Is there any function in oracle similar like group_concat of mysql?

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What is key preserved table?

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How to create an initialization parameter file?

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How would you go about verifying the network name that the local_listener is currently using?

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How data locks are respected in oracle?

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write sql query following source are EmpID, Salary 101 1000 102 2000 103 3000 I want the output format like following empid,sal,composite_sal 101 1000 1000 102 2000 3000 103 3000 6000

4 Answers   TCS,

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What is difference between a formal and an actual parameter?

1 Answers  

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I have a table emp. There is only one column in the table. In that , there are only three rows in that column. The value in the first row is 'A' and the value in the second row is 'B' and the third row is 'C'. Now, my question is , How will you write a select query to display the output as B C A Note: order by cannot be used coz it gives us output as CBA. But the output should be BCA.

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How to rename an index?

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Can a primary key contain more than one columns?

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i have procedure p1.and also i declare the same procedure in a package. whice one is efficient package procedure or procedure?

2 Answers   Microsoft,

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What is the purpose of save points in oracle database?

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