UnityJDBC allows querying multiple databases in a single SQL query.
The UnityJDBC driver can integrate and query any number of JDBC-accessible data sources (including Oracle, SQL Server, MySQL, and Postgres) in a single SQL query. UnityJDBC contains a built-in database engine and optimizer that can be used separately from the integration system. UnityJDBC will automatically translate SQL functions and dialects and can be used when translating from one database system to another.
Features:
Integrate Everything: UnityJDBC allows you to write a single SQL query to extract data from any number of JDBC-accessible data sources. The query can join or match data between sources and return a single ResultSet.
Supreme Performance: UnityJDBC has minimal overhead and contains a unique join algorithm that returns results faster than previous algorithms. The built-in optimizer restructures queries to create the most efficient execution plans. It can process queries larger than main memory.
Standards based: UnityJDBC is pure Java and can be used on any Java-enabled platform (Windows, Linux, UNIX). The system supports standard SQL queries and works exactly as other JDBC drivers. This allows for rapid development of applications that access multiple databases without requiring new middleware software or training programmers on a different development environment. It can be deployed within application and web servers as well as stand-alone Java applications.
Database Annotation: The system allows developers to rename fields and tables in the databases being queried. This makes it easier to track and query the databases.
Matching and Merging Data: The MERGE operator allows queries that go beyond standard joins and track the provenance of the data.
Function Translation: UnityJDBC supports all standard SQL functions, user-defined functions, and translates functions specific to the dialect and level of support on each database system including date/time functions, string manipulation, and LIMIT/OFFSET paging.
Limitations: 30 Days Trial; Trial version will only execute queries up to 100 results.
TAGS: jdbc, SQL, driver, database, java, query, integrate, merge, compare, view, multiple

UnityJDBC 4.0 is 100% clean
This download (UnityJDBC_Trial.zip) was tested thoroughly and was found 100% clean. Click "Report Spyware" link on the top if you found this software contains any form of malware, including but not limited to: spyware, viruses, trojans and backdoors.

 

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