What is the difference between join and natural join?

0 Answers  

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What is oracle ? why we should go for oracle database instead of diffrent databases available in the industry.

5 Answers   Polaris,

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what is the difference between a having clause and a where clause? : Sql dba

0 Answers  

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How to create a view on a table which does not exists

4 Answers   Oracle, TCS,

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What is the main difference between a UNION statement and a UNION ALL statement? 1. A UNION statement eliminates duplicate rows; a UNION ALL statement includes duplicate rows. 2. A UNION statement can be used to combine any number of queries; a UNION ALL statement can be used to combine a maximum of two queries. 3. A UNION statement can only combine queries that have parallel fields in the SELECT list; a UNION ALL statement can combine queries with differing SELECT list structures. 4. A UNION statement cannot be used with aggregate functions; a UNION ALL statement can be used with aggregate functions. 5. There is no difference between the two statements; they are interchangeable.

2 Answers   Saman Bank, Sonata,

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How many unique keys can a table have?

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Is sql an operating system?

0 Answers  

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Whis is not false in primary key?

0 Answers   Fintellix,

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Explain the usage of WHERE CURRENT OF clause in cursors ?

3 Answers  

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What is primary key secondary key alternate key candidate key?

0 Answers  

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What is identity column in sql server?

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Write a sql select query that only returns each name only once from a table?

0 Answers  

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