At the most basic definition, "a key is a unique identifier", so unique key is a pleonasm. Keys that are within their originating entity are unique within that entity.

But to run the JDBC programs, the JDBC driver's JAR-file must be included in. How to fix: MySQL Duplicate entry for key PRIMARY on Auto In this tutorial, you will learn how to use MySQL INSERT statement to insert data into database tables.

ON DUPLICATE KEY UPDATE.

HSQLDB2. 4. 0 Released. Sixteenth anniversary release, 9 April 2. Version 2. 4. 0. for Java 8 adds support for java. JDBC and adds. many enhancements.

These include table spaces for disk- based. SQL routine. support. Version 2. 3. 4 added the UUID type for columns is now. SYNONYM for tables and functions, PERIOD. TIMESTAMP columns on row updates. Canon Mx850 Cd Label Print Download Free more.

Ability to cancel long- running. JDBC, as well as from admin sessions has been.

UTF- 1. 6 files are now supported for text table sources. My. SQL compatibility for.

REPLACE, INSERT IGNORE and ON DUPLICATE KEY UPDATE statements. This release incorporates extensive. HSQLDB (Hyper. SQL Data.

Base) is the leading SQL relational. Java. It offers a small, fast.

It supports nearly full Advanced ANSI- 9. SQL (BNF format). See the list of new. HSQLDB has been constantly developed over 1.

Open Source Software projects and many commercial. The latest versions are extremely stable and. It is known for its small size, ability to execute. HSQLDB is completely free to use and distribute. BSD license and fully compatible with all. The database performance test package Pole.

Position compares. We ran the Pole. Position 0. HSQLDB 2. 2. 6 embedded and server (both with disk tables. Apache Derby embedded and.

My. SQL+Inno. DB server. See the. results, which show the query processing improvements. HSQLDB 2. 0 Background. Hyper. SQL is developed and published by the The HSQL. Development Group. The group was formed in 2.

Version 2. 0 was released in 2. JDBC implementation. The engine. has been developed much further in version 2. Direct downloads from Source. Forge exceed 2,0.