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SQL Relay is a persistent database connection pooling, proxying, and load balancing system. It supports many database systems and programming languages. There are drop-in replacement libraries for MySQL and PostgreSQL, command line clients, a GUI configuration tool, and extensive documentation. The APIs support advanced database operations such as binding variables, multi-row fetches, client-side result set caching, suspended transactions, query routing, and query filtering. It can be used for speeding up database-driven Web-based applications, accessing databases from unsupported platforms, migrating between databases, distributing access to replicated databases, and throttling database access.

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Information regarding Project Releases and Project Resources. Note that the information here is a quote from Freecode.com page, and the downloads themselves may not be hosted on OSDN.

2013-01-29 07:47
0.49.1

sqlrserver-config returns the correct library now. A NULL dereference in custom_nw has been corrected.

2013-01-01 15:31
0.49

Modular frameworks were added for logging and password encryption. The ODBC driver has been improved significantly. Various obscure bugs were fixed. Client API calls were added for getting the hostname and IP address of the database. The client-server protocol has been refactored to remove two round trips. The Windows build script now supports CLR and non-CLR builds.

2012-01-19 06:23
0.44

This release introduces MySQL statement API support in the drop-in library, DB-agnostic API methods to return db, table, and column lists, to get and set the current schema/db and to get the last insert id. This release also features bind variable format translation, the ability to fake transaction blocks for db's that don't support them, and the ability to run a set of queries at the start and end of a client session. The sqlrsh command line client now supports bind variables.

2011-08-17 06:53
0.43

Detection of various languages and databases in the configure script was improved. Many compatibility tweaks for Ruby, Tcl, db2, and OS X were made. Many direct calls to POSIX functions were replaced with rudiments process-class calls. Connect-string parameters to define the character set were added for most databases. There's a new "getting started with ODBC" document, and the FAQ was updated with information about stored procedures that return result sets.

2011-07-01 06:26
0.42

The configure script was updated to detect modern versions of many languages and databases. The Java API should work on 64-bit machines now. The address="" bug is fixed. Oracle cursor bind and CLOB bugs were fixed. The maxsession parameter defaults to 0 (disabled) now. Patches were applied to improve stability under high load, manage race conditions, improve status reporting, and to address specific, unusual situations. Many obscure bugs, memory leaks, and border cases were addressed.

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Project Page 首頁 下載: TGZ