What is SYSTEM tablespace and When is it Created?

2 Answers  

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how to find the n'th highest salary from emp ?

10 Answers  

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5. Display full details for the creditor/s who has received the single largest payment. Do not use a table join or set operator anywhere in your query.

6 Answers   Wipro,

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What are the roles of dba?

0 Answers  

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What is difference between UNIQUE constraint and PRIMARY KEY constraint ?

3 Answers  

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The table has 3 columns 4 rows. The output is which column has least null values( A COL SHOULD BE THE OUTPUT) Write the query plz. A B C ---------- 1 NULL 7 2 4 NULL NULL 5 NULL 3 NULL NULL

1 Answers   TCS,

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What is redo log?

0 Answers  

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There is a big table with "n" of rows and 40 + columns .It doesn't have primary key.How do you select the primary key. In other words how do you get the duplicate records.

2 Answers   Microsoft,

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How to define an explicit cursor in oracle?

0 Answers  

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What is the diff between Oracle and SQL Server

1 Answers  

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How to loop through a cursor variable?

0 Answers  

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what is difference between foreign key and reference key

3 Answers   AZTEC, Infosys,

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