Is there a way to detect SQL Dialect without knowing the database type?

问题

I'm using Dbeaver to connect via ODBC to a database. I have no idea what type of database it is. It might be proprietary. Who knows?

Is there a way to figure out what dialect of SQL to use? LIMIT statements aren't working, and I don't want to destroy things by selecting * all day long.

I've tried a couple other ways to limit results - https://en.wikipedia.org/wiki/Select_(SQL)#Limiting_result_rows - but I couldn't find an option that worked.

Thanks in advance!

回答1:

Assuming you are doing this database server identification one time, you can issue queries to see which ones work or fail to determine the database server type.

For SQL Server, there are many such as selecting one of the @@ variables Select @@version.

For Oracle, Select 1 FROM DUAL;

Both queries do not modify any data and should run quickly. There are equivalent others for other database servers.

One could also look at the connection string and find out what type of database driver is being used.

回答2:

Tried a few more limit-style statements and found it to be SQL Server/ Access

来源：https://stackoverflow.com/questions/58437763/is-there-a-way-to-detect-sql-dialect-without-knowing-the-database-type