ABAP Select data from SAP table IWCCAPPPLINEOP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IWCCAPPPLINEOP
*  INTO TABLE @DATA(IT_IWCCAPPPLINEOP2).
*--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_IWCCAPPPLINEOP INDEX 1 INTO DATA(WA_IWCCAPPPLINEOP2).


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

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

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IWCCAPPPLINEOP-ORDERID, sy-vline,
  WA_IWCCAPPPLINEOP-OPERATION, sy-vline,
  WA_IWCCAPPPLINEOP-CAPACITYREQUIREMENT, sy-vline,
  WA_IWCCAPPPLINEOP-MATERIAL, sy-vline,
  WA_IWCCAPPPLINEOP-CAPACITYREQUIREMENTITEM, sy-vline,
  WA_IWCCAPPPLINEOP-PLANT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IWCCAPPPLINEOP 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_IWCCAPPPLINEOP 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_IWCCAPPPLINEOP INTO WA_IWCCAPPPLINEOP.


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

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

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

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

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

*Conversion exit ALPHA, internal->external for field SEQUENCE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IWCCAPPPLINEOP-SEQUENCE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IWCCAPPPLINEOP-SEQUENCE.
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_IWCCAPPPLINEOP_STR, 
MANDT TYPE STRING,
WORKCENTERINTERNALID TYPE STRING,
WORKCENTERTYPECODE TYPE STRING,
CAPACITYCATEGORYALLOCATION TYPE STRING,
CAPACITYINTERNALID TYPE STRING,
ORDERID TYPE STRING,
OPERATION TYPE STRING,
CAPACITYREQUIREMENT TYPE STRING,
MATERIAL TYPE STRING,
CAPACITYREQUIREMENTITEM TYPE STRING,
PLANT TYPE STRING,
MRPCONTROLLER TYPE STRING,
WORKCENTER TYPE STRING,
WORKCENTERRESPONSIBLE TYPE STRING,
WORKCENTERCATEGORYCODE TYPE STRING,
CAPACITYREQUIREMENTORIGIN TYPE STRING,
CAPACITYREQUIREMENTUNIT TYPE STRING,
CAPACITYBASEQTYUNIT TYPE STRING,
ORDERINTERNALID TYPE STRING,
ORDERTYPE TYPE STRING,
ORDERCATEGORY TYPE STRING,
PRODUCTIONVERSION TYPE STRING,
ORDERPLANNEDTOTALQTY TYPE STRING,
BASEUNIT TYPE STRING,
OPERATIONPLANNINGSTATUSCODE TYPE STRING,
OPERATIONLATESTSTARTDATE TYPE STRING,
OPERATIONLATESTSTARTTIME TYPE STRING,
OPERATIONLATESTENDDATE TYPE STRING,
OPERATIONLATESTENDTIME TYPE STRING,
OPLTSTSCHEDLDPROCGSTRTDTE TYPE STRING,
OPLTSTSCHEDLDPROCGSTRTTME TYPE STRING,
OPLTSTSCHEDLDTRDWNSTRTDTE TYPE STRING,
OPLTSTSCHEDLDTRDWNSTRTTME TYPE STRING,
REMAININGCAPREQOPSEGSETUPDURN TYPE STRING,
REMAININGCAPREQOPSEGPROCGDURN TYPE STRING,
REMAININGCAPREQOPSEGTRDWNDURN TYPE STRING,
CAPACITYREQUIREMENTSAREDTMND TYPE STRING,
ORDERSTATUSCODE TYPE STRING,
ORDERFIRMINGSTATUSCODE TYPE STRING,
SCHEDULEDBASICSTARTDATE TYPE STRING,
SCHEDULEDBASICSTARTTIME TYPE STRING,
SCHEDULEDBASICENDDATE TYPE STRING,
SCHEDULEDBASICENDTIME TYPE STRING,
CURRENTDATE TYPE STRING,
LTSTSCHEDLDEXECSTRTDTETME TYPE STRING,
LTSTSCHEDLDEXECENDDTETME TYPE STRING,
SEQUENCE TYPE STRING,
PRODUCTCONFIGURATION TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IWCCAPPPLINEOP_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_IWCCAPPPLINEOP_STR-MANDT sy-vline 
WA_IWCCAPPPLINEOP_STR-WORKCENTERINTERNALID sy-vline 
WA_IWCCAPPPLINEOP_STR-WORKCENTERTYPECODE sy-vline 
WA_IWCCAPPPLINEOP_STR-CAPACITYCATEGORYALLOCATION sy-vline 
WA_IWCCAPPPLINEOP_STR-CAPACITYINTERNALID sy-vline 
WA_IWCCAPPPLINEOP_STR-ORDERID sy-vline 
WA_IWCCAPPPLINEOP_STR-OPERATION sy-vline 
WA_IWCCAPPPLINEOP_STR-CAPACITYREQUIREMENT sy-vline 
WA_IWCCAPPPLINEOP_STR-MATERIAL sy-vline 
WA_IWCCAPPPLINEOP_STR-CAPACITYREQUIREMENTITEM sy-vline 
WA_IWCCAPPPLINEOP_STR-PLANT sy-vline 
WA_IWCCAPPPLINEOP_STR-MRPCONTROLLER sy-vline 
WA_IWCCAPPPLINEOP_STR-WORKCENTER sy-vline 
WA_IWCCAPPPLINEOP_STR-WORKCENTERRESPONSIBLE sy-vline 
WA_IWCCAPPPLINEOP_STR-WORKCENTERCATEGORYCODE sy-vline 
WA_IWCCAPPPLINEOP_STR-CAPACITYREQUIREMENTORIGIN sy-vline 
WA_IWCCAPPPLINEOP_STR-CAPACITYREQUIREMENTUNIT sy-vline 
WA_IWCCAPPPLINEOP_STR-CAPACITYBASEQTYUNIT sy-vline 
WA_IWCCAPPPLINEOP_STR-ORDERINTERNALID sy-vline 
WA_IWCCAPPPLINEOP_STR-ORDERTYPE sy-vline 
WA_IWCCAPPPLINEOP_STR-ORDERCATEGORY sy-vline 
WA_IWCCAPPPLINEOP_STR-PRODUCTIONVERSION sy-vline 
WA_IWCCAPPPLINEOP_STR-ORDERPLANNEDTOTALQTY sy-vline 
WA_IWCCAPPPLINEOP_STR-BASEUNIT sy-vline 
WA_IWCCAPPPLINEOP_STR-OPERATIONPLANNINGSTATUSCODE sy-vline 
WA_IWCCAPPPLINEOP_STR-OPERATIONLATESTSTARTDATE sy-vline 
WA_IWCCAPPPLINEOP_STR-OPERATIONLATESTSTARTTIME sy-vline 
WA_IWCCAPPPLINEOP_STR-OPERATIONLATESTENDDATE sy-vline 
WA_IWCCAPPPLINEOP_STR-OPERATIONLATESTENDTIME sy-vline 
WA_IWCCAPPPLINEOP_STR-OPLTSTSCHEDLDPROCGSTRTDTE sy-vline 
WA_IWCCAPPPLINEOP_STR-OPLTSTSCHEDLDPROCGSTRTTME sy-vline 
WA_IWCCAPPPLINEOP_STR-OPLTSTSCHEDLDTRDWNSTRTDTE sy-vline 
WA_IWCCAPPPLINEOP_STR-OPLTSTSCHEDLDTRDWNSTRTTME sy-vline 
WA_IWCCAPPPLINEOP_STR-REMAININGCAPREQOPSEGSETUPDURN sy-vline 
WA_IWCCAPPPLINEOP_STR-REMAININGCAPREQOPSEGPROCGDURN sy-vline 
WA_IWCCAPPPLINEOP_STR-REMAININGCAPREQOPSEGTRDWNDURN sy-vline 
WA_IWCCAPPPLINEOP_STR-CAPACITYREQUIREMENTSAREDTMND sy-vline 
WA_IWCCAPPPLINEOP_STR-ORDERSTATUSCODE sy-vline 
WA_IWCCAPPPLINEOP_STR-ORDERFIRMINGSTATUSCODE sy-vline 
WA_IWCCAPPPLINEOP_STR-SCHEDULEDBASICSTARTDATE sy-vline 
WA_IWCCAPPPLINEOP_STR-SCHEDULEDBASICSTARTTIME sy-vline 
WA_IWCCAPPPLINEOP_STR-SCHEDULEDBASICENDDATE sy-vline 
WA_IWCCAPPPLINEOP_STR-SCHEDULEDBASICENDTIME sy-vline 
WA_IWCCAPPPLINEOP_STR-CURRENTDATE sy-vline 
WA_IWCCAPPPLINEOP_STR-LTSTSCHEDLDEXECSTRTDTETME sy-vline 
WA_IWCCAPPPLINEOP_STR-LTSTSCHEDLDEXECENDDTETME sy-vline 
WA_IWCCAPPPLINEOP_STR-SEQUENCE sy-vline 
WA_IWCCAPPPLINEOP_STR-PRODUCTCONFIGURATION sy-vline      INTO ld_text SEPARATED BY SPACE.

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