October 2003
Intermediate to advanced
480 pages
8h 20m
English
Content preview from Enterprise J2ME™: Developing Mobile Java™ ApplicationsBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Chapter 12. Mobile Databases for MIDP Devices
CHAPTER OVERVIEW
PointBase Micro Edition
The Oracle J2ME SODA SDK
The IBM DB2e FastRecordStore
On MIDP devices, full relational databases prove to be too expensive. The standard MIDP does not even support basic SQL types such as the Float type. On the other hand, the standard persistent storage facility (i.e., the RMS) on the MIDP is terribly inadequate for enterprise applications. RMS stores are very slow. They are neither indexable nor searchable. RMS’s linear structure makes it a pain to handle relational or object data.
To address this problem, database vendors have developed simple database solutions on top of the RMS. Since those databases are extremely lightweight, full support for the JDBC API is ...
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