The LONG VARCHAR type allows storage of character strings with
a maximum length of 32,700 characters. It is identical to VARCHAR, except
that you cannot specify a maximum length when creating columns of
this type.
Syntax
LONG VARCHAR
Corresponding compile-time Java type
java.lang.String
JDBC metadata type (java.sql.Types)
LONGVARCHAR
When
you are converting from Java values to SQL values, no Java type corresponds
to LONG VARCHAR.