问题
I've downloaded and imported into my project this JDBC driver that supposedly supports Linux (albeit tested only on SUSE Linux).
What I want is to be able to use a .mdf database through Java on Linux. The queries obviously need something to run on, not simply connect to a database - if I am understanding this correctly. I found a question on SO that seems to have valuable information concerning my issue.
So I was thinking a FreeTDS + JDBC combination. Will queries execute as expected or do I have to go use the database natively, on Windows? The latter basically crushes OS agnosticism that Java provides which I would like avoid, if possible.
The database itself isn't anything fancy, only a few tables - this is merely a school assignment, after all. I will provide additional information, if needed.
回答1:
An mdf file can be an old (JET based) Microsoft Access database file, so a JDBC driver for SQL Server, a totally different product, isn't going to help you much. Here on SO there are a couple of posts that explain how to use the JDBC-ODBC bridge to access Access databases via the ODBC driver detour, but since you specifically mention Linux that's not going to help you.
I see two possible (free) approaches:
- use the open source jackcess package that allows Java programs across platforms to open, read and write MS Access database
- transfer the content of the MSAccess database file to some database that has native Java drivers (that is, most of them that are not MS Access).
However, an mdf file could also be a SQLServer database, but using that database under Linux is also going to be quite tricky, as you'll need some edition of SQL Server to open it - see here for some details on how to "attach" such an mdf file to an installed instance of SQLServer - but to my knowledge there is no edition of SQL Server that runs under Linux. So, unless you can find some Windows machine to run SQLServer on, and then connect to it using the JDBC driver you have both options mentioned before may be valid alternatives (ie, option 1 = copy your data into an MSAccess file and access that file with jackcess or option 2, copy the data into some Linux-tolerant database with a decent JDBC driver and use that)
回答2:
Some people have been mislead by my question (I am not a native speaker of English, could be that), the database was meant to be run locally (explicitly not on a remote server) which simply cannot happen with the SQL Server + Linux combination. Wine is a possibility, but that is just too much hassle. So, the solution is either to simply use SQL Server on Windows or use an alternative cross-platform RDBMS like MySQL. Nevertheless, I'll accept fvu's edited answer and would like to thank other users for the time they've invested in their own answers.
来源：https://stackoverflow.com/questions/20962310/java-connecting-to-a-sql-server-database-on-linux