What is a cursor and what are the steps need to be taken?
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How to test null values?
difference between bind variable and variable
What is an oracle transaction?
There are three tables : E : EID,ENAME D : DID,DNAME empdept : eid, did select the employees who doesn't belong to any dep
How many different types of indexes we have in oracle?
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What privilege is needed for a user to create views in oracle?
You have 4 instances running on the same UNIX box. How can you determine which shared memory and semaphores are associated with which instance?
how can get like this result table A col1 col2 --- ----- a A b B C C .. .. .. ... .. ... wants result like for a single column col1 ------ a,b,c,........n of data and another is col1 ------- A B C D ........ a b b d ........