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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);
What is NULL? Simply NULL means not in value.
Explain the disadvantages of using DBMS There could be a few disadvantages of using DBMS. As DBMS requires computers, we have to invest a good amount in acquiring the hardwa
3 assignments combined in 1
Hashed File Organisation Hashing is the most common form of purely random access to a database or file. It is also used to access columns that do not have an index as an optimi
Define database management system? Database management system (DBMS) is a set of interrelated data and a combination of programs to access those data.
What is object identity? An object retains its identity even if some or all the values of variables or explanations of methods change overtime.
What is a primary key? Primary key is chosen by the database designer as the principal means of identifying an entity in the entity set.
A relationship set is a set of relationships of the similar type. For example, let consider the relationship among two entities sets course and student. Collection of all the in
how to data store?
anyone have a textbook solutions case fair, 8 edition of vol 1 ?, please give me
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