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Database Development

Is an Oracle SID UPPERCASE or lowercase?

This may sound silly, but is an Oracle Service Identifier (SID) aka database name normally in upper or lowercase? According to the documentation, a SID “can contain only the characters a-z, A-Z, and 0-9”, so both upper and lowercase is allowed. In my experience, it usually doesn’t really matter. However, I am installing Oracle 11.2 […]