For the complete list of compatible tools and environments visit the Compatibility page. ODBC Driver for Oracle can be used with bit and bit applications on both x32 and x64 platforms, so there is no need to additionally configure the driver, applications or environment.
With our fully Unicode-compliant driver , you can properly retrieve and modify any data in multilingual Oracle databases regardless of their character set: Latin, Cyrillic, Hebrew, Chinese, etc.
Moreover, with our driver you can perform bulk updates to Oracle database by combining SQL statements into batches, thus simplifying and speeding up large data modification to Oracle.
Our ODBC driver is a standalone installation file that doesn't require the user to deploy and configure any additional software such as a database client or a vendor library. Deployment costs are reduced drastically, especially when using the silent install method with an OEM license in large organizations that have hundreds of machines.
It offers advanced connection string parameters and allows any ODBC compliant desktop or web application to connect to Oracle from various environments and platforms.
Every operation with Oracle becomes significantly faster using such capabilities of our driver as local data caching, connection pooling, and much more. Visit our Support page to get instant help from knowledgeable and experienced professionals, a quick resolution of your problems, and nightly builds with hotfixes. It allows an ODBC-compliant application to gain access to one or more data sources. Fast and widely accepted. Reliable and simple to use data connector for Oracle. Compatible with multiple third-party tools.
Download Buy now. This feature will be removed in a future version of Windows. Avoid using this feature in new development work, and plan to modify applications that currently use this feature.
Oracle RDBMS is a multiuser relational database management system that runs with various workstation and minicomputer operating systems. IBM-compatible computers running Microsoft Windows can communicate with Oracle database servers over a network. The following diagram details this application and driver architecture.
The driver is ODBC 2. Oracle Call Interface Programmer's Guide for more information about auto increment. Microsoft Driver Manager and Administrator Files.
Configuring Oracle Net Services. The following configuration steps are for Windows users. Before an application can communicate with the data source, you must provide configuration information. The data source consists of the data that you want to access, its associated operating system, database management system, and network platform used to access the database management system.
To configure or add an Oracle data source:. Follow these steps:. A list of installed drivers is displayed. Click Finish. You can provide the other information requested in the dialog box, or you can leave the fields blank and provide the information when you run the application.
After you have entered the data, click OK or click Return. You can change or delete a data source at any time. The following subtopics explain how to add, change, or delete a data source. To modify an Oracle data source:. To delete an Oracle data source:. The following list is an explanation of the main setup options and fields found on the Oracle ODBC Driver Configuration dialog box shown in the preceding graphic. The tabs found on the lower half of this dialog box are described in subsequent topics.
For example, "odbc-pc". You must enter a DSN. Description - A description or comment about the data in the data source. For example, "Hire date, salary history, and current review of all employees. User ID - The user name of the account on the server used to access the data. For example, "scott". The User ID field is optional. You can provide the other information requested in the dialog box or you can leave the fields blank and provide the information when you run the application.
In addition to the main setup options previously described, there is a Test Connection button available. When you press the Test Connection button, you are prompted for the username and password. Application Options. Oracle Options. Workarounds Options. The following list is an explanation of the fields found on the Application Options tab shown in the preceding graphic:. If Result Sets are not required for your application, Result Set support can be disabled.
There is a small performance penalty for procedures called from packages not containing Result Sets. Result Sets are enabled by default. Query Timeout is enabled by default. Read-Only Connection - Check this box to force read-only access. The default is write access. Enable Closing Cursors - Enables closing cursors. By default, closing cursors is disabled the field is empty , meaning a call to close a cursor does not force the closing of OCI cursors when this behavior is not desired because it can cause an unnecessary performance hit.
Enable closing cursors when you want to force the closing of OCI cursors upon a call to close a cursor. Enable Thread Safety - Thread safety can be disabled for a data source. If thread safety is not required, disabling this option eliminates the overhead of using thread safety. By default, thread safety is enabled. Batch Autocommit Mode - By default, commit is executed only if all statements succeed. Numeric Settings - Allows you to choose the numeric settings that determine the decimal and group separator characters when receiving and returning numeric data that is bound as strings.
The following list is an explanation of the fields found on the Oracle Options tab shown in the preceding graphic:. Fetch Buffer Size - The amount of memory used to determine how many rows of data the ODBC Driver prefetches at a time from an Oracle database regardless of the number of rows the application program requests in a single query.
However, the number of prefetched rows depends on the width and number of columns specified in a single query. Applications that typically fetch fewer than 20 rows of data at a time improve their response time, particularly over slow network connections or to heavily loaded servers.
Setting Fetch Buffer Size too high can make response time worse or consume large amounts of memory. There is a small performance penalty for insert and update statements when LOBs are enabled. Enable Statement Caching - Enables statement caching feature, which increases the performance of parsing the query, in case the user has to parse the same text of query and related parameters multiple times.
The default is disabled. The default cache buffer size is 20 that are used only if statement caching option is enabled. Setting cache buffer size to 0 disables statement caching feature. The default size is 8 KB bytes. The maximum value that can be set is KB bytes. Translate ORA errors - Any migrated third party ODBC application, which is using the SQL Translation Framework feature, expects that errors returned by the server to be in their native database format, then users can enable this option to receive native errors based on the error translation registered with SQL Translation Profile.
Convert Empty String - Any third party ODBC application that is migrated to Oracle Database requires handling empty string data Oracle Database does not handle empty string data in table columns , then they can enable this option so that the application can insert empty string data or retrieve empty string data.
This feature is not implemented for Oracle Database 12 c Release 1 Enable this option to configure additional failover retries. The default is enabled. Retry - The number of times the connection failover is attempted.
The default is 10 attempts. Delay - The number of seconds to delay between failover attempts. The default is 10 seconds. The following list is an explanation of the fields found on the Workarounds Options tab shown in the preceding graphic:.
This support is disabled by default. ODBC calls made by the application to specifically change the value of the attribute after connection time are unaffected by this option and complete their functions as expected.
By default, this option is off. This enhancement improves the performance of Oracle ODBC driver up to 10 times, depending on the prefetch size set by the user. The default value is 0. The maximum value that you can set is 64 KB bytes. The driver installations are available for various operational systems and platforms.
Note that support for x64 versions of Oracle Clients is available for bit Windows. All our products are designed to help you write high-performance, lightweight data access layers, therefore they use advanced data access algorithms and techniques of optimization. Full Specifications.
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