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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How to implement database security?

0 Answers  

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if i want to display the name of students such that to which city they belong must have count greaer than two

0 Answers   Atos Origin,

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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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what are different types of datasets? what are different characteristics or properties of those datasets? what are the advantages and disadvantages of each dataset on each other?

1 Answers   OVGU,

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A lowest level of security by most RDBMS is

0 Answers   Baan Infotech,

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Its possible to use auto increment in oracle or not? If no means why?

1 Answers  

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Explain the table term used in database.

0 Answers  

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sparse lookup and where its options we find in OCI and db2?

0 Answers   TCS,

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What is odm in database?

0 Answers  

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What are the advantages of views in a database?

0 Answers  

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What is ole db used for?

0 Answers  

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