Write the sql query using dual table for below output? 1 L R --- --- ---- 1 1 1 1 2 1 1 3 1 1 1 2 1 2 2 1 3 2 1 1 3 1 2 3 1 3 3 Write a query using only Dual table with out writing any pl/sql program.

3 Answers   JPMorgan Chase,

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Can we declare a column having number data type and its scale is larger than pricesionex: column_name number(10,100),column_name numbaer(10,-84)

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Which is better join or inner query?

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What are indexes, and what are the different types?

3 Answers  

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How to check if a column is nullable before setting to nullable?

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Compare SQL and PL/SQL.

3 Answers  

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What is a table?

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how to find the First and Last Observation from the table: Ex: OBS Name Sal Ans like: OBS Name Sal 105 E 5000--> 105 E 5000 102 B 2000 104 D 4000 103 C 3000 101 A 1000--> 104 D 4000

4 Answers  

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What are sql functions? Describe in brief different types of sql functions?

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What is mutating sql table?

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I want to display the employees who have joined in last two months. (It should be executed randomly means If I execute the query in March it should display Jan and Feb joined employees. Same query if i execute in Feb, 2007 it should display dec, 2006 and jan 2007 joined employees.

15 Answers   Wipro,

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Is it possible to use Transaction control Statements such a ROLLBACK or COMMIT in Database Trigger ? Why ?

5 Answers  

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