO WA_CWCCAPORDER.


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

*Conversion exit NUMCV, internal->external for field OPERATION
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_CWCCAPORDER-OPERATION
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CWCCAPORDER-OPERATION.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit CUNIT, internal->external for field WORKCENTERCAPACITYUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CWCCAPORDER-WORKCENTERCAPACITYUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CWCCAPORDER-WORKCENTERCAPACITYUNIT.
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_CWCCAPORDER_STR, 
MANDT TYPE STRING,
WORKCENTERINTERNALID TYPE STRING,
WORKCENTERTYPECODE TYPE STRING,
CAPACITYCATEGORYALLOCATION TYPE STRING,
CAPACITYINTERNALID TYPE STRING,
MATERIAL TYPE STRING,
ORDERID TYPE STRING,
OPERATION TYPE STRING,
CAPACITYEVALUATIONTIMEPERIOD TYPE STRING,
SHIFTNAME TYPE STRING,
PLANT TYPE STRING,
MRPCONTROLLER TYPE STRING,
WORKCENTER TYPE STRING,
CAPEVALBUCKETTYPE TYPE STRING,
CAPACITYEVALUATIONTIMEPERDTEXT TYPE STRING,
FACTORYCALENDAR TYPE STRING,
WORKCENTERDESC TYPE STRING,
WORKCENTERRESPONSIBLE TYPE STRING,
WORKCENTERCATEGORYCODE TYPE STRING,
CAPACITYREQUIREMENTORIGIN TYPE STRING,
CAPACITYREQUIREMENTUNIT TYPE STRING,
ORDERTYPE TYPE STRING,
ORDERTYPENAME TYPE STRING,
BASEUNIT TYPE STRING,
ORDERPLANNEDTOTALQTY TYPE STRING,
ORDERCATEGORY TYPE STRING,
ORDERCATEGORYNAME TYPE STRING,
PRODUCTIONVERSION TYPE STRING,
OPERATIONPLANNINGSTATUSTEXT TYPE STRING,
OPERATIONPLANNINGSTATUSCODE TYPE STRING,
OPERATIONLATESTSTARTDATE TYPE STRING,
OPERATIONLATESTSTARTTIME TYPE STRING,
OPERATIONLATESTENDDATE TYPE STRING,
OPERATIONLATESTENDTIME TYPE STRING,
ORDERSTATUSTEXT TYPE STRING,
ORDERSTATUSCODE TYPE STRING,
ORDERFIRMINGSTATUSCODE TYPE STRING,
ORDERFIRMINGSTATUSTEXT TYPE STRING,
OPLTSTSCHEDLDPROCGSTRTDTE TYPE STRING,
OPLTSTSCHEDLDPROCGSTRTTME TYPE STRING,
OPLTSTSCHEDLDTRDWNSTRTDTE TYPE STRING,
OPLTSTSCHEDLDTRDWNSTRTTME TYPE STRING,
REMAININGCAPREQOPSEGSETUPDURN TYPE STRING,
REMAININGCAPREQOPSEGPROCGDURN TYPE STRING,
REMAININGCAPREQOPSEGTRDWNDURN TYPE STRING,
ORDERINTERNALID TYPE STRING,
CAPACITYSTARTTIME TYPE STRING,
CAPACITYENDTIME TYPE STRING,
WORKCENTERAVAILABLECAPACITY TYPE STRING,
WORKCENTERCAPRQMTINCAPUNIT TYPE STRING,
WORKCENTERCAPACITYUNIT TYPE STRING,
WORKCENTERCAPUNITTEXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CWCCAPORDER_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_CWCCAPORDER_STR-MANDT sy-vline 
WA_CWCCAPORDER_STR-WORKCENTERINTERNALID sy-vline 
WA_CWCCAPORDER_STR-WORKCENTERTYPECODE sy-vline 
WA_CWCCAPORDER_STR-CAPACITYCATEGORYALLOCATION sy-vline 
WA_CWCCAPORDER_STR-CAPACITYINTERNALID sy-vline 
WA_CWCCAPORDER_STR-MATERIAL sy-vline 
WA_CWCCAPORDER_STR-ORDERID sy-vline 
WA_CWCCAPORDER_STR-OPERATION sy-vline 
WA_CWCCAPORDER_STR-CAPACITYEVALUATIONTIMEPERIOD sy-vline 
WA_CWCCAPORDER_STR-SHIFTNAME sy-vline 
WA_CWCCAPORDER_STR-PLANT sy-vline 
WA_CWCCAPORDER_STR-MRPCONTROLLER sy-vline 
WA_CWCCAPORDER_STR-WORKCENTER sy-vline 
WA_CWCCAPORDER_STR-CAPEVALBUCKETTYPE sy-vline 
WA_CWCCAPORDER_STR-CAPACITYEVALUATIONTIMEPERDTEXT sy-vline 
WA_CWCCAPORDER_STR-FACTORYCALENDAR sy-vline 
WA_CWCCAPORDER_STR-WORKCENTERDESC sy-vline 
WA_CWCCAPORDER_STR-WORKCENTERRESPONSIBLE sy-vline 
WA_CWCCAPORDER_STR-WORKCENTERCATEGORYCODE sy-vline 
WA_CWCCAPORDER_STR-CAPACITYREQUIREMENTORIGIN sy-vline 
WA_CWCCAPORDER_STR-CAPACITYREQUIREMENTUNIT sy-vline 
WA_CWCCAPORDER_STR-ORDERTYPE sy-vline 
WA_CWCCAPORDER_STR-ORDERTYPENAME sy-vline 
WA_CWCCAPORDER_STR-BASEUNIT sy-vline 
WA_CWCCAPORDER_STR-ORDERPLANNEDTOTALQTY sy-vline 
WA_CWCCAPORDER_STR-ORDERCATEGORY sy-vline 
WA_CWCCAPORDER_STR-ORDERCATEGORYNAME sy-vline 
WA_CWCCAPORDER_STR-PRODUCTIONVERSION sy-vline 
WA_CWCCAPORDER_STR-OPERATIONPLANNINGSTATUSTEXT sy-vline 
WA_CWCCAPORDER_STR-OPERATIONPLANNINGSTATUSCODE sy-vline 
WA_CWCCAPORDER_STR-OPERATIONLATESTSTARTDATE sy-vline 
WA_CWCCAPORDER_STR-OPERATIONLATESTSTARTTIME sy-vline 
WA_CWCCAPORDER_STR-OPERATIONLATESTENDDATE sy-vline 
WA_CWCCAPORDER_STR-OPERATIONLATESTENDTIME sy-vline 
WA_CWCCAPORDER_STR-ORDERSTATUSTEXT sy-vline 
WA_CWCCAPORDER_STR-ORDERSTATUSCODE sy-vline 
WA_CWCCAPORDER_STR-ORDERFIRMINGSTATUSCODE sy-vline 
WA_CWCCAPORDER_STR-ORDERFIRMINGSTATUSTEXT sy-vline 
WA_CWCCAPORDER_STR-OPLTSTSCHEDLDPROCGSTRTDTE sy-vline 
WA_CWCCAPORDER_STR-OPLTSTSCHEDLDPROCGSTRTTME sy-vline 
WA_CWCCAPORDER_STR-OPLTSTSCHEDLDTRDWNSTRTDTE sy-vline 
WA_CWCCAPORDER_STR-OPLTSTSCHEDLDTRDWNSTRTTME sy-vline 
WA_CWCCAPORDER_STR-REMAININGCAPREQOPSEGSETUPDURN sy-vline 
WA_CWCCAPORDER_STR-REMAININGCAPREQOPSEGPROCGDURN sy-vline 
WA_CWCCAPORDER_STR-REMAININGCAPREQOPSEGTRDWNDURN sy-vline 
WA_CWCCAPORDER_STR-ORDERINTERNALID sy-vline 
WA_CWCCAPORDER_STR-CAPACITYSTARTTIME sy-vline 
WA_CWCCAPORDER_STR-CAPACITYENDTIME sy-vline 
WA_CWCCAPORDER_STR-WORKCENTERAVAILABLECAPACITY sy-vline 
WA_CWCCAPORDER_STR-WORKCENTERCAPRQMTINCAPUNIT sy-vline 
WA_CWCCAPORDER_STR-WORKCENTERCAPACITYUNIT sy-vline 
WA_CWCCAPORDER_STR-WORKCENTERCAPUNITTEXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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