connection to a RDBMS.
connect(url, prop={})
same as DriverManager.getConnection(url, prop). returns a new Connection object if connect OK.
createStatement(sql=nil)
If OK, returns a Statement object.
specify sql
string to make the Statement object PREPARED.
close
closes self and children.
commit
commit.
rollback
rollback.
autocommit
returns if self is "auto commit".
autocommit=
sets "auto commit".