diff --git a/Src/Asp.NetCore2/SqlSugar/Realization/Kdbndp/DbBind/KdbndpBind.cs b/Src/Asp.NetCore2/SqlSugar/Realization/Kdbndp/DbBind/KdbndpBind.cs
index ce815bad8..e870c7d2c 100644
--- a/Src/Asp.NetCore2/SqlSugar/Realization/Kdbndp/DbBind/KdbndpBind.cs
+++ b/Src/Asp.NetCore2/SqlSugar/Realization/Kdbndp/DbBind/KdbndpBind.cs
@@ -106,7 +106,9 @@ namespace SqlSugar
                     new KeyValuePair<string, CSharpDataType>("tsvector",CSharpDataType.@string),
                     new KeyValuePair<string, CSharpDataType>("txid_snapshot",CSharpDataType.@string),
                     new KeyValuePair<string, CSharpDataType>("varcharbyte",CSharpDataType.@string),
+                    new KeyValuePair<string, CSharpDataType>("varcharbyte varying",CSharpDataType.@string),
                     new KeyValuePair<string, CSharpDataType>("bpcharbyte",CSharpDataType.@string),
+                    new KeyValuePair<string, CSharpDataType>("nvarchar",CSharpDataType.@string),
                     new KeyValuePair<string, CSharpDataType>("uuid",CSharpDataType.Guid),
                     new KeyValuePair<string, CSharpDataType>("xml",CSharpDataType.@string),
                     new KeyValuePair<string, CSharpDataType>("json",CSharpDataType.@string),
diff --git a/Src/Asp.NetCore2/SqlSugar/Realization/Kdbndp/DbMaintenance/KdbndpDbMaintenance.cs b/Src/Asp.NetCore2/SqlSugar/Realization/Kdbndp/DbMaintenance/KdbndpDbMaintenance.cs
index b4e1084f9..4d25b394b 100644
--- a/Src/Asp.NetCore2/SqlSugar/Realization/Kdbndp/DbMaintenance/KdbndpDbMaintenance.cs
+++ b/Src/Asp.NetCore2/SqlSugar/Realization/Kdbndp/DbMaintenance/KdbndpDbMaintenance.cs
@@ -57,6 +57,13 @@ namespace SqlSugar
                 else if (IsSqlServerModel()) 
                 {
                     sql = sql.Replace("sys_constraint.conkey[1]", "sys_constraint.conkey{{1}}");
+                    sql = sql.Replace("UPPER(", "pg_catalog.upper(");
+                    sql = sql.Replace("lower(", "pg_catalog.lower(");
+                    sql = sql.Replace("NEXTVAL%", "%nextval%");
+                    sql = sql.Replace("pcolumn.udt_name", "pcolumn.data_type");
+                    sql = sql.Replace("case when pkey.colname = pcolumn.column_name", "case when pkey.colname::text = pcolumn.column_name::text");
+                    sql = sql.Replace("pcolumn on pcolumn.table_name = ptables.tablename", "pcolumn on pcolumn.table_name::text = ptables.tablename::text ");
+                    sql = sql.Replace("pkey on pcolumn.table_name = pkey.relname", "pkey on pcolumn.table_name::text = pkey.relname::text ");
                 }
                 return sql;
             }
@@ -345,6 +352,10 @@ WHERE tgrelid = '" + tableName + "'::regclass");
         private string GetSchema()
         {
             var schema = "public";
+            if (IsSqlServerModel()) 
+            {
+                schema = "dbo";
+            }
             if (System.Text.RegularExpressions.Regex.IsMatch(this.Context.CurrentConnectionConfig.ConnectionString.ToLower(), "searchpath="))
             {
                 var regValue = System.Text.RegularExpressions.Regex.Match(this.Context.CurrentConnectionConfig.ConnectionString.ToLower(), @"searchpath\=(\w+)").Groups[1].Value;
@@ -406,6 +417,10 @@ WHERE tgrelid = '" + tableName + "'::regclass");
         public override bool IsAnyTable(string tableName, bool isCache = true)
         {
             var sql = $"select count(*) from information_schema.tables where UPPER(table_schema)=UPPER('{GetSchema()}') and UPPER(table_type)=UPPER('BASE TABLE') and UPPER(table_name)=UPPER('{tableName.ToUpper(IsUpper)}')";
+            if (IsSqlServerModel()) 
+            {
+                sql = $"select count(*) from information_schema.tables where  pg_catalog.UPPER(table_name)=pg_catalog.UPPER('{tableName.ToUpper(IsUpper)}')";
+            }
             return this.Context.Ado.GetInt(sql)>0;
         }
 
@@ -429,7 +444,14 @@ WHERE tgrelid = '" + tableName + "'::regclass");
             }
             var oldDatabaseName = this.Context.Ado.Connection.Database;
             var connection = this.Context.CurrentConnectionConfig.ConnectionString;
-            connection = connection.Replace(oldDatabaseName, "test");
+            if (this.Context.CurrentConnectionConfig?.MoreSettings?.DatabaseModel == DbType.SqlServer)
+            {
+                connection = connection.Replace(oldDatabaseName, "master");
+            }
+            else
+            {
+                connection = connection.Replace(oldDatabaseName, "test");
+            }
             var newDb = new SqlSugarClient(new ConnectionConfig()
             {
                 DbType = this.Context.CurrentConnectionConfig.DbType,
diff --git a/Src/Asp.NetCore2/SqlSugar/Realization/Oracle/OracleProvider.cs b/Src/Asp.NetCore2/SqlSugar/Realization/Oracle/OracleProvider.cs
index 827cb0f76..81ffc4e16 100644
--- a/Src/Asp.NetCore2/SqlSugar/Realization/Oracle/OracleProvider.cs
+++ b/Src/Asp.NetCore2/SqlSugar/Realization/Oracle/OracleProvider.cs
@@ -105,7 +105,7 @@ namespace SqlSugar
             {
                 sql = " SELECT  'No table' FROM DUAL WHERE 1=2 ";
             }
-            return new KeyValuePair<string, SugarParameter[]>(sql, parameter);
+            return base.ProcessingEventStartingSQL(sql,parameter);
         };
 
 
diff --git a/Src/Asp.NetCore2/SqlSugar/SqlSugar.csproj b/Src/Asp.NetCore2/SqlSugar/SqlSugar.csproj
index 271aa0336..4a41d2b53 100644
--- a/Src/Asp.NetCore2/SqlSugar/SqlSugar.csproj
+++ b/Src/Asp.NetCore2/SqlSugar/SqlSugar.csproj
@@ -27,7 +27,7 @@
     <PackageReference Include="Oracle.ManagedDataAccess.Core" Version="3.21.100" />
     <PackageReference Include="Oscar.Data.SqlClient" Version="4.0.4" />
     <PackageReference Include="SqlSugarCore.Dm" Version="8.3.0" />
-    <PackageReference Include="SqlSugarCore.Kdbndp" Version="9.3.6.412" />
+    <PackageReference Include="SqlSugarCore.Kdbndp" Version="9.3.6.618" />
     <PackageReference Include="System.Data.Common" Version="4.3.0" />
 	<PackageReference Include="Microsoft.Data.SqlClient" Version="2.1.7" />
 	<PackageReference Include="System.Data.OleDb" Version="6.0.0" />