What is concurrency transparency
Write down a short note on the term concurrency transparency?
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Concurrency transparency is where each and every transaction in a distributed database is treated as when it is the only one in the system. Thus when several transactions are running at one time, the outcomes will be the same as when each and every transaction was run in sequential order. The transaction manager assists to provide concurrency control. The three methods that might be used are versioning, locking, and timestamping.
Give a brief introduction of the term universe in SQL? Brief explain the kinds of universes in business objects?
Elucidate briefly what is the mapping variables and mapping parameters?
Elucidate how can we get first 100 rows from flat file in the target?
Illustrates the way to save space while inserting rows monotonically?
Explain the terms SQL Server and adaptive server enterprise?
Explain the term CLIPPER.
Explain the calculation contexts?
Illustrates the benefits of running stored procedure upon a database engine?
Give a brief introduction of the term active data warehousing?
Explain the types of jobs we have within the Data stage?
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