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Write short notes on relational model The relational model uses a collection of tables to show both data and the relationships between those data. The relational mo
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What is the way a particular application views the data from the database that the application uses? Sub schema is the way a particular application views the data from the data
What is relationship instance ? Relationship Instance - A relationship is a relation between two or more entities. An instance of relationship set is a set of relationships.
What is trigger Triggers are statements that are implemented automatically by the system as the side effect of a change to the database.
What is the difference between SQL Server 2000 clustered and nonclustered indexes? With a clustered index, the data are kept in the bottom level of the index and in the similar
Consider student (std_id, std_name, date_of_birth, phone, dept_name). Put the data for a student with student id200, name arun, birth date 1 February, 1985, phone number (01110 328
Java program for horrizontal fragmentation in distributed database
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To eliminate duplicate rows (distinct operator) Example: SELECT DISTINCT DEPTNO FROM EMP;
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