The opatch utility will take care of patching the Instant Client shared libraries. This information can be retrieved by the following command:. A new version of the libociei. Note that the location of the regenerated Data Shared Library, libociei. In particular, the connection string can be specified in the following formats:. The empty connection string is not supported. Consider that the listener. The connection string can also be stored in the tnsnames. For example, consider that the tnsnames.
If this tnsnames. If tnsnames. However, if the variable is set, then it does not have an impact on the operation of the OCI driver. That is:. Instant Client Light is the short name. Instant Client Light is a significantly smaller version of Instant Client.
This reduces the disk space requirements of the client installation by about 63 MB. This is achieved by the lightweight Data Shared Library, libociicus. The lightweight data shared library supports only a few character sets and error messages that are only in English. Therefore, the name Instant Client Light English.
Table lists the names of the data shared libraries for Instant Client and Instant Client Light English on different platforms. The table also specifies the size of each data shared library in parentheses following the library file name. In Instant Client Light, language can only be American , territory can be any that is supported, and characterset can be any one of the following:.
With Instant Client Light, the error messages obtained are only in English. If this library is found, then the application operates in the Instant Client Light mode. Otherwise, a non-Instant Client mode is assumed.
For Instant Client Light, instead of downloading and expanding the Basic package, download and unzip the Basic Light package. Set the library path environment variable to the directory from step 1. The installation should be done into an empty directory. If you have done a complete client installation by choosing the Admin option, then the Instant Client shared libraries are also installed.
On UNIX, this library, libheteroxa On Windows, this library, heteroxa Only one set of Oracle libraries should be specified in the library path environment variable. That is, if you have multiple directories containing Instant Client libraries, then only one such directory should be specified in the library path environment variable. Instant Client is a deployment feature and should be used for running production applications. For development, a full installation is necessary to access demonstration programs and so on.
Therefore, server-side external procedures cannot operate in the Instant Client mode. Therefore, all files needed to patch Instant Client shared libraries are not available in an Instant Client deployment.
The opatch utility will take care of patching the Instant Client shared libraries. This information can be retrieved by the following command:. A new version of libociei. Note that the location of the regenerated Data Shared Library, libociei. In particular, the connect string can be specified in the following formats:. The empty connect string is not supported. Consider that the listener. The connect string can also be stored in the tnsnames. For example, consider that the tnsnames.
If this tnsnames. OCI Connection Pooling. Transparent Application Failover. OCI Instant Client. About Instant Client Light English. The OCI connection pooling feature is an Oracle-designed extension. The connection pooling provided by the JDBC OCI driver enables applications to have multiple logical connections, all of which are using a small set of physical connections.
Each call on a logical connection is routed on to the physical connection that is available at the given time. The new database connection, though created by a different node, is identical to the original. Overview of Instant Client. Benefits of Instant Client. Usage of Instant Client. The storage space requirement of a JDBC OCI application using the Instant Client is significantly reduced compared to the same application running on a full client-side installation. The Instant Client shared libraries occupy only about one-fourth the disk space used by a full client installation.
The library names mentioned in this table correspond to Oracle Database Release 21c. The number part of library names change with every release to agree with the release. See Also: " Checking the Environment Variables ". The libclntsh. The number of required files and the total disk storage on the Oracle client-side are significantly reduced. There is no loss of functionality or performance for applications deployed with the Instant Client.
The installation process is as follows:. Download and install the Instant Client shared libraries and Oracle JDBC class libraries to a directory, such as instantclient , from the following location. Set the library path environment variable to the directory from Step 1. The Instant Client files should always be installed in an empty directory. If you have done a complete client installation by choosing the Admin option, then the Instant Client shared libraries are also installed.
On UNIX, this library, libheteroxa On Windows, this library, heteroxa
0コメント