Native Error Numbers
Applies to: 
SQL Server
Azure SQL Database
Azure SQL Managed Instance
Azure Synapse Analytics
Analytics Platform System (PDW)
For errors that occur in the data source (returned by SQL Server), the SQL Server Native Client ODBC driver returns the native error number returned to it by SQL Server. For errors detected by the driver, the SQL Server Native Client ODBC driver returns a native error number of 0. For more information about a list of native error numbers, see the error column of the sysmessages system table in the master database in SQL Server.
For information about the state error codes, see SQLSTATE (ODBC Error Codes). For errors returned by the Net-Library, the native error number is from the underlying network software.
See Also
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