mirror of
https://github.com/dotnetcore/FreeSql.git
synced 2026-02-04 15:30:53 +08:00
update
57
Ado.md
Normal file
57
Ado.md
Normal file
@@ -0,0 +1,57 @@
|
||||
Ado 是 IFreeSql 下重要的对象之一,它包括所有对 SQL 操作的封装,类似 SqlHelper。
|
||||
|
||||
## 快速使用
|
||||
|
||||
1、查询 SQL 返回实体
|
||||
|
||||
```c#
|
||||
//返回多条记录
|
||||
List<T> list = fsql.Ado.Query<T>("select * from t1");
|
||||
|
||||
//返回单条记录
|
||||
T item = fsql.Ado.QuerySingle("select * from t1 where id=@id", new { id = 1 });
|
||||
|
||||
//返回多个结果集
|
||||
var result = fsql.Ado.Query<T1, T2>("select * from t1; select * from t2");
|
||||
List<T1> list1 = result.Item1;
|
||||
List<T2> list2 = result.Item2;
|
||||
```
|
||||
|
||||
Ado 下面所有参数 object parms 都可以接受匿名对象,或者字典:
|
||||
|
||||
- new { id = 1, name = "xx" }
|
||||
- new Dictionary\<string, object\> { ["id"] = 1, ["name"] = "xx" }
|
||||
|
||||
2、检测连接
|
||||
|
||||
```c#
|
||||
bool isok = fsql.Ado.ExecuteConnectTest();
|
||||
```
|
||||
|
||||
3、SqlHelper
|
||||
|
||||
fsql.Ado 还提供了 ExecuteReader、ExecuteDataSet、ExecuteDataTable、ExecuteNonQuery、ExecuteScalar 方法,使用起来等传统 SqlHelper 几乎一样。
|
||||
|
||||
---
|
||||
|
||||
4、CommandFluent
|
||||
|
||||
fsql.Ado 重载方法太多的情况下,建议使用 CommandFluent,例如存储过程:
|
||||
|
||||
```c#
|
||||
DbParameter p2 = null;
|
||||
fsql.Ado.CommandFluent("dbo.GetICMaxNum")
|
||||
.CommandType(CommandType.StoredProcedure)
|
||||
.CommandTimeout(60)
|
||||
|
||||
.WithParameter("TableName", "tb1")
|
||||
.WithParameter("FInterID", null, p =>
|
||||
{
|
||||
p2 = p; //Output 参数
|
||||
p.DbType = DbType.Int32;
|
||||
p.Direction = ParameterDirection.Output;
|
||||
})
|
||||
.ExecuteNonQuery(); //提供 SqlHelper 的各种方式执行
|
||||
|
||||
Console.WriteLine(p2.Value);
|
||||
```
|
||||
1
Home.md
1
Home.md
@@ -56,4 +56,5 @@ FreeSql 除了支持基本的增删查改功能外,还支持基于现有数据
|
||||
- [《优化之:延时加载》](%e5%bb%b6%e6%97%b6%e5%8a%a0%e8%bd%bd)
|
||||
- [《优化之:贪婪加载》](%e8%b4%aa%e5%a9%aa%e5%8a%a0%e8%bd%bd)
|
||||
- [《Expression 表达式函数》](%e8%a1%a8%e8%be%be%e5%bc%8f%e5%87%bd%e6%95%b0)
|
||||
- [《Ado》](Ado)
|
||||
- [《AOP》](AOP)
|
||||
@@ -39,6 +39,7 @@
|
||||
* [自定义函数](%e8%a1%a8%e8%be%be%e5%bc%8f%e5%87%bd%e6%95%b0#%E8%87%AA%E5%AE%9A%E4%B9%89%E8%A7%A3%E6%9E%90)
|
||||
* [事务](%e4%ba%8b%e5%8a%a1)
|
||||
* [过滤器](%e8%bf%87%e6%bb%a4%e5%99%a8)
|
||||
- [《Ado》](Ado)
|
||||
* [AOP✨](AOP)
|
||||
* [读写分离](%e8%af%bb%e5%86%99%e5%88%86%e7%a6%bb)
|
||||
* [分表分库](%e5%88%86%e8%a1%a8%e5%88%86%e5%ba%93)
|
||||
|
||||
Reference in New Issue
Block a user