Oracle 5.0 Reference Manual page 1789

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ODBCConfig
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odbcinst
In some cases when using unixODBC, you might get this error:
Data source name not found and no default driver specified
If this happens, make sure the
the right
odbc.ini
environment variables like this:
export ODBCINI=/usr/local/etc/odbc.ini
export ODBCSYSINI=/usr/local/etc
20.1.4.6. Connecting Without a Predefined DSN
You can connect to the MySQL server using SQLDriverConnect, by specifying the
field. Here are the connection strings for Connector/ODBC using DSN-Less connections:
For Connector/ODBC 3.51:
ConnectionString = "DRIVER={MySQL ODBC 3.51 Driver};\
If your programming language converts backslash followed by whitespace to a space, it is preferable
to specify the connection string as a single long string, or to use a concatenation of multiple strings that
does not add spaces in between. For example:
ConnectionString = "DRIVER={MySQL ODBC 3.51 Driver};"
Note. On Mac OS X, you might need to specify the full path to the Connector/ODBC driver library.
Refer to Section 20.1.4.2, "Connector/ODBC Connection Parameters"
parameters that can be supplied.
20.1.4.7. ODBC Connection Pooling
Connection pooling enables the ODBC driver to re-use existing connections to a given database from
a pool of connections, instead of opening a new connection each time the database is accessed. By
enabling connection pooling you can improve the overall performance of your application by lowering
the time taken to open a connection to a database in the connection pool.
For more information about connection pooling:
US;q169470.
20.1.4.8. Getting an ODBC Trace File
If you encounter difficulties or problems with Connector/ODBC, start by making a log file from the
and Connector/ODBC. This is called tracing, and is enabled through the ODBC Manager.
Manager
The procedure for this differs for Windows, Mac OS X and Unix.
Configuring Connector/ODBC
Note
If you are using unixODBC, you can use the following tools to set up the DSN:
GUI tool (HOWTO: ODBCConfig)
ODBCINI
file. For example, if your
SERVER=localhost;\
DATABASE=test;\
USER=venu;\
PASSWORD=venu;\
OPTION=3;"
"SERVER=localhost;"
"DATABASE=test;"
"USER=venu;"
"PASSWORD=venu;"
"OPTION=3;"
and environment variables are pointing to
ODBCSYSINI
file is located in /usr/local/etc, set the
odbc.ini
http://support.microsoft.com/default.aspx?scid=kb;EN-
1769
DRIVER
for the list of connection
name
ODBC