ABAP Select data from SAP table CMMTIMEVARIANCE into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CMMTIMEVARIANCE
*  INTO TABLE @DATA(IT_CMMTIMEVARIANCE2).
*--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_CMMTIMEVARIANCE INDEX 1 INTO DATA(WA_CMMTIMEVARIANCE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CMMTIMEVARIANCE>-MANDT = 1.
<CMMTIMEVARIANCE>-PURCHASEORDER = 1.
<CMMTIMEVARIANCE>-PURCHASEORDERITEM = 1.
<CMMTIMEVARIANCE>-SCHEDULELINE = 1.
<CMMTIMEVARIANCE>-DELIVERYDATE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CMMTIMEVARIANCE-SCHEDLINESTSCDELIVERYDATE, sy-vline,
  WA_CMMTIMEVARIANCE-PURGDOCMIGRTNISCMPLTDFORANLYTS, sy-vline,
  WA_CMMTIMEVARIANCE-PURORDITMFINALGRPOSTINGDATE, sy-vline,
  WA_CMMTIMEVARIANCE-PURORDITMFIRSTGRPOSTINGDATE, sy-vline,
  WA_CMMTIMEVARIANCE-CALENDARYEAR, sy-vline,
  WA_CMMTIMEVARIANCE-CALENDARQUARTER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CMMTIMEVARIANCE 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_CMMTIMEVARIANCE 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_CMMTIMEVARIANCE INTO WA_CMMTIMEVARIANCE.


*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 ALPHA, internal->external for field PURCHASEORDER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CMMTIMEVARIANCE-PURCHASEORDER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CMMTIMEVARIANCE-PURCHASEORDER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SUPPLIER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CMMTIMEVARIANCE-SUPPLIER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CMMTIMEVARIANCE-SUPPLIER.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field PURCHASINGCATEGORY
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CMMTIMEVARIANCE-PURCHASINGCATEGORY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CMMTIMEVARIANCE-PURCHASINGCATEGORY.
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_CMMTIMEVARIANCE_STR, 
MANDT TYPE STRING,
PURCHASEORDER TYPE STRING,
PURCHASEORDERITEM TYPE STRING,
SCHEDULELINE TYPE STRING,
DELIVERYDATE TYPE STRING,
SCHEDLINESTSCDELIVERYDATE TYPE STRING,
PURGDOCMIGRTNISCMPLTDFORANLYTS TYPE STRING,
PURORDITMFINALGRPOSTINGDATE TYPE STRING,
PURORDITMFIRSTGRPOSTINGDATE TYPE STRING,
CALENDARYEAR TYPE STRING,
CALENDARQUARTER TYPE STRING,
CALENDARMONTH TYPE STRING,
CALENDARWEEK TYPE STRING,
PURCHASINGORGANIZATION TYPE STRING,
PURCHASINGORGANIZATIONNAME TYPE STRING,
PURCHASINGGROUP TYPE STRING,
PURCHASINGGROUPNAME TYPE STRING,
COMPANYCODE TYPE STRING,
SUPPLIER TYPE STRING,
SUPPLIERNAME TYPE STRING,
SUPPLIERCOUNTRY TYPE STRING,
COUNTRYNAME TYPE STRING,
MATERIAL TYPE STRING,
MATERIALNAME TYPE STRING,
MATERIALGROUP TYPE STRING,
MATERIALGROUPNAME TYPE STRING,
PLANT TYPE STRING,
PLANTNAME TYPE STRING,
PURCHASINGCATEGORY TYPE STRING,
PURGCATNAME TYPE STRING,
PURCHASINGDOCUMENTCATEGORY TYPE STRING,
PURCHASINGDOCUMENTCATEGORYNAME TYPE STRING,
TIMEVARIANCEINDAYS TYPE STRING,
TIMEVARIANCEINPCT TYPE STRING,
TIMEVARIANCEINPCTBYDELIVDATE TYPE STRING,
TIMEVARIANCESCORE TYPE STRING,
TIMEVARIANCESCOREBYDELIVDATE TYPE STRING,
PURCHASEORDERITEMUNIQUEID TYPE STRING,
NUMBEROFPURCHASEORDERS TYPE STRING,
NUMBEROFPURCHASEORDERITEMS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CMMTIMEVARIANCE_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_CMMTIMEVARIANCE_STR-MANDT sy-vline 
WA_CMMTIMEVARIANCE_STR-PURCHASEORDER sy-vline 
WA_CMMTIMEVARIANCE_STR-PURCHASEORDERITEM sy-vline 
WA_CMMTIMEVARIANCE_STR-SCHEDULELINE sy-vline 
WA_CMMTIMEVARIANCE_STR-DELIVERYDATE sy-vline 
WA_CMMTIMEVARIANCE_STR-SCHEDLINESTSCDELIVERYDATE sy-vline 
WA_CMMTIMEVARIANCE_STR-PURGDOCMIGRTNISCMPLTDFORANLYTS sy-vline 
WA_CMMTIMEVARIANCE_STR-PURORDITMFINALGRPOSTINGDATE sy-vline 
WA_CMMTIMEVARIANCE_STR-PURORDITMFIRSTGRPOSTINGDATE sy-vline 
WA_CMMTIMEVARIANCE_STR-CALENDARYEAR sy-vline 
WA_CMMTIMEVARIANCE_STR-CALENDARQUARTER sy-vline 
WA_CMMTIMEVARIANCE_STR-CALENDARMONTH sy-vline 
WA_CMMTIMEVARIANCE_STR-CALENDARWEEK sy-vline 
WA_CMMTIMEVARIANCE_STR-PURCHASINGORGANIZATION sy-vline 
WA_CMMTIMEVARIANCE_STR-PURCHASINGORGANIZATIONNAME sy-vline 
WA_CMMTIMEVARIANCE_STR-PURCHASINGGROUP sy-vline 
WA_CMMTIMEVARIANCE_STR-PURCHASINGGROUPNAME sy-vline 
WA_CMMTIMEVARIANCE_STR-COMPANYCODE sy-vline 
WA_CMMTIMEVARIANCE_STR-SUPPLIER sy-vline 
WA_CMMTIMEVARIANCE_STR-SUPPLIERNAME sy-vline 
WA_CMMTIMEVARIANCE_STR-SUPPLIERCOUNTRY sy-vline 
WA_CMMTIMEVARIANCE_STR-COUNTRYNAME sy-vline 
WA_CMMTIMEVARIANCE_STR-MATERIAL sy-vline 
WA_CMMTIMEVARIANCE_STR-MATERIALNAME sy-vline 
WA_CMMTIMEVARIANCE_STR-MATERIALGROUP sy-vline 
WA_CMMTIMEVARIANCE_STR-MATERIALGROUPNAME sy-vline 
WA_CMMTIMEVARIANCE_STR-PLANT sy-vline 
WA_CMMTIMEVARIANCE_STR-PLANTNAME sy-vline 
WA_CMMTIMEVARIANCE_STR-PURCHASINGCATEGORY sy-vline 
WA_CMMTIMEVARIANCE_STR-PURGCATNAME sy-vline 
WA_CMMTIMEVARIANCE_STR-PURCHASINGDOCUMENTCATEGORY sy-vline 
WA_CMMTIMEVARIANCE_STR-PURCHASINGDOCUMENTCATEGORYNAME sy-vline 
WA_CMMTIMEVARIANCE_STR-TIMEVARIANCEINDAYS sy-vline 
WA_CMMTIMEVARIANCE_STR-TIMEVARIANCEINPCT sy-vline 
WA_CMMTIMEVARIANCE_STR-TIMEVARIANCEINPCTBYDELIVDATE sy-vline 
WA_CMMTIMEVARIANCE_STR-TIMEVARIANCESCORE sy-vline 
WA_CMMTIMEVARIANCE_STR-TIMEVARIANCESCOREBYDELIVDATE sy-vline 
WA_CMMTIMEVARIANCE_STR-PURCHASEORDERITEMUNIQUEID sy-vline 
WA_CMMTIMEVARIANCE_STR-NUMBEROFPURCHASEORDERS sy-vline 
WA_CMMTIMEVARIANCE_STR-NUMBEROFPURCHASEORDERITEMS sy-vline      INTO ld_text SEPARATED BY SPACE.

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