Quality | Convention | For ANSI/ISO Entry SQL-92 Compliant Databases |
---|---|---|
Size | 32 bytes maximum; 256 bytes maximum for many objects. For details, see Object Naming Rules in the SQL Reference Guide. | No more than 128 characters |
First character | Must be alphabetic (a‑z) or the underscore (_) | Must be alphabetic (a‑z) |
Other allowable characters | 0‑9, #,@, and $ allowed after the first character | Only alphabetic, numeric, or underscore characters allowed |
Case sensitivity | Case insensitive | Case insensitive |