What influences the return value of SqlDataReader.Read()?

SqlDataReader.Read() is a method which returns a bool but adva开发者_C百科nced to the next record in a recordset.

What factors influence whether true or false is returned?

Thanks

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From the help of SqlDataReader.Read:

returns true if there are more rows; otherwise false.

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From the documentation:

true if there are more rows; otherwise false.