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| Package Name | File Size | Description | |--------------|-----------|-------------| | (Recommended) | ~650 MB | Full client including SQL Plus, OCI, ODBC, OLE DB, .NET provider, and networking tools. | | Runtime | ~270 MB | Minimal client for running applications. No admin tools like SQL Plus. | | Instant Client | Separate download page | Lightweight set of libraries – good for custom apps but not for full administration. |

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Remember: the client is for development, testing, and production use – you only need a license for the database server itself.