Explain transaction control commands with example

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Reference no: EM133268747

Question 1. Define Primary key, Candidate key and Super key, Unique Key, Foreign Key.

Question 2. Explain transaction Control commands with Example.

Question 3. Explain DDL, DML, and DCL.

Question 4. Find staff whose salary is larger than the salary of every member of staff Consider the following relations:
BRANCH(bno, street, area, city, pcode, Tel_no, Fax_no) STAFF(Sno, Fname, Lname, address, position , salary, bno) Express the following queries in SQL:
(i) List the staff who work in the branch at ‘163 main street'
(ii) Find staff whose salary is larger than the salary of every member of staff at branch B3.

Question 5. Explain Aggregate Functions in detail.

Reference no: EM133268747

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