Sql Native Client [work] | TRUSTED ⟶ |

| Problem | Likely fix | |--------|-------------| | “SQL Server Native Client not found” | Install from Microsoft’s 2012 redistributable package | | Login timeout | Check firewall, named pipes/TCP settings | | MARS not working | Ensure MARS_Connection=yes and driver v11 | | Encryption error | Set Encrypt=no (temporary) or install certificate | | App crash on Windows 10/11 | Migrate to modern driver – SNAC is unsupported |

The primary purpose of SQL Native Client was to consolidate and specialize. It combined the SQL OLE DB provider and the SQL ODBC driver into a single, native dynamic link library (DLL). By doing so, it stripped away the abstraction layers that slowed down general-purpose drivers. SNAC was "native" in the sense that it communicated directly with the SQL Server Tabular Data Stream (TDS) protocol, allowing it to take full advantage of SQL Server's specific features without the overhead of generic data translation. This resulted in faster performance and reduced complexity for developers building applications strictly for the SQL Server environment. sql native client

Note: .NET developers today should use (not SNAC). | Problem | Likely fix | |--------|-------------| |

Running multiple queries on a single connection simultaneously. SNAC was "native" in the sense that it

| Version | SQL Server support | Notes | |--------|------------------|-------| | SQL Native Client 2005 | SQL 2005 | Original release | | SQL Native Client 2008 | SQL 2008 | Added datetime2, FILESTREAM, sparse columns | | SQL Native Client 2012 (v11) | SQL 2012+ | Last major version. Also known as sqlncli11 |