what are integrity rules?

0 Answers  

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What types of commands can be executed in sql*plus?

0 Answers  

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How do we tune the code?

2 Answers  

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What is a cursor for loop ?

4 Answers  

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what is SCALAR Queries?

2 Answers   ITC Infotech,

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Is left join inner or outer by default?

0 Answers  

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Is subquery faster than join?

0 Answers  

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Is it possible to remove child records without removing master table records...the two having pk,fk relationship?

0 Answers  

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Practice 1: Changes to data will only be allowed on tables during normal office hours of 8.45 in the morning until 5.30 in the afternoon, MONDAY through FRIDAY. A. Create a procedure called SECURE_DML that prevents the DML statement from executing outside of normal office hours, returning the message: “you may only make changes during normal office hours” b. Create a statement trigger on the PRODUCT table which calls the above procedure. c. Test it by inserting a new record in the PRODUCT table.

1 Answers   Tech Mahindra,

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What are different functions in sql?

0 Answers  

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1. what is the exact use of hint in sql. 2. How we can avoid index scan in sql even though index is there in the table.

1 Answers   Polaris,

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If I have a table T with 4 rows & 2 columns A & B. A has values 1,2,3,4. and B has 10,20,30,40. Write an Update SQL query which can Swap the values of A & B for all records. (Do not use a sub-query)

5 Answers  

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