If you like Oracle tuning, see the book ' Oracle Tuning: The. Run a SQL Server Select statement from the Oracle installation using the database link. Create a database link on the local Oracle installation that accesses the heterogeneous connection, which, in turn, connect to SQL Server. SQL>INSERT INTO (1000000,1,'test','test',1,1,'PG') Reload the listener on local Oracle database. Below is a simple example of this in action, connecting to a MySQL database using the new sakila sample database: SQL> COUNT(*) FROM DESC Null? Type The user name and password should be valid within MySQL so that it can connect from the Oracle host. To set up the database link: CREATE DATABASE LINK mysqlĬONNECT TO " my_user" IDENTIFIED BY " my_password" Reload your Oracle listener ( lsnrctl reload) and then log onto to the Oracle database. Starting with Oracle version 11.2.0.3, database session information now reports additional information for those sessions involving database links. Configure tnsname.ora & listener.ora file in. Create initMYSQL.ora file in Oracle Server5. Edit odbc.ini file & Test DSN’s connectivity in Oracle Server4.
#Oracle database link install#
Install MySql ODBC Drivers in Oracle Server3. Below are the high-level steps we will follow to set up dblink.1.
#Oracle database link how to#
(ADDRESS=(PROTOCOL=tcp)(HOST=localhost)(PORT=1521)) A database link is a one-way connection between two databases. In this blog post, we will see How to create a database link from Oracle to MySQL via ODBC. (ORACLE_HOME = oracle/product/92) /* Your $ORACLE_HOME */Īdd the following to the tnsnames.ora file: MYSQL = In this file, add the following options: /* Replace "MySQL" below with your DSN */Įdit the server's listener.ora file ( ORACLE_HOME/network/admin) to add the following: (SID_DESC = Depending on your programming environment, you might enter. SQL is the most common standardized language used to access databases. The SQL part of MySQL stands for Structured Query Language. Once this is complete, create a file in $ORACLE_HOME/hs/admin called initMySQL.ora. MySQL, the most popular Open Source SQL database management system, is developed, distributed, and supported by Oracle Corporation.
#Oracle database link driver#
See the external resources links in the margin for the MyODBC driver and for information on how to configure ODBC properly. Configure an ODBC DSN (Data Source Name) for the MySQL server to which you would like to connect. It then queries the BOOKSHELF table in that account and returns the data to the user who initiated the query. This allows you to use database links within Oracle to connect to non-Oracle databases, such as MySQL, via ODBC.įirst install the MyODBC driver on the server which is running Oracle. When the database link in the preceding query is used, Oracle will log into the database specified by the database link, using the username and password provided by the link. It is possible to connect Oracle to MySQL using a feature within Oracle known as Heterogeneous Services.
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