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What is trigger
Triggers are statements that are implemented automatically by the system as the side effect of a change to the database.
Candidate Key: In a relation R, a candidate key for R is a subset of the set of attributes of R, which have the differnt two properties: (1) Uniqueness: N
Modular growth: In distributed environments, it is simple to expand. Latest sites can be added to the network without affecting the operations of other sites, as they are somewhat
List and also explain the dissimilar stages of DDLC ?
What are temporary tables? Temporary tables exist solely for a particular session or whose data persists for the duration of the transaction.
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What are the various symbols used to draw an E-R diagram? Explain with the help of an example how weak entity sets are represented in an E-R diagram. Various symbols used to d
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DROP TABLE Command: When an existing object is not needed for further use, it is always better to eliminate it from the database. To remove the existing object from the databas
Define Forms Based Interfaces? Forms-Based Interfaces - A forms-based interface display a form to each user. Forms are commonly designed and programmed for naive users and inte
Logical Operators Rules of Precedence: Order evaluated Operator 1 All comparison operators 2
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