How can get second highest salary in sql?

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What is difference between inner join and cross join?

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Explain commit, rollback and savepoint.

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What are the differences between in and exists clause?

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Does oracle roll back the transaction on an error?

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Let us suppose we have a table with structure in order empno empname empdesig empcountry and now i want to re-organize the columns of this table to empno empdesig empname empcountry how can i do this with queries ? assume that table contains the data.

3 Answers  

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What is the difference between DELETE and TRUNCATE?

15 Answers   Johns Hopkins University, Tech Mahindra,

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what is primary key? : Sql dba

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8 Answers   Wipro,

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Explain sql data types?

0 Answers  

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how do you control the max size of a heap table? : Sql dba

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What has stored procedures in sql?

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