# EnumerateDatabases()

> Enumerate search databases.

## Definition

* **Type:** Method
* **Namespace:** [UnityEditor.Search](/engine/6000.7/script-reference/unityeditor/search.md)
* **Assembly:** UnityEditor

```csharp
public static IEnumerable<ISearchDatabase> EnumerateDatabases()
```

### Returns

| Type                                                                                                             | Description                 |
| ---------------------------------------------------------------------------------------------------------------- | --------------------------- |
| [IEnumerable\<ISearchDatabase>](https://learn.microsoft.com/dotnet/api/system.collections.generic.ienumerable-1) | Search database interfaces. |

### Remarks

Most of the search databases are asset and scene indexes.

### Examples

```csharp
static string EnsureDecalPropertyIndexing()
{
    var materialDb = SearchService.EnumerateDatabases().FirstOrDefault(IsIndexingMaterialProperties);
    if (materialDb != null)
        return materialDb.name;

    if (!EditorUtility.DisplayDialog("Create decal material index",
        "Your project does not contain an index with decal material properties." +
        "\n\n" +
        "Do you want to create one now?", "Yes", "No"))
        return null;

    var dbName = "Decals";
    SearchService.CreateIndex(dbName,
        IndexingOptions.Properties | IndexingOptions.Dependencies |
        IndexingOptions.Types | IndexingOptions.Keep,
        roots: null,
        includes: new string[] { ".mat" },
        excludes: null,
        (name, path, finished) =>
        {
            Debug.Log($"Material index {name} created at {path}");
            finished();
        });
    return dbName;
}

static bool IsIndexingMaterialProperties(ISearchDatabase db)
{
    if (string.Equals(db.name, "Materials", StringComparison.OrdinalIgnoreCase))
        return true;
    return (db.indexingOptions & IndexingOptions.Properties) == IndexingOptions.Properties
        && (db.includePatterns.Count == 0 || db.includePatterns.Contains(".mat"));
}
```