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What does with rollback immediate do?
The ROLLBACK IMMEDIATE command tells the SQL Server that if it can’t complete the command right away, then the other pending transactions should be rolled back.
What does taking a DB offline do?
I’ve had to do this before. Sometimes a nasty bug is found in your app that, even though not malicious, will still corrupt data in your database. Taking the database offline is a quick way to stop the bleeding until you get the bug identified. You can then bring it back online to assess the damage within the database.
What is difference between rollback immediate and with No_Wait During alter database?
So, the main difference between the two options is that for incomplete transactions, No_Wait will terminate and rollback whereas Rollback Immediate or Rollback After will rollback the transactions immediately or after the specified number of seconds.
When to use rollback immediate in alter database?
If the termination clause is omitted, the ALTER DATABASE statement waits indefinitely if there is any lock on the database. Only one termination clause can be specified, and it follows the SET clauses. Where termination would be ROLLBACK IMMEDIATE in your case.
How long does it take to set SQL Server database offline?
Keeping in single_user and restricted_user mode before the activity may not solve your problem completely. This command used to take 20 seconds to two minutes to complete which was acceptable. For the past few weeks it has been taking 15 minutes to over an hour to complete.
Is it possible to take a database offline when doing a..?
Set a read-only database and restore into the new DB server. → Is it possible to restore a read-only DB on the new server? The destination server is already having a read-write (online) database by the same name. Set an offline database and restore onto the new DB server.
What does roll back mean in SQL Server?
Means that all current transactions are Rolled back (the database is reset to the point where the transaction started) . You could also use If you could take a database offline while there were unfinished transactions were running then the database would be in an unstable state with the change neither made nor cancelled