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A standard for specifying consistency rules that apply to the specifications contained in an RDF.
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Tuesday, May 13, 2008
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The acronym for the four properties guaranteed by transactions: atomicity, consistency, isolation, and durability.
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Monday, May 12, 2008
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A transaction is a logical unit of work in which, all the steps must be performed or none. ACID stands for Atomicity, Consistency, Isolation, Durability. These are the properties of a transaction. For more information and explanation of these properties, see SQL Server books online or any RDBMS fundamentals text book.
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Saturday, May 10, 2008
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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 ACID (Atomicity, Consistency, Isolation, and Durability) properties, to qualify as a transaction.
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Saturday, May 10, 2008
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DBCC stands for database consistency checker. We use these commands to check the consistency of the databases, i.e., maintenance, validation task and status checks.
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Saturday, May 10, 2008
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DBCC CHECKDB - Ensures that tables in the db and the indexes are correctly linked.
DBCC CHECKALLOC - To check that all pages in a db are correctly allocated. DBCC SQLPERF - It gives report on current usage of transaction log in percentage. DBCC CHECKFILEGROUP - Checks all tables file group for any Damage.
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Saturday, May 10, 2008
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