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Explain the Check Clause
The CHECK clause is employed to at the end of a CREATE TABLE statement specify table constraints. This is known as table-based constraint because it applies to every tuple individually and is checked when a tuple is inserted or modified.
The CHECK clause can as well be used to fixed more general constraints by using the CREATE ASSERTION statement of SQL.
Explain What is Relation? A database relation is a predefined row or column format for storing information in a relational database. Relations are equal to tables.
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create an er diagram for production management in film industry
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Mention the purpose of SID and SOD lines SID (Serial input data line): It is an input line by which the microprocessor accepts serial data. SOD (Serial output data line)
What is B-Tree? A B-tree eliminates the redundant storage of search-key values .It permits search key values to appear only once.
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