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SQL Anywhere identifiers
Identifiers have a maximum length of 128 bytes. They must be enclosed in double quotes or square brackets if any of the following conditions are true:
| • | The identifier contains spaces. |
| • | The first character of the identifier is not an alphabetic character (as defined below). |
| • | The identifier contains a reserved word. |
| • | The identifier contains characters other than alphabetic characters and digits. |
Alphabetic characters include the alphabet, as well as the underscore character (_), at sign (@), number sign (#), and dollar sign ($). The database collation sequence dictates which characters are considered alphabetic or digit characters.
The following characters are not permitted in identifiers:
| • | Control characters (any character less than 0x20) |
You can use a single backslash in an identifier only if it is used as an escape character.
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