Track changes by built in functions

Change tracking records insert, update, and delete activity applied to tracked tables, supplying the details of the changes in an easily consumed relational format. The following functions return information about the changes.

You can track changes by built in functions.

CHANGETABLE(CHANGES …) function

This rowset function is used to query for change information. The function queries the data stored in the internal change tracking tables. The function returns a results set that contains the primary keys of rows that have changed together with other change information such as the operation, columns updated and version for the row.

CHANGE_TRACKING_CURRENT_VERSION() function

Is used to obtain the current version that will be used the next time when querying changes. This version represents the version of the last committed transaction.

CHANGE_TRACKING_MIN_VALID_VERSION()function

Is used to obtain the minimum valid version that a client can have and still obtain valid results from CHANGETABLE(). The client should check the last synchronization version against the value thatis returned by this function. If the last synchronization version is less than the version returned by this function, the client will be unable to obtain valid results from CHANGETABLE() and will have to reinitialize.

CHANGE_TRACKING_CURRENT_VERSION

Obtains a version that is associated with the last committed transaction. You can use this version the next time you enumerate changes by using CHANGETABLE.

CHANGE_TRACKING_IS_COLUMN_IN_MASK

Interprets the SYS_CHANGE_COLUMNS value that is returned by the CHANGETABLE(CHANGES …) function.

WITH CHANGE_TRACKING_CONTEXT

Enables the specification of a change context, such as an originator ID, when an application changes data.

Refer syntax & usage at http://technet.microsoft.com/en-us/library/cc280358%28v=sql.105%29.aspx