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?
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On friday, you issued several insert statements using query analyzer. You then verified the data had been correctly entered with a select statement on monday, your users report that the data is not there what happened?
What are cursors? Explain different types of cursors?
fact table and dimension table containg one to many relationship or many to one relastionship
What is data modeling with example?
How to replace not in with not exist?
how will I find the duplicate rows count from employees tablein oracle.
If a column is an image value type, how you can compare column values? How can you use this column in join clause?
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
What are the 18 schemas?
what is the use of foreginkey
Explain about the relational database?
The count() function always returns a int value type what should you do if you need to count rows from a query which you know will return a value that is too large for an int value type?
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