What is a unique key and primary key and foreign key?

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what is the cursor and use of cursor in pl/sql ?

4 Answers  

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Explain cursor types?

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What is basic structure of pl sql?

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how do you restrict number of rows for a particular value in a column.For example:there is a table called fruits,having apples,bananas ,papayas.I dont want to have more than 100 apples in that table ,so how can u restrict number of rows for apple to hundred?

6 Answers  

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What is minus?

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select 1,col1,col2 from table1. output?

5 Answers   Ramco,

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How do you retrieve the second highest salary from a table?

3 Answers  

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What is embedded sql in db2?

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if i perform any operation on views such as insert, delete etc will my base table get affected?????

4 Answers  

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Write a sql query to convert all character to uppercase after hypen.

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What is faster join or subquery?

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