How to make Java work with SQL Server

Question

I know this is a basic question  but I can t seem to find an answer and I apologize  if this question is way too stupid  but here we go   I am supposed to work with SQL Server  no problem so far  and with Java  love java  so no problem here either   but now  What am I supposed to do to make the combination work  I got  JRE 1 6 and the sqljdbc4 jar     Before I put sqljdbc4 jar into my classpath I had sqljdbc jar in it and with a test-program I got this exception   21 08 2009 09 26 59 com microsoft sqlserver jdbc SQLServerConnection  lt init gt  SCHWERWIEGEND  Die Java-Laufzeitumgebung  Java Runtime Environment  JRE   Version 1 6  wird von diesem Treiber nicht unterst  tzt  Verwenden Sie die Klassenbibliothek   sqljdbc4 jar   die Unterst  tzung f  r JDBC 4 0 bietet  java lang UnsupportedOperationException  Die Java-Laufzeitumgebung  Java Runtime  Environment  JRE   Version 1 6  wird von diesem Treiber nicht unterst  tzt  Verwenden  Sie die Klassenbibliothek  sqljdbc4 jar   die Unterst  tzung f  r JDBC 4 0 bietet      at com microsoft sqlserver jdbc SQLServerConnection  lt init gt  SQLServerConnection java 223      at com microsoft sqlserver jdbc SQLServerDriver connect SQLServerDriver java 840      at java sql DriverManager getConnection Unknown Source      at java sql DriverManager getConnection Unknown Source      at msSqlTest DB dbConnect DB java 13      at msSqlTest TestConnection main TestConnection java 7    Sorry for the German     It basically means  that I should use sqljdbc4 jar  b c the JRE I am using is not supported by the driver  So I put sqljdbc4 jar into my classpath  but it didn t work  so I am kinda lost  what I could do   Maybe someone could tell be in an idiot-proof way what I should do     Oh yeah  here is the test appI use   import java sql     public class TestConnection      public static void main String   args              Neue DB und los geht s            DB db   new DB            db dbConnect  jdbc sqlserver   localhost 1433 muff    user    pw              class DB      public void dbConnect   String db connect string                               String db userid                               String db password           try          Class forName   com microsoft sqlserver jdbc SQLServerDriver                 Connection conn   DriverManager getConnection                              db connect string                           db userid                           db password               System out println   connected                       catch  Exception e                e printStackTrace

User · Answer

What about the official JDBC 4 0 compatible JDBC driver from Microsoft

User · Answer

Have you tried the jtds driver for SQLServer

User · Answer

The driver you are using is the MS SQL server 2008 driver  sqljdbc4 jar   As stated in the MSDN page it requires Java 6  to work    http   msdn microsoft com en-us library ms378526 aspx     sqljdbc4 jar class library requires a   Java Runtime Environment  JRE  of   version 6 0 or later    I d suggest using the 2005 driver which I beleive is in  sqljdbc jar  or as Oxbow Lakes says try the jTDS driver  http   jtds sourceforge net

User · Answer

Indeed  The thing is that the 2008 R2 version is very tricky  The JTDs driver seems to work on some cases  In a certain server  the jTDS worked fine for an 2008 R2 instance  In another server  though  I had to use Microsoft s JBDC driver sqljdbc4 jar  But then  it would only work after setting the JRE environment to 1 6 or higher    I used 1 5 for the other server  so I waisted a lot of time on this   Tricky issue

User · Answer

I had the same problem with a client of my company  the problem was that the driver sqljdbc4 jar  tries a convertion of character between the database and the driver  Each time that it did a request to the database  now you can imagine 650 connections concurrently  this did my sistem very very slow  for avoid this situation i add at the String of connection the following parameter    SendStringParametersAsUnicode false  then te connection must be something like url  jdbc sqlserver   IP PORT DatabaseName DBNAME SendStringParametersAsUnicode false    After that  the system is very very fast  as the users are very happy with the change  i hope my input be of same

User · Answer

Do not put both the old sqljdbc jar and the new sqljdbc4 jar in your classpath - this will make it  more or less  unpredictable which classes are being used  if both of those JARs contain classes with the same qualified names   You said you put sqljdbc4 jar in your classpath - did you remove the old sqljdbc jar from the classpath  You said  it didn t work   what does that mean exactly  Are you sure you don t still have the old JAR in your classpath somewhere  maybe not explicitly

User · Answer

If you are use sqljdbc4 jar  use the following code  ResultSet objResultSet   objPreparedStatement getResultSet    if  objResultSet    null      boolean bResult   false    while   bResult       if  objPreparedStatement getMoreResults           objResultSet   objPreparedStatement getResultSet          bResult   true               objCachedRowSet   new CachedRowSetImpl    objCachedRowSet populate objResultSet   if  CommonUtility isValidObject objResultSet   objResultSet close    objResultSet   null

User · Answer

For anyone still googling this  go to  blackboard config tomcat conf and in wrapper conf put an extra line in wrapper java classpath pointing to the sqljdbc4 jar and then update the wrapper conf bb as well  Then restart the blackboard services and tomcat and it should work  It won t work by simply setting your java classpath  you have to set it up in the blackboard config files to point to your jar file with the jdbc library

User · Answer

Maybe a little late  but using different drivers altogether is overkill for a case of user error    db dbConnect  jdbc sqlserver   localhost 1433 muff    user    pw       should be either one of these   db dbConnect  jdbc sqlserver   localhost muff    user    pw        using named pipe  or   db dbConnect  jdbc sqlserver   localhost 1433    user    pw       using port number directly  you can leave out 1433 because it s the default port  leaving    db dbConnect  jdbc sqlserver   localhost    user    pw

[java] How to make Java work with SQL Server?

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