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# PDO_OCI DSN

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PDO_OCI DSN — Connecting to Oracle databases

### Opis

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.

### Przykłady

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

Oracle (PDO)
ODBC and DB2 (PDO)
Oracle (PDO)
PHP Manual