ABAP Select data from SAP table CCAPEVALWCOVW into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CCAPEVALWCOVW
*  INTO TABLE @DATA(IT_CCAPEVALWCOVW2).
*--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_CCAPEVALWCOVW INDEX 1 INTO DATA(WA_CCAPEVALWCOVW2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CCAPEVALWCOVW>-MANDT = 1.
<CCAPEVALWCOVW>-WORKCENTERINTERNALID = 1.
<CCAPEVALWCOVW>-CAPACITYINTERNALID = 1.
<CCAPEVALWCOVW>-WORKCENTERDESC = 1.
<CCAPEVALWCOVW>-CAPACITYCATEGORYNAME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CCAPEVALWCOVW-BASEUNIT, sy-vline,
  WA_CCAPEVALWCOVW-WORKCENTERMAXUTILZNINTIMEPERD, sy-vline,
  WA_CCAPEVALWCOVW-WORKCENTERCAPFIRSTOVERLOADDTE, sy-vline,
  WA_CCAPEVALWCOVW-WORKCENTERCAPACITYBACKLOGINHRS, sy-vline,
  WA_CCAPEVALWCOVW-WORKCENTERTOTCAPINTIMEPERIOD, sy-vline,
  WA_CCAPEVALWCOVW-CAPACITY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CCAPEVALWCOVW 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_CCAPEVALWCOVW 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_CCAPEVALWCOVW INTO WA_CCAPEVALWCOVW.


*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 BASEUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CCAPEVALWCOVW-BASEUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CCAPEVALWCOVW-BASEUNIT.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit CUNIT, internal->external for field WORKCENTERCAPUNITTEXT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CCAPEVALWCOVW-WORKCENTERCAPUNITTEXT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CCAPEVALWCOVW-WORKCENTERCAPUNITTEXT.
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_CCAPEVALWCOVW_STR, 
MANDT TYPE STRING,
WORKCENTERINTERNALID TYPE STRING,
CAPACITYINTERNALID TYPE STRING,
WORKCENTERDESC TYPE STRING,
CAPACITYCATEGORYNAME TYPE STRING,
BASEUNIT TYPE STRING,
WORKCENTERMAXUTILZNINTIMEPERD TYPE STRING,
WORKCENTERCAPFIRSTOVERLOADDTE TYPE STRING,
WORKCENTERCAPACITYBACKLOGINHRS TYPE STRING,
WORKCENTERTOTCAPINTIMEPERIOD TYPE STRING,
CAPACITY TYPE STRING,
WORKCENTERMINUTILZNINTMEPERIOD TYPE STRING,
WORKCENTERCAPFIRSTCRITLLOADDTE TYPE STRING,
WORKCENTERAVGUTILZNINTIMEPERD TYPE STRING,
WORKCENTERTOTAVAILCAPINTMEPERD TYPE STRING,
WORKCENTERTOTUTILZNINTMEPERD TYPE STRING,
CAPACITYEVALUATIONTIMEPERIOD TYPE STRING,
WORKCENTERCAPACITYUNIT TYPE STRING,
WORKCENTERCAPUNITTEXT TYPE STRING,
WORKCENTERAVAILABLECAPACITY TYPE STRING,
WORKCENTERCAPACITYREQUIREMENT TYPE STRING,
CAPACITYCATEGORYCODE TYPE STRING,
WORKCENTER TYPE STRING,
WORKCENTERRESPONSIBLE TYPE STRING,
CAPACITYRESPONSIBLEPLANNER TYPE STRING,
CAPACITYREQUIREMENTORIGIN TYPE STRING,
OPERATIONPLANNINGSTATUSCODE TYPE STRING,
ORDERSTATUSCODE TYPE STRING,
CRITICALITY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CCAPEVALWCOVW_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_CCAPEVALWCOVW_STR-MANDT sy-vline 
WA_CCAPEVALWCOVW_STR-WORKCENTERINTERNALID sy-vline 
WA_CCAPEVALWCOVW_STR-CAPACITYINTERNALID sy-vline 
WA_CCAPEVALWCOVW_STR-WORKCENTERDESC sy-vline 
WA_CCAPEVALWCOVW_STR-CAPACITYCATEGORYNAME sy-vline 
WA_CCAPEVALWCOVW_STR-BASEUNIT sy-vline 
WA_CCAPEVALWCOVW_STR-WORKCENTERMAXUTILZNINTIMEPERD sy-vline 
WA_CCAPEVALWCOVW_STR-WORKCENTERCAPFIRSTOVERLOADDTE sy-vline 
WA_CCAPEVALWCOVW_STR-WORKCENTERCAPACITYBACKLOGINHRS sy-vline 
WA_CCAPEVALWCOVW_STR-WORKCENTERTOTCAPINTIMEPERIOD sy-vline 
WA_CCAPEVALWCOVW_STR-CAPACITY sy-vline 
WA_CCAPEVALWCOVW_STR-WORKCENTERMINUTILZNINTMEPERIOD sy-vline 
WA_CCAPEVALWCOVW_STR-WORKCENTERCAPFIRSTCRITLLOADDTE sy-vline 
WA_CCAPEVALWCOVW_STR-WORKCENTERAVGUTILZNINTIMEPERD sy-vline 
WA_CCAPEVALWCOVW_STR-WORKCENTERTOTAVAILCAPINTMEPERD sy-vline 
WA_CCAPEVALWCOVW_STR-WORKCENTERTOTUTILZNINTMEPERD sy-vline 
WA_CCAPEVALWCOVW_STR-CAPACITYEVALUATIONTIMEPERIOD sy-vline 
WA_CCAPEVALWCOVW_STR-WORKCENTERCAPACITYUNIT sy-vline 
WA_CCAPEVALWCOVW_STR-WORKCENTERCAPUNITTEXT sy-vline 
WA_CCAPEVALWCOVW_STR-WORKCENTERAVAILABLECAPACITY sy-vline 
WA_CCAPEVALWCOVW_STR-WORKCENTERCAPACITYREQUIREMENT sy-vline 
WA_CCAPEVALWCOVW_STR-CAPACITYCATEGORYCODE sy-vline 
WA_CCAPEVALWCOVW_STR-WORKCENTER sy-vline 
WA_CCAPEVALWCOVW_STR-WORKCENTERRESPONSIBLE sy-vline 
WA_CCAPEVALWCOVW_STR-CAPACITYRESPONSIBLEPLANNER sy-vline 
WA_CCAPEVALWCOVW_STR-CAPACITYREQUIREMENTORIGIN sy-vline 
WA_CCAPEVALWCOVW_STR-OPERATIONPLANNINGSTATUSCODE sy-vline 
WA_CCAPEVALWCOVW_STR-ORDERSTATUSCODE sy-vline 
WA_CCAPEVALWCOVW_STR-CRITICALITY sy-vline      INTO ld_text SEPARATED BY SPACE.

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