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jConnect is a pure Java JDBC driver for SQL Anywhere. Sybase Central and Interactive SQL give you the option to enable the jConnect JDBC driver so that Java applications can access SQL Anywhere databases.
By default, jConnect is not enabled for databases being created for Windows CE. However, you can choose to enable jConnect if you require it.
Adding jConnect support to a database adds many entries to the system tables. This adds to the size of the database and, more significantly, adds about 200 KB to the memory requirements for running the database, even if you do not use any jConnect functionality.
If you are not going to use jConnect, and you are running in a limited-memory environment like Windows CE, it is recommended that you do not jConnect support to your database.