Question

field can be up to dash character long​

Answer 1

Hold down the [Alt] key and type 0151 on the numeric keypad. Choose Symbol from the Insert menu, click the Special Characters tab, highlight the em dash, and click Insert.

Answer 2

Answer:

Specifying Long Character Field Attributes

Depending on your database environment, the maximum length of a long character field ranges from several thousand characters to 32,767 characters (64,000 bytes).