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update

2881099
2022-08-01 10:01:16 +08:00
parent 2e199761c0
commit ca1efea583
1 changed files with 14 additions and 0 deletions
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14
嵌套查询.md

@@ -104,6 +104,20 @@ INNER JOIN (
WHERE (a.[rownum] = 1) AND ((a.[Nickname] = N'name03' OR a.[Nickname] = N'name02'))
```
#### 场景4：内存数据嵌套
```c#
var list = new List<User1>();
list.Add(new User1 { Id = Guid.NewGuid() });
list.Add(new User1 { Id = Guid.NewGuid() });
list.Add(new User1 { Id = Guid.NewGuid() });
var listSql2 = fsql.Select<UserGroup>()
.FromQuery(fsql.Select<User1>().WithMemory(list))
.InnerJoin((a, b) => a.Id == b.GroupId)
.ToSql();
```
---
## 子表Exists