LIKE predicate limitations
If data in a column is longer than 255 characters, the LIKE
comparison is based only on the first 255 characters.
A LIKE
used in a procedure is supported only with constant patterns. The Desktop Database Drivers support SQL-92 LIKE
pattern matching.
Use of an escape clause in a LIKE
predicate isn't supported.
A LIKE
comparison shouldn't be performed on a column containing data of a numeric or float data type. The results might be unpredictable. For more information, see the Microsoft Jet Database Engine Programmer's Guide.