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# PDO_OCI DSN

(no version information, might be only in CVS)

PDO_OCI DSN -- Connecting to Oracle databases

## Description

The PDO_OCI Data Source Name (DSN) is composed of the following elements:

DSN prefix

  The DSN prefix is `oci:`.

`dbname` (Oracle Instant Client)

  The URI for the Oracle Instant Client connection takes the form of `dbname=//`hostname`:`port-number`/`database``. If you are connecting to a database defined in `tnsnames.ora`, use only the name of the database: `dbname=`database``.

`charset`

  The client-side character set for the current environment handle.

## Examples

Example 1. PDO_OCI DSN examples

The following examples show a PDO_OCI DSN for connecting to Oracle databases:

    // Connect to a database defined in tnsnames.ora
    oci:dbname=mydb

    // Connect using the Oracle Instant Client
    oci:dbname=//localhost:1521/mydb

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