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What is transaction? Transaction is a unit of program implementation that accesses and possibly updated several data items.
(a) Why did SAP introduce the extended star schema?
Explain the Concept of Two-phase Locking It concerns the positions of locking and unlocking operations in each transaction. In this protocol every transaction issue lock and u
What Command You Use What Day of the week were you born
List the table modification commands in SQL? A) Deletion B) Updates C) Insertion D) Update of a view
Data Scrubbing 70,000 records Project Description: We need services of a developer competent in data cleansing/Data scrubbing. Scope: - 70,000 records in CSV format.
What is called an evaluation primitive? A relational algebra operation annotated with instructions on how to evaluate is known as an evaluation primitive.
statical data
Saving Derived Attributes to Avoid Re-computation Data that is derived from other data should be stored in the computed form to avoid re-computation. For this, we could define
what do you mean by consistency in rdbms?
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