Differentiate between extension & intension?

0 Answers  

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if we have set auto differencial back up then waht is difference between 1.appen to media 2.over right the existing media

1 Answers   Indian Web Technology,

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Given a table Employee which has columns name and salary, write an SQL query to find the employee with the second highest salary.

0 Answers   Amazon,

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Write the major components of a Database Management System?

3 Answers  

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query to Compare data of two tables between two different Databases(Oracle and SQL Server) Eg., Source Database: Oracle Table: Employee Target Database : SQL Server Table : emp

0 Answers   Verizon,

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Please post the scenerois for writing the complex sql queries , for my practice.Can be any query if you cannot solve.

0 Answers  

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What are the types of indexes that are present inside a database?

0 Answers   Abacus,

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Is hive a database?

0 Answers  

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How concurrency problems effect the database?

0 Answers   BirlaSoft,

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What is the relationship that exists inside in E-R diagram?

0 Answers   CGI,

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what is primary key,unique key, foreign key? can u teach me in simple language?

44 Answers   Banking, CMC, CTS, HCL, Infosys, Keggfarms, SkyEss, Sunrise, TCS, Web Synergies, Wipro,

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What are the types of joins?

0 Answers   Tavant Technologies, Zensar,

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