Max Key Length Error

[Brian Rivet]

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Sorry, I'm a little new at this, here's the statement:

CREATE TABLE `TblUsers` (`UserId` INT(5) UNSIGNED DEFAULT NULL NOT NULL
AUTO_INCREMENT, `FirstName` VARCHAR(255) DEFAULT 'unknown' NOT NULL,
`LastName` VARCHAR(255) DEFAULT 'unknown' NOT NULL, `UserName`
VARCHAR(255) DEFAULT 'unknown' NOT NULL, `UserPass` VARCHAR(255) DEFAULT
'unknown' NOT NULL , PRIMARY KEY (`UserId`), INDEX (`UserId`,
`LastName`, `UserName`), UNIQUE (`UserId`, `UserName`))

It says the max key length is 500, I'm not sure what it's referring to,
so I don't know what to fix.

Thanks for any help you can give me.

Brian Rivet

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