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2020-08-12 03:38:37 +08:00
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添加或修改.md

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IFreeSql 定义了 InsertOrUpdate 方法实现添加或修改的功能，利用数据库特性：(v1.5.0+)
| Database | Features |
| Database | Features | Database | Features |
| -- | -- |
| MySql | on duplicate key update |
| PostgreSQL | on conflict do update |
| SqlServer | merge into |
| Oracle | merge into |
| Sqlite | replace into |
| 达梦 | merge into |
| 人大金仓 | on conflict do update |
| 神通 | merge into |
| MsAccess | 不支持 |
| MySql | on duplicate key update | 达梦 | merge into |
| PostgreSQL | on conflict do update | 人大金仓 | on conflict do update |
| SqlServer | merge into | 神通 | merge into |
| Oracle | merge into | MsAccess | 不支持 |
| Sqlite | replace into | | |
```csharp
fsql.InsertOrUpdate<T>()