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Define the following constraints for the table client.
(i) BAL_DUE must be at least 1000.(ii) NAME is a unique key.
(i)ALTER TABLE CLIENT ADD CONSTRAINT CLIENT_BAL_DUE_C1 CHECK(BAL_DUE < 1000); (ii) ALTER TABLE CLIENT ADD CONSTRAINT CLIENT_NAME_U UNIQUE(NAME);
An employee record has the following structure struct employee { int eno; char name[22]; float salary; char dept[10];}; (i) Calculate the record size R in bytes.
Aggregation Aggregation is stronger form of association. It represents the "has-a" or "part-of" relationship. An aggregation association depicts a complex object which is comp
Convert the following ER - diagram (Entity Relationship Diagram) into a relational database (the primary keys are underlined): Ans: The relational database schema f
Whta is the advantage of the database management approach? The advantage of the database management approach is data is integrated and can be accessed by multiple programs.
What is the aim of object design The aim of object design is to identify object which the system contains and the interactions among them. The system implements specification
Which of the operations constitute a basic set of operations for manipulating relational data? Relational algebra operations constitute a basic set of operations for manipulati
Explain about database system structure? Storage manager Authorization and integrity manager Transaction manager File manager Buffer manager Storage manager
Explain Deadlock detection and recovery Deadlock Detection - A deadlock is said to take place when there is a circular chain of transaction, every waiting for the release of a
Hi I have got an assignment for making an er diagram for market management software can any budy help me?
Why is database design important?
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