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update

28810
2020-09-11 12:16:44 +08:00
parent 3023c0b3d9
commit 3a17f8a646
1 changed files with 11 additions and 8 deletions
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19
返回数据.md

@@ -37,18 +37,21 @@ List<匿名类> t6 = fsql.Select<Topic>().ToList(a => new { a.Id, a.Title });
//返回元组 //返回元组
List<(int, string)> t7 = fsql.Select<Topic>().ToList<(int, string)>("id, title"); List<(int, string)> t7 = fsql.Select<Topic>().ToList<(int, string)>("id, title");
//返回SQL字段 //返回导航属性
List<匿名类> t8 = fsql.Select<Topic>().ToList(a => new { List<匿名类> t8 = fsql.Select<Topic>().ToList(a => new {
a.Id, a.Id, a.Title,
a.Title, a.Type //可以直接返回导航属性 Type
a.Type, //可以直接返回导航属性 Type });
//返回SQL字段
List<匿名类> t9 = fsql.Select<Topic>().ToList(a => new {
cstitle = "substr(a.title, 0, 2)", //将 substr(a.title, 0, 2) 作为查询字段 cstitle = "substr(a.title, 0, 2)", //将 substr(a.title, 0, 2) 作为查询字段
csnow = Convert.ToDateTime("now()"), //将 now() 作为查询字段 csnow = Convert.ToDateTime("now()"), //将 now() 作为查询字段
//奇思妙想：怎么查询开窗函数的结果 //奇思妙想：怎么查询开窗函数的结果
}); });
//返回子查询的字段 //返回子查询的字段
List<匿名类> t9 = fsql.Select<Topic>().ToList(a => new { List<匿名类> t10 = fsql.Select<Topic>().ToList(a => new {
a.Id, a.Id,
count = fsql.Select<T2>().Count(), count = fsql.Select<T2>().Count(),
max = fsql.Select<T2>().Max(b => b.Id), max = fsql.Select<T2>().Max(b => b.Id),
@@ -74,9 +77,9 @@ class xxx {
public string Title2 { get; set; } public string Title2 { get; set; }
} }
List<xxx> t10 = fsql.Ado.Query<xxx>("select * from song"); List<xxx> t11 = fsql.Ado.Query<xxx>("select * from song");
List<(int, string ,string)> t11 = fsql.Ado.Query<(int, string, string)>("select * from song"); List<(int, string ,string)> t12 = fsql.Ado.Query<(int, string, string)>("select * from song");
List<dynamic> t12 = fsql.Ado.Query<dynamic>("select * from song"); List<dynamic> t13 = fsql.Ado.Query<dynamic>("select * from song");
``` ```
> 注意：Ado.Query 的实体特性是无效的，比如 [Column(Name = "xxx")] 无效 > 注意：Ado.Query 的实体特性是无效的，比如 [Column(Name = "xxx")] 无效