On Thu, Jun 7, 2012 at 3:08 AM, Simon Walter <si...@gikaku.com> wrote: > On 06/07/2012 12:29 PM, Lars Nilsson wrote: >> I've been happy using SQLAPI++ (http://www.sqlapi.com/) where I work. >> Commercial and not open source, but it's cross-platform and supports a >> dozen or so different databases.
> It looks nice. I'm looking for something open source. I'm fine using one of > the SQL connectors. I just need to know which one works. How does SQLAPI++ > connect to MySQL? Is it thread safe? It loads the libmysqlclient dll/so libraries under the hood, mapping each database client library's particular function set to its own internal function pointers. I believe it to be thread-safe (pthread mutexes on Linux/Unix, Windows relies on mutex/critical section objects). Instances of SAConnection objects should probably not be used across threads simultaneously though (usual caveats when doing multi-threaded programming apply, etc). I do like the high-level abstraction of the databases, and the use of exceptions for errors so every statement doesn't need to have a check to see if it was successful (just wrap your sequence of operations in a try/catch as makes sense for the application). I know it reduced my database-specific lines of code quite a bit when I changed a MySQL specific program to using SQLAPI++. If one need to, it is always possible to get a native database handle out that can be used with the database-specific API (at which point your program would have to be linked with the required database-specific client libraries, and so on), but it is not something I have really needed personally. If at all possible, I stay in the realm of SQLAPI++ which makes my program independent of the database libraries (implies I do not use native handles). It means I can compile my program without having Oracle installed for instance, and as long as a user has some means of configuring my program so that SA_Oracle_Client is passed to a connection object (mapping from string to the enum value or whatever else make sense), it should just work, given a proper connection string (as long as one handles the special cases properly as outlined in database specific notes for the classes and methods, etc) I'm sorry if I sound like a sales person for SQLAPI++. I have no relation to it, just a satisfied user. Lars Nilsson -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe: http://lists.mysql.com/mysql
