Explain about network model?
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How can you fix a poorly performing query?
Explain the rollup operator?
How would you design a database for an online site, which would average a million hits a day?
Explain the process of the user request and data generating?
How do you implement one-to-one, one-to-many and many-to- many relationships while designing tables?
1 Answers Flextronics, Hexaware, SQL Star,
agregator gives one to many records or many to one record
what is difference between primary key and unique key ?
What are cursors? Explain different types of cursors?
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?
When installing the datastage7.5x2 edtion iam getting aproblem i.e the cpu count is 2 but the cpu count in installation is one . how can i install in my p.c (system is dual core).
How you can make a parameterized view?
How to customize error conditions.
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