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Mention the type of constraints we can specify in the CREATE command of DDL.
The type of constraints that can be specified are as follows:-
PRIMARY KEY, NOT NULL, UNIQUE, FOREIGN KEY, CHECK.
What is a Transaction? A transaction is an event which happens on the database. Generally a transaction reads a value from the database or writes a value to the database. If y
What is conceptual schema? The schemas at the view level are known as subschema that describe dissimilar views of the database.
give some example real-life situations where DBMS are most suiitabe
Define physical image of a global relation at a site
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 ap
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assume we have the following apllicationthat model sccer team the games they play and the players inv each teamin the design we want to capture
Designing the fields in the data base The following are the considerations one has to remain in mind while designing the fields in the data base. Coding, compression, en
Logical Operators Rules of Precedence: Order evaluated Operator 1 All comparison operators 2
The Proliferation of Object-Oriented Methods The first few years of the 1990s saw blossoming of around fifty various object oriented methods. This proliferation is a sign of g
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