What is pl sql commands?
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How will you select unique values from a list of records?
How to create a view on a table which does not exists
Define tables and fields in a database
What is the difference between the conventional and direct path loader? : aql loader
How can you maintain the integrity of your database on instances where deleting an element in a table result in the deletion of the element(s) within another table?
Explain the concept of normalization.
how to rename an existing column in a table? : Sql dba
Why do we use partitions in sql?
what is sql server agent? : Sql dba
Does sql profiler affect performance?
there are 2 variables called x and y ,x contains 1,2 and y contains 3,4 we have to swap the values from x to y and y to x with out using dummy variables and it can be done only by using a single statement ? how?
What is the difference between local variables and global variables?
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