트렌젝션 작업 추가

Server/SQL/SQL.cs

@@ -1,4 +1,5 @@
 using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Storage;
 using Npgsql.EntityFrameworkCore.PostgreSQL;
 using Server.System;
 
@@ -56,5 +57,10 @@ namespace Server.SQL
         //{
         //    return table.SingleOrDefault(data => data.name == name);
         //}
+
+        /// <summary>
+        /// 특정 상황에 트렌젝션 롤백을 해야할때 사용
+        /// </summary>
+        public IDbContextTransaction Transaction { get { return Database.BeginTransaction(); } }
     }
 }