IF COL_LENGTH(N'dbo.StoryMemoryImportPreferences', N'PrimaryAgeGroup') IS NULL
    ALTER TABLE dbo.StoryMemoryImportPreferences ADD PrimaryAgeGroup nvarchar(120) NULL;
GO

IF COL_LENGTH(N'dbo.StoryMemoryImportPreferences', N'StoryEra') IS NULL
    ALTER TABLE dbo.StoryMemoryImportPreferences ADD StoryEra nvarchar(120) NULL;
GO

IF COL_LENGTH(N'dbo.StoryMemoryImportPreferences', N'StoryLocation') IS NULL
    ALTER TABLE dbo.StoryMemoryImportPreferences ADD StoryLocation nvarchar(160) NULL;
GO