diff --git a/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Abstract/QueryableProvider/QueryableProvider.cs b/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Abstract/QueryableProvider/QueryableProvider.cs
index 61bf2d832..5bbd8f352 100644
--- a/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Abstract/QueryableProvider/QueryableProvider.cs
+++ b/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Abstract/QueryableProvider/QueryableProvider.cs
@@ -1373,15 +1373,7 @@ namespace SqlSugar
         }
         protected ISugarQueryable<T> _As(string tableName, string entityName)
         {
-            IsAs = true;
-            OldMappingTableList = this.Context.MappingTables;
-            this.Context.MappingTables = this.Context.Utilities.TranslateCopy(this.Context.MappingTables);
-            if (this.Context.MappingTables.Any(it => it.EntityName == entityName))
-            {
-                this.Context.MappingTables.Add(this.Context.MappingTables.First(it => it.EntityName == entityName).DbTableName, tableName);
-            }
-            this.Context.MappingTables.Add(entityName, tableName);
-            this.QueryableMappingTableList = this.Context.MappingTables;
+            this.QueryBuilder.AsTables.Add(entityName, tableName);
             return this;
         }
         protected void _Filter(string FilterName, bool isDisabledGobalFilter)
@@ -2048,6 +2040,7 @@ namespace SqlSugar
             asyncQueryableBuilder.HavingInfos = this.QueryBuilder.HavingInfos;
             asyncQueryableBuilder.LambdaExpressions.ParameterIndex = this.QueryBuilder.LambdaExpressions.ParameterIndex;
             asyncQueryableBuilder.IgnoreColumns = this.QueryBuilder.IgnoreColumns;
+            asyncQueryableBuilder.AsTables = this.QueryBuilder.AsTables;
         }
         protected int SetCacheTime(int cacheDurationInSeconds)
         {
diff --git a/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Abstract/SqlBuilderProvider/QueryBuilder.cs b/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Abstract/SqlBuilderProvider/QueryBuilder.cs
index 7440185e4..6757cbf97 100644
--- a/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Abstract/SqlBuilderProvider/QueryBuilder.cs
+++ b/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Abstract/SqlBuilderProvider/QueryBuilder.cs
@@ -114,6 +114,7 @@ namespace SqlSugar
         #endregion
 
         #region Sql Template
+        public Dictionary<string, string> AsTables=new Dictionary<string, string>();
         public virtual string SqlTemplate
         {
             get
@@ -357,10 +358,22 @@ namespace SqlSugar
 
         public virtual string ToJoinString(JoinQueryInfo joinInfo)
         {
+            var name = joinInfo.TableName;
+            if (this.AsTables.Any())
+            {
+                if (this.Context.MappingTables != null && this.Context.MappingTables.Any(it => it.DbTableName == name))
+                {
+                    name = this.Context.MappingTables.First(it => it.DbTableName == name).EntityName;
+                }
+                if (this.AsTables.Any(it => it.Key == name))
+                {
+                    name = this.AsTables.First(it => it.Key == name).Value;
+                }
+            }
             return string.Format(
                 this.JoinTemplate,
                 joinInfo.JoinType.ToString() + UtilConstants.Space,
-                Builder.GetTranslationTableName(joinInfo.TableName) + UtilConstants.Space,
+                Builder.GetTranslationTableName(name) + UtilConstants.Space,
                 joinInfo.ShortName + UtilConstants.Space + (TableWithString == SqlWith.Null ? " " : TableWithString),
                 joinInfo.JoinWhere);
         }
@@ -484,7 +497,12 @@ namespace SqlSugar
         {
             get
             {
-                var result = Builder.GetTranslationTableName(EntityName);
+                var name = EntityName;
+                if (this.AsTables.Any(it=>it.Key==EntityName))
+                {
+                    name = this.AsTables.FirstOrDefault(it => it.Key == EntityName).Value;
+                }
+                var result = Builder.GetTranslationTableName(name);
                 result += UtilConstants.Space;
                 if (result.Contains("MergeTable") && result.Trim().EndsWith(" MergeTable"))
                 {
diff --git a/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Abstract/SqlBuilderProvider/SqlBuilderProvider.cs b/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Abstract/SqlBuilderProvider/SqlBuilderProvider.cs
index 922fb8de3..1f0b97416 100644
--- a/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Abstract/SqlBuilderProvider/SqlBuilderProvider.cs
+++ b/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Abstract/SqlBuilderProvider/SqlBuilderProvider.cs
@@ -31,7 +31,7 @@ namespace SqlSugar
         public virtual string GetTranslationTableName(string name)
         {
             Check.ArgumentNullException(name, string.Format(ErrorMessage.ObjNotExist, "Table Name"));
-            if (name.IsContainsIn("(", ")", SqlTranslationLeft)&&name!= "Dictionary`2")
+            if (!name.Contains("<>f__AnonymousType") &&name.IsContainsIn("(", ")", SqlTranslationLeft)&&name!= "Dictionary`2")
             {
                 return name;
             }