| Column Name | Type | Nullable | Description |
|---|---|---|---|
| PatchGUID | unique-identifier | No | Uniquely identifies the patch |
| PatchClassification | string | No | The classification of the patch |
| PatchProducts | text | No | Identifies the applications the patch is applied to |
| PublicationState | string | No | The publication state of the patch |
| MSRCSeverity | string | No | The severity of the patch according to the Microsoft Security Response Center |
| KBArticleNumber | string | Yes | The Knowledge Base article the patch relates to |
| PatchReleaseDate | datetime | Yes | The date and time the patch was released |
| PatchClassificationDate | datetime | Yes | The date and time the patch was classified |
| iscurrent | character | Yes | Not used |