ABAP Select data from SAP table PCAPEVALCALFIELD into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PCAPEVALCALFIELD
*  INTO TABLE @DATA(IT_PCAPEVALCALFIELD2).
*--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_PCAPEVALCALFIELD INDEX 1 INTO DATA(WA_PCAPEVALCALFIELD2).


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

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

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PCAPEVALCALFIELD-WORKCENTEREVALUATIONHORIZON, sy-vline,
  WA_PCAPEVALCALFIELD-BASEUNIT, sy-vline,
  WA_PCAPEVALCALFIELD-WORKCENTERMAXUTILZNINTIMEPERD, sy-vline,
  WA_PCAPEVALCALFIELD-WORKCENTERCAPFIRSTOVERLOADWK, sy-vline,
  WA_PCAPEVALCALFIELD-WORKCENTERCAPFIRSTOVERLOADDTE, sy-vline,
  WA_PCAPEVALCALFIELD-WORKCENTERCAPACITYBACKLOGINHRS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PCAPEVALCALFIELD 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_PCAPEVALCALFIELD 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_PCAPEVALCALFIELD INTO WA_PCAPEVALCALFIELD.


*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_PCAPEVALCALFIELD-BASEUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PCAPEVALCALFIELD-BASEUNIT.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit CUNIT, internal->external for field WORKCENTERCAPUNITTEXT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_PCAPEVALCALFIELD-WORKCENTERCAPUNITTEXT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PCAPEVALCALFIELD-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_PCAPEVALCALFIELD_STR, 
MANDT TYPE STRING,
WORKCENTERINTERNALID TYPE STRING,
WORKCENTERTYPECODE TYPE STRING,
CAPACITYCATEGORYALLOCATION TYPE STRING,
CAPACITYINTERNALID TYPE STRING,
WORKCENTEREVALUATIONHORIZON TYPE STRING,
BASEUNIT TYPE STRING,
WORKCENTERMAXUTILZNINTIMEPERD TYPE STRING,
WORKCENTERCAPFIRSTOVERLOADWK TYPE STRING,
WORKCENTERCAPFIRSTOVERLOADDTE TYPE STRING,
WORKCENTERCAPACITYBACKLOGINHRS TYPE STRING,
WORKCENTERTOTCAPINTIMEPERIOD TYPE STRING,
WORKCENTERMINUTILZNINTMEPERIOD TYPE STRING,
WORKCENTERCAPFIRSTCRITLLOADWK 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,
CAPACITYREQUIREMENTORIGIN TYPE STRING,
OPERATIONPLANNINGSTATUSCODE TYPE STRING,
ORDERSTATUSCODE TYPE STRING,
CRITICALITY TYPE STRING,
WORKCENTERAVGUTILZNCRITICALITY TYPE STRING,
PLANTNAME TYPE STRING,
WORKCENTERCUMLTVLOADINTMEPERD TYPE STRING,
WORKCENTERCUMLTVLOADINHOURS TYPE STRING,
WRKCTRISUNDRMAINTINTMEPERD TYPE STRING,
WORKCENTERFLTRCODEINTMEPERD TYPE STRING,
WRKCTRMAINTORDAVAILABILITYTXT TYPE STRING,
WORKCENTERGROUP TYPE STRING,
WORKCENTERGROUPTYPE TYPE STRING,
WORKCENTERGROUPDESCRIPTION TYPE STRING,
CURRENTPLANTDATE TYPE STRING,
CAPACITYEVALUATIONHORIZONDATE TYPE STRING,
HORIZONSTARTDATE TYPE STRING,
HORIZONENDDATE TYPE STRING,
CAPEVALSTARTDATE TYPE STRING,
CAPEVALBUCKETTYPE TYPE STRING,
CAPACITYEVALUATIONOVERDUEDATE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PCAPEVALCALFIELD_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_PCAPEVALCALFIELD_STR-MANDT sy-vline 
WA_PCAPEVALCALFIELD_STR-WORKCENTERINTERNALID sy-vline 
WA_PCAPEVALCALFIELD_STR-WORKCENTERTYPECODE sy-vline 
WA_PCAPEVALCALFIELD_STR-CAPACITYCATEGORYALLOCATION sy-vline 
WA_PCAPEVALCALFIELD_STR-CAPACITYINTERNALID sy-vline 
WA_PCAPEVALCALFIELD_STR-WORKCENTEREVALUATIONHORIZON sy-vline 
WA_PCAPEVALCALFIELD_STR-BASEUNIT sy-vline 
WA_PCAPEVALCALFIELD_STR-WORKCENTERMAXUTILZNINTIMEPERD sy-vline 
WA_PCAPEVALCALFIELD_STR-WORKCENTERCAPFIRSTOVERLOADWK sy-vline 
WA_PCAPEVALCALFIELD_STR-WORKCENTERCAPFIRSTOVERLOADDTE sy-vline 
WA_PCAPEVALCALFIELD_STR-WORKCENTERCAPACITYBACKLOGINHRS sy-vline 
WA_PCAPEVALCALFIELD_STR-WORKCENTERTOTCAPINTIMEPERIOD sy-vline 
WA_PCAPEVALCALFIELD_STR-WORKCENTERMINUTILZNINTMEPERIOD sy-vline 
WA_PCAPEVALCALFIELD_STR-WORKCENTERCAPFIRSTCRITLLOADWK sy-vline 
WA_PCAPEVALCALFIELD_STR-WORKCENTERCAPFIRSTCRITLLOADDTE sy-vline 
WA_PCAPEVALCALFIELD_STR-WORKCENTERAVGUTILZNINTIMEPERD sy-vline 
WA_PCAPEVALCALFIELD_STR-WORKCENTERTOTAVAILCAPINTMEPERD sy-vline 
WA_PCAPEVALCALFIELD_STR-WORKCENTERTOTUTILZNINTMEPERD sy-vline 
WA_PCAPEVALCALFIELD_STR-CAPACITYEVALUATIONTIMEPERIOD sy-vline 
WA_PCAPEVALCALFIELD_STR-WORKCENTERCAPACITYUNIT sy-vline 
WA_PCAPEVALCALFIELD_STR-WORKCENTERCAPUNITTEXT sy-vline 
WA_PCAPEVALCALFIELD_STR-WORKCENTERAVAILABLECAPACITY sy-vline 
WA_PCAPEVALCALFIELD_STR-WORKCENTERCAPACITYREQUIREMENT sy-vline 
WA_PCAPEVALCALFIELD_STR-CAPACITYCATEGORYCODE sy-vline 
WA_PCAPEVALCALFIELD_STR-CAPACITYREQUIREMENTORIGIN sy-vline 
WA_PCAPEVALCALFIELD_STR-OPERATIONPLANNINGSTATUSCODE sy-vline 
WA_PCAPEVALCALFIELD_STR-ORDERSTATUSCODE sy-vline 
WA_PCAPEVALCALFIELD_STR-CRITICALITY sy-vline 
WA_PCAPEVALCALFIELD_STR-WORKCENTERAVGUTILZNCRITICALITY sy-vline 
WA_PCAPEVALCALFIELD_STR-PLANTNAME sy-vline 
WA_PCAPEVALCALFIELD_STR-WORKCENTERCUMLTVLOADINTMEPERD sy-vline 
WA_PCAPEVALCALFIELD_STR-WORKCENTERCUMLTVLOADINHOURS sy-vline 
WA_PCAPEVALCALFIELD_STR-WRKCTRISUNDRMAINTINTMEPERD sy-vline 
WA_PCAPEVALCALFIELD_STR-WORKCENTERFLTRCODEINTMEPERD sy-vline 
WA_PCAPEVALCALFIELD_STR-WRKCTRMAINTORDAVAILABILITYTXT sy-vline 
WA_PCAPEVALCALFIELD_STR-WORKCENTERGROUP sy-vline 
WA_PCAPEVALCALFIELD_STR-WORKCENTERGROUPTYPE sy-vline 
WA_PCAPEVALCALFIELD_STR-WORKCENTERGROUPDESCRIPTION sy-vline 
WA_PCAPEVALCALFIELD_STR-CURRENTPLANTDATE sy-vline 
WA_PCAPEVALCALFIELD_STR-CAPACITYEVALUATIONHORIZONDATE sy-vline 
WA_PCAPEVALCALFIELD_STR-HORIZONSTARTDATE sy-vline 
WA_PCAPEVALCALFIELD_STR-HORIZONENDDATE sy-vline 
WA_PCAPEVALCALFIELD_STR-CAPEVALSTARTDATE sy-vline 
WA_PCAPEVALCALFIELD_STR-CAPEVALBUCKETTYPE sy-vline 
WA_PCAPEVALCALFIELD_STR-CAPACITYEVALUATIONOVERDUEDATE sy-vline      INTO ld_text SEPARATED BY SPACE.

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