遷移至 SQL Server 2008 前,必須逐項審視現有系統對**已棄用**、**已移除**、**重大變更**、**行為變更**功能的依賴。官方提供 **Upgrade Advisor** 工具自動掃描並生成修正報告,建議先行執行。
| 功能領域 | 棄用 | 移除 | 重大變更 | 行為變更 |
|---|---|---|---|---|
| Database Engine | Deprecated Database Engine Features | Discontinued Database Engine Functionality | Breaking Changes to Database Engine Features | Behavior Changes to Database Engine Features |
| Analysis Services | Deprecated Analysis Services Functionality | Discontinued Analysis Services Functionality | Breaking Changes to Analysis Services Features | Behavior Changes to Analysis Services Features |
| Integration Services | Deprecated Integration Services Features | Discontinued Integration Services Functionality | Breaking Changes to Integration Services Features | Behavior Changes to Integration Services Features |
| Reporting Services | Deprecated Features in SSRS | Discontinued Functionality in SSRS | Breaking Changes in SSRS | Behavior Changes in SSRS |
| Replication | Deprecated Features in Replication | Discontinued Functionality in Replication | Breaking Changes in Replication | Behavior Changes in Replication |
| Full-Text Search | Deprecated Full-Text Search Features | Discontinued Full-Text Search Features | Breaking Changes to Full-Text Search | Behavior Changes to Full-Text Search |
SQL Server 2008 引入大量架構現代化變更(新資料型別、空間資料、Filestream、稀疏欄位、資料壓縮等),兼容性代價不可忽視。**系統盤點 + 工具掃描 + 實測驗證**三步走,方能平滑過渡。