The value NULL is a very tricky subject in the database world, so don't be surprised if several applicants trip up on this question.
The value NULL me ...
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What does NULL mean?
Posted by DevinWhat is Transaction?
Posted by Devin
A transaction is a sequence of operations performed as a single logical unit of work. A logical unit of work must exhibit four properties, called the ...
What are the constraints ?
Posted by Devin
Table Constraints define rules regarding the values allowed in columns and are the standard mechanism for enforcing integrity. SQL Server 2000 support ...
What is a LiveLock?
Posted by Devin
A livelock is one, where a request for an exclusive lock is repeatedly denied because a series of overlapping shared locks keeps interfering. SQL Serv ...
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