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update

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This commit is contained in:
28810
2018-12-18 20:54:30 +08:00
parent 429fc99d1b
commit 357494a28f
7 changed files with 256 additions and 13 deletions
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10
Docs/update.md
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@ -32,8 +32,10 @@ class Topic {
public DateTime CreateTime { get; set; }
}
var mysql = new MySql("Data Source=127.0.0.1;Port=3306;User ID=root;Password=root;Initial Catalog=cccddd;Charset=utf8;SslMode=none;Max pool size=3");
IUpdate<Topic> update => mysql.Update<Topic>();
IFreeSql fsql = new FreeSql.FreeSqlBuilder()
.UseConnectionString(FreeSql.DataType.MySql, "Data Source=127.0.0.1;Port=3306;User ID=root;Password=root;Initial Catalog=cccddd;Charset=utf8;SslMode=none;Max pool size=10")
.Build();
IUpdate<Topic> update => fsql.Update<Topic>();
```
### 动态条件
@ -50,13 +52,13 @@ dywhere 支持
### 更新指定列
```csharp
var t1 = mysql.Update<Topic>(1).Set(a => a.CreateTime, DateTime.Now).ToSql();
var t1 = fsql.Update<Topic>(1).Set(a => a.CreateTime, DateTime.Now).ToSql();
//UPDATE `tb_topic` SET `CreateTime` = '2018-12-08 00:04:59' WHERE (`Id` = 1)
```
### 更新指定列，累加
```csharp
var t2 = mysql.Update<Topic>(1).Set(a => a.Clicks + 1).ToSql();
var t2 = fsql.Update<Topic>(1).Set(a => a.Clicks + 1).ToSql();
//UPDATE `tb_topic` SET `Clicks` = ifnull(`Clicks`,0) + 1 WHERE (`Id` = 1)
```