Updating columns with the rowguidcol property is not allowed


20-Dec-2016 22:53

@vishalsharma, go to the following link and scroll down to read Clifford Dibble's answer: microsoft.com/Forums/sqlserver/en-US/…

Essentially it just tags the column so that it can be referenced generically via $ROWGUID.

This ensures transactional consistency and reduces management complexities, but is bad for performance.

The other approach is to store the unstructured data as disk files and store the location of the file in the table along with the other structured data linked to it.

When a new row is added to the table, Microsoft SQL Server Compact provides an incremental value for the column.

Identity columns are typically used in conjunction with PRIMARY KEY constraints to serve as the unique row identifier for the table.

It is not permitted because replication cannot track the changes caused by the operation: transactional replication tracks changes through the transaction log; merge replication tracks changes through triggers on published tables.

updating columns with the rowguidcol property is not allowed-63

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updating columns with the rowguidcol property is not allowed-77

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Be aware that producing a snapshot can be resource-intensive, so it is best to generate snapshots during periods of lower activity on the database (by default a snapshot is generated when you complete the New Publication Wizard).

Constraints are special properties that enforce data integrity and create special types of indexes for the table and its columns.

SQL Server Compact can use indexes to enforce PRIMARY KEY and UNIQUE constraints.

Initially, the accounts of FILESTREAM assumed prodigious powers of concentration and cognition, and we mortals all recoiled numbly.

However, it became clear that we were missing out on some extraordinarily useful functionality, so we asked Jacob Sebastian to come up with a simple and clear-cut account of the FILESTREAM feature in SQL Server 2008. Storing and managing unstructured data was tricky prior to the release of SQL Server 2008.

If you define your entities carefully, then defining attributes should be relatively straightforward.



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