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What are axioms? Axioms or rules of inference give a simpler technique for reasoning about
why we fregment at all?
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I need help for my Uni assignments
Explain DML with some examples? DML - Data Manipulation Language: statements used for managing data within schema objects. Some examples: • SELECT - retrieve data from the a da
Define Join and Outer Join and differentiate between them. Ans: Join - It generates all the combinations of tuples from two relations which satisfy a join condition. Oute
Foreign Keys and NULL Let us take the relation: DEPT DEPT ID DNAME BUDGET D1 M
How the time stamps are implemented Use the value of the system clock as the time stamp. That is a transaction's time stamp is equivalent to the value of the clock when the tra
Why Like predicate used for? LIKE predicate: The LIKE predicate searches for strings in which have a certain pattern.
Describe the GRANT function and explain, how it associates to security. What kind of privileges may be granted? How are they revoked? Ans: Since more than one user can aacce
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