# AdoNetGrainStorageOptions.DEFAULT_ADONET_INVARIANT

[Type overview](/orleans/docs/api/csharp/microsoft.orleans.persistence.adonet/orleans.configuration.adonetgrainstorageoptions/) | [Fields](/orleans/docs/api/csharp/microsoft.orleans.persistence.adonet/orleans.configuration.adonetgrainstorageoptions/fields/)

[Source](https://github.com/dotnet/orleans/blob/e4e752cedecc2976811db49802c7a999b1f1c704/src/AdoNet/Orleans.Persistence.AdoNet/Options/AdoNetGrainStorageOptions.cs)

```csharp
public const string DEFAULT_ADONET_INVARIANT
```

The default ADO.NET invariant used for storage if none is given.