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Search results for oracle



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 ...
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 ...
Table Constraints define rules regarding the values allowed in columns and are the standard mechanism for enforcing integrity. SQL Server 2000 support ...
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 ...