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What is foreign key in sql with example?


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More SQL PLSQL Interview Questions

If records are inserted into table without committing.How to refer to these values in a procedure?

2 Answers  


how to find the second highest salary from emp table?

211 Answers   CIS, Cognizant, Cosmosoft, DAS, EDS, GreenTech, HOV Services, IBM, Infosys, National Institute of Science and Technology, Patni, Persistent, Polaris, TCS, Wipro, Yardi, Zensar,


What is Data Concarency and Consistency?

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How do you concatenate in sql?

0 Answers  


Use The Implicit cursor to Query The Department table information Where Deptno is 30.check,if no record was found then print "Record Was Not Found".Else Print Deptname And Ename.Dept table Have Dname Varchar2(20),Deptno Number,EnameVarchar2(20).Please Answer In 2 mins,with in Maximum 15 lines.

5 Answers   Wipro,


How do you explain an index number?

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What is insert command in sql?

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Is sql a microsoft product?

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suppose I have two table one Emp and other is dpt. Emp table has a field ,dept id,name ,sal and dpt table has a field dept id,dept name. Now I want to find out the emplyee list whose sal is between 2000-3000 from dept x.

7 Answers   Geometric Software, IBM,


What is the difference between view and stored procedure?

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What is the difference between database trigger and stored procedure?

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What is string join?

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