FreeSql.Extensions.ZeroEntity

创建新的ZeroDbCotext实例

IfreeSql 对象 动态表结构描述 是否强制同步表结构 Schema 未验证通过时抛出验证异常

初始化一个 ZeroDbContext 对象，暂不指定任何Schema

同步指定表结构

从自定义中加载（多表） - tableName 以及 Navigates 所依赖表 Schema

从数据库中加载（单表） - 不支持 Navigates - 不支持 Indexes IndexMethod - 暂支持 SqlServer/MySql decimal(10,2)（其他数据库需实现对应 IDbFirst）

【有状态管理】自动 Include 查询

【无状态管理】指定表查询

Type = Update 的时候，获取更新之前的对象

实体变化记录

实体变化事件

举例1：LeftJoin("table1", "id", "user.id") -> LEFT JOIN [table1] b ON b.[id] = a.[id] 举例2：LeftJoin("table1", "id", "user.id", "xid", "user.xid") -> LEFT JOIN [table1] b ON b.[id] = [a].id] AND b.[xid] = a.[xid]

举例1：InnerJoin("table1", "id", "user.id") -> INNER JOIN [table1] b ON b.[id] = a.[id] 举例2：InnerJoin("table1", "id", "user.id", "xid", "user.xid") -> INNER JOIN [table1] b ON b.[id] = [a].id] AND b.[xid] = a.[xid]

举例1：RightJoin("table1", "id", "user.id") -> RIGTH JOIN [table1] b ON b.[id] = a.[id] 举例2：RightJoin("table1", "id", "user.id", "xid", "user.xid") -> RIGTH JOIN [table1] b ON b.[id] = [a].id] AND b.[xid] = a.[xid]

WHERE [Id] IN (1,2,3)

WHERE [field] IN (1,2,3)

WHERE [field] NOT IN (1,2,3)

匿名对象：Where(new { Year = 2017, CategoryId = 198, IsPublished = true }) 字典对象：Where(new Dictionary<string, object> { ["Year"] = 2017, ["CategoryId"] = 198, ["IsPublished"] = true }) WHERE [Year] = 2017 AND [CategoryId] = 198 AND [IsPublished] = 1

WHERE [field] = .. 更全请看重载 Where(string field, string @operator, object value)

WHERE [field] !=、>、>=、<、<=、like、!like、in、!in

WHERE 字段与字段

WHERE exists(select ...)