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Help a beginner create a database! ;-)

Anonymous
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Joined: Nov 22, 2008
Posts: 18944
I'm working on a very little program and I need to save some data in a database. I've read a lot about JDBC and SQL, and I'm quite sure to know how to query an EXISTING database.
My problem is that I need my java program to create this database in run time...
Any suggestions?
Thanks a lot..
Stanley Tan
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Joined: May 17, 2001
Posts: 243
Using the executeUpdate() method send DML statements to the database.
Anonymous
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Joined: Nov 22, 2008
Posts: 18944
I really don't get it...shouldn't I be sending DDLs instead of DMLs to create the database in runtime?
Could you be a little bit more specific? Perhaps some code would clear this out for me.
Thanks a bunch
Jamie Robertson
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Joined: Jul 09, 2001
Posts: 1879

My problem is that I need my java program to create this database in run time...

Don't know if this is even possible. Since a connection object needs an existing database to connect to, you can't use a connection if it doesn't exist. So although you may be able to make some sort of system call outside java, there is no way using jdbc.
Another solution would be to use text files (like random access files ). "I'm working on a very little program and I need to save some data in a database. " This leads me to believe that the scope is relatively small and that using textfiles might be sufficient.
Jamie
Bosun Bello
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Joined: Nov 06, 2000
Posts: 1510
You are correct Jamie. It's not possible as far as I know. Harold, are you actually trying to create a table instead of a database? Doing the former is definitely possible at runtime.


Bosun (SCJP, SCWCD)
So much trouble in the world -- Bob Marley
Anonymous
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Joined: Nov 22, 2008
Posts: 18944
Thank you all for your posts!
I think I'm going to use some other data structure designed in a class, and serialize objects, or as you (Jaime) say, using a simple text file. But I guess a serialized object representing what I want to save in some data structure would work as well.
I will be saving about 700 records in this text file or object (which would contain a list of records). But would be very nice to have the advantages of relational databases...
Once again, thanks a lot!!!
Anonymous
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Joined: Nov 22, 2008
Posts: 18944
Bosun, out of curiosity, how would you create a table in runtime?
-Harold
Bosun Bello
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Joined: Nov 06, 2000
Posts: 1510
Harold, you just need to execute a create table statement.
"CREATE TABLE yourTableName (columnName dataType, ....)
You also need to use the createStatement.....
Statement statement = connection.createStatement();
Jamie Robertson
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Joined: Jul 09, 2001
Posts: 1879

Originally posted by Harold A. Gim´┐Żnez:
Bosun, out of curiosity, how would you create a table in runtime?
-Harold

This link should be useful.
Anonymous
Ranch Hand

Joined: Nov 22, 2008
Posts: 18944
Once again, Thanks a lot...
Your posts have been of great help!
Harold!!
 
I agree. Here's the link: http://aspose.com/file-tools
 
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