How does a self join work?


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More SQL PLSQL Interview Questions

What is sql trigger example?

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What is sql key?

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What are types of joins?

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Is sql easier than java?

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When the mutating error will comes? and how it will be resolved?

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What are some predefined exceptions in pl/sql?

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What is an escape character in sql?

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Can a table have two primary keys?

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How to process query result in pl/sql?

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