In some fields, it is possible to use the * and ? characters as wildcards:
- The * character represents any number of characters.
- The ? character represents 1 any character.
Examples:
- ? A* specifies any chain starting with the letter A.
- ? ??X?? specifies a 5 characters chain with a X in the middle.
- ? ??* specifies any chain containing at least 2 characters.