Add split table demo

Src/Asp.Net/SqlServerTest/Program.cs

@@ -10,7 +10,6 @@ namespace OrmTest
         {
             //Each example will automatically create a table and can run independently.
             //每个例子都会自动建表 并且可以独立运行   
-
             _1_CodeFirst.Init();
             _2_DbFirst.Init();
             _3_EasyQuery.Init();
@@ -23,6 +22,7 @@ namespace OrmTest
             _a1_Delete.Init();
             _a2_Sql.Init();
             _a3_Merge.Init();
+            _a4_SplitTable.Init();
         }
     }
 

Src/Asp.Net/SqlServerTest/SqlServerTest.csproj

@@ -72,6 +72,7 @@
     <Compile Include="9_Update.cs" />
     <Compile Include="a2_Sql.cs" />
     <Compile Include="a3_Merge.cs" />
+    <Compile Include="a4_SplitTable.cs" />
     <Compile Include="UnitTest\Description.cs" />
     <Compile Include="3_EasyQuery.cs" />
     <Compile Include="7_GroupQuery.cs" />

Src/Asp.Net/SqlServerTest/a4_SplitTable.cs

@@ -0,0 +1,61 @@
+using SqlSugar;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace OrmTest
+{
+    internal class _a4_SplitTable
+    {
+        // Method for initialization and testing of split tables
+        // 用于初始化和测试分表的方法
+        public static void Init()
+        {
+            // Obtain a new instance of SqlSugarClient
+            // 获取 SqlSugarClient 的新实例
+            SqlSugarClient db = DbHelper.GetNewDb();
+
+
+            // Entities change the synchronization table structure
+            // 实体变化同步表结构
+            db.CodeFirst.SplitTables().InitTables<SplitTableDemo>();
+
+            // Insert records into the split table and create table
+            // 向分表插入记录并创建表
+            db.Insertable(new SplitTableDemo() { Name = "jack", Time = DateTime.Now }).SplitTable().ExecuteCommand();
+            db.Insertable(new SplitTableDemo() { Name = "jack2", Time = DateTime.Now.AddDays(-11) }).SplitTable().ExecuteCommand();
+
+            // Query records from the split table within a specified date range
+            // 在指定日期范围内从分表查询记录
+            var list = db.Queryable<SplitTableDemo>()
+                .SplitTable(DateTime.Now.Date.AddYears(-1), DateTime.Now)
+                .ToList();
+
+            // Update records from the split table
+            // 从分表更新记录
+            var updateList = list.Take(2).ToList();
+            db.Updateable(updateList).SplitTable().ExecuteCommand();
+        }
+
+        // Entity class representing the split table
+        // 代表分表的实体类
+        [SplitTable(SplitType.Day)] // Specify the split type as "Day"
+        // 指定分表类型为“Day”
+        [SqlSugar.SugarTable("SplitTableDemo_{year}{month}{day}")] // Specify the table name pattern
+        // 指定表名模式
+        public class SplitTableDemo
+        {
+            [SugarColumn(IsPrimaryKey = true)] // Specify primary key
+            // 指定主键
+            public Guid Pk { get; set; }
+            public string Name { get; set; }
+
+            [SugarColumn(IsNullable = true)]
+            [SplitField] // Mark the field as a split field
+            // 将字段标记为分表字段
+            public DateTime Time { get; set; }
+        }
+    }
+}