diff --git a/SqlServerTest/Demo/DbFirst.cs b/SqlServerTest/Demo/DbFirst.cs
index baffc2946..2c71c0a30 100644
--- a/SqlServerTest/Demo/DbFirst.cs
+++ b/SqlServerTest/Demo/DbFirst.cs
@@ -1,4 +1,5 @@
-using System;
+using SqlSugar;
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;
diff --git a/SqlSugar/Abstract/DbFirstProvider/DbFirstProvider.cs b/SqlSugar/Abstract/DbFirstProvider/DbFirstProvider.cs
index 106a3798d..ec351f9be 100644
--- a/SqlSugar/Abstract/DbFirstProvider/DbFirstProvider.cs
+++ b/SqlSugar/Abstract/DbFirstProvider/DbFirstProvider.cs
@@ -26,6 +26,10 @@ namespace SqlSugar
             this.PropertyDescriptionTemplate = DefaultTemplate.PropertyDescriptionTemplate;
             this.ConstructorTemplate = DefaultTemplate.ConstructorTemplate;
             this.NamespaceTemplate = DefaultTemplate.NamespaceTemplate;
+        }
+
+        public void Init()
+        {
             this.TableInfoList = this.Context.DbMaintenance.GetTableInfoList();
             if (this.Context.DbMaintenance.GetViewInfoList().IsValuable())
             {
diff --git a/SqlSugar/Abstract/DbMaintenanceProvider/DbMaintenanceProvider.cs b/SqlSugar/Abstract/DbMaintenanceProvider/DbMaintenanceProvider.cs
index 18f548eed..c0e5b4719 100644
--- a/SqlSugar/Abstract/DbMaintenanceProvider/DbMaintenanceProvider.cs
+++ b/SqlSugar/Abstract/DbMaintenanceProvider/DbMaintenanceProvider.cs
@@ -88,7 +88,7 @@ namespace SqlSugar
              {
                  var isEnableLogEvent = this.Context.Ado.IsEnableLogEvent;
                  this.Context.Ado.IsEnableLogEvent = false;
-                 var reval = this.Context.Ado.SqlQuery<T>(this.GetColumnInfosByTableNameSql);
+                 var reval = this.Context.Ado.SqlQuery<T>(sql);
                  this.Context.Ado.IsEnableLogEvent = isEnableLogEvent;
                  return reval;
              });
diff --git a/SqlSugar/Interface/IDbFirst.cs b/SqlSugar/Interface/IDbFirst.cs
index cd041322a..f228ce240 100644
--- a/SqlSugar/Interface/IDbFirst.cs
+++ b/SqlSugar/Interface/IDbFirst.cs
@@ -21,5 +21,6 @@ namespace SqlSugar
         List<SchemaInfo> GetSchemaInfoList { get; }
         void CreateClassFile(string directoryPath,  string nameSpace = "Models");
         Dictionary<string, string> ToClassStringList(string nameSpace = "Models");
+        void Init();
     }
 }
diff --git a/SqlSugar/Realization/SqlServer/DbFirst/SqlServerDbFirst.cs b/SqlSugar/Realization/SqlServer/DbFirst/SqlServerDbFirst.cs
index f4c3a3580..dd86e4dbd 100644
--- a/SqlSugar/Realization/SqlServer/DbFirst/SqlServerDbFirst.cs
+++ b/SqlSugar/Realization/SqlServer/DbFirst/SqlServerDbFirst.cs
@@ -5,7 +5,7 @@ using System.Text;
 
 namespace SqlSugar
 {
-    public class SqlServerDbFirst:DbFirstProvider
+    public class SqlServerDbFirst : DbFirstProvider
     {
     }
 }
diff --git a/SqlSugar/SqlSugarClient.cs b/SqlSugar/SqlSugarClient.cs
index 8cd6fcf5b..f225873a3 100644
--- a/SqlSugar/SqlSugarClient.cs
+++ b/SqlSugar/SqlSugarClient.cs
@@ -233,6 +233,7 @@ namespace SqlSugar
                     IDbFirst dbFirst = InstanceFactory.GetDbFirst(this.Context.CurrentConnectionConfig);
                     base._DbFirst = dbFirst;
                     dbFirst.Context = this.Context;
+                    dbFirst.Init();
                 }
                 return base._DbFirst;
             }