You are testing the performance of a query the first time you run the query, the performance is slow. the second time you run the query, the performance is fast. why is this?

0 Answers  

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What are the 18 schemas?

0 Answers  

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You have a table with three columns: amount1, amount2, and amount3 in a single row only one of these three columns will have a value and the other two will be null. Write a sql query to retrieve the values from these columns?

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Explain about the relational database?

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Explain what a database is?

0 Answers  

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What is denormalization and when would you go for it?

9 Answers   NBP,

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Pgm A calls Pgm B and pgm B uses cursor, when pgm B is called second time, the program is abending saying the cursor is opened? Why?

0 Answers   IBM,

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what is the use of foreginkey

2 Answers  

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Why does this query return 0?

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How is data stored in dbms?

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Explain about network model?

0 Answers  

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Hi , any one can help me on the same,this is regarding the Informatica Function doc,i want to know how developer is will develop the mapping. pl forwar the any function doc .just for my references. svlc75@yahoo.co.in

0 Answers   Covansys,

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