Do foreign keys improve performance?

0 Answers  

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There is a table, In one column it has implemented a index, but the index is disturbed by the regular dml statements.. but still we need to keep the index. how it is possible?

1 Answers   Cognizant,

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Does mysql_real_escape_string prevent sql injection?

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What is exception? What are the types of exceptions?

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how is exception handling handled in mysql? : Sql dba

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What sql database should I use?

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What are different types of queries in sql?

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How to call shell script from pl sql procedure?

0 Answers  

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What is the use of count (*) in sql?

0 Answers  

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what is self join and how it works??

2 Answers   Infosys,

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How can I speed up sql query?

0 Answers  

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What are data types in pl sql?

0 Answers  

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