Re: Databaselink and MySQL
- To: mathgroup at smc.vnet.net
- Subject: [mg72886] Re: [mg72873] Databaselink and MySQL
- From: Chris Williamson <chrisw at wolfram.com>
- Date: Wed, 24 Jan 2007 05:42:06 -0500 (EST)
- References: <200701231026.FAA09263@smc.vnet.net> <45B60F2A.5010201@wolfram.com> <c2baae590701230740w1bf00dc6w8ff1548250ee6bab@mail.gmail.com>
I am not certain what the first error is... As to the second, what is version of the mysql driver are you using? Look in c:\\program files\\wolfram research\\mathematica\\5.2\\AddOns\\Applications\\DatabaseLink\\Java. (5.2 if you are using Mathematica 5.2, 5.1 if you are using Mathematica 5.1) Chris Stern wrote: > Interesting. I think I am getting closer, but not quite there yet. > > The connection file now reads > SQLConnection[JDBC["mysql", "localhost:3306/dbsterntest"], > "Name" -> "MySQL test2", "Description" -> > "test connection to dbsterntest MySQL database", "Username" -> "root", > "Password" -> "$Prompt", "RelativePath" -> False, "Version" -> 1.] > > The location is $UserBaseDirectory/DatabaseResources, as it was before. > > > Two problems: > > 1. OpenSQLConnection creates a continuous stream of errors. > > Syntax::"stresc : "Unknown string escape \P. More... > Syntax::"stresc : "Unknown string escape \M. More... > Syntax::"stresc : "Unknown string escape \M. More... > Syntax::"stresc : "Unknown string escape \d. More... > > 2. JDBC::error: JDBC error: Communication failure during handshake. Is > there a \ > server running on localhost:3306? > > There is a server running on localhost:3306; I have no trouble > connecting to it from dedicated MySQL client software. > > More help? > > Thank you in advance. > > Michael Stern > > On 1/23/07, Chris Williamson <chrisw at wolfram.com> wrote: >> First your conf file should contain the location of your server such... >> >> SQLConnection[JDBC["mysql", "myhost:3306/testdb"], "Name" -> "MySQL >> test", "Description" -> "test >> connection to MySQL database", "Username" -> "root", "Password" -> >> "$Prompt", "RelativePath" -> False, "Version" -> 1.] >> >> >> Next try putting your conf file in >> $UserBaseDirectory/DatabaseResources. Then use the name to call >> OpenSQLConnection["MySQL test"]. >> >> Chris >> >> Stern wrote: >> > I am trying to connect to a MySQL database using Mathematica's >> > databaselink library. I can connect to the test databases provided >> > with Mathematica (which are HSQL databases), and my MySQL databases >> > work well on their own, but when I try to connect to the MySQL >> > database from Mathematica, I get errors. >> > >> > My connection file looks like this: SQLConnection[JDBC["mysql", >> > ToFileName["C:\Program Files\MySQL\MySQL Server 5.0\data", >> > "dbsterntest"]], "Name" -> "MySQL test", "Description" -> "test >> > connection to MySQL database", "Username" -> "root", "Password" -> >> > "$Prompt", "RelativePath" -> False, "Version" -> 1.] >> > >> > I have also tried with the OpenSQLConnection command directly, >> > OpenSQLConnection[JDBC["mysql","C:\Program Files\MySQL\MySQL Server >> > 5.0\data\dbsterntest"],Username->"root",Password->"$Prompt"] >> > >> > In both cases, I get the following error: JDBC::error: JDBC error: >> > Cannot load connection class because of underlying \ exception: >> > 'java.lang.NumberFormatException: For input string: "\Program \ >> > Files\MySQL\MySQL Server 5.0\data\dbsterntest"'. >> > >> > Help? >> > >> > >> >
- References:
- Databaselink and MySQL
- From: Stern <nycstern@gmail.com>
- Databaselink and MySQL