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This command is not supported by this provider.
The syntax cannot be validated, though the query may still run correctly. A number of situations can cause this, including:
The provider for the current connection may not recognize some of the syntax in the query. For example, not all database management systems recognize the asterisk (*) as correct syntax for a select all statement.
There may be a semantic problem. For example if one of the referenced objects can’t be accessed the query cannot be validated.