What is SYS_GUID() function? and what is the purpose of SYS_GUID function?

Oracle Apps Interview Questions › Category: PL/SQL › What is SYS_GUID() function? and what is the purpose of SYS_GUID function?

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Questions Master asked 9 years ago

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Shailender Thallam Staff answered 9 years ago

In Oracle PL/SQL, SYS_GUID is a built in function which returns the Global Unique Identifier (GUID) for a row in a table. It accepts no arguments and returns a RAW value of 16 bytes. Note that it is different from ROWID.

SYS_GUID can be used as a default value for a primary key column, which is often more convenient than using a sequence but its not recommended to use as it occupies more space.