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diff --git a/src/server/database/Database/SQLOperation.h b/src/server/database/Database/SQLOperation.h
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+++ b/src/server/database/Database/SQLOperation.h
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+/*
+ * Copyright (C) 2008-2015 TrinityCore <http://www.trinitycore.org/>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef _SQLOPERATION_H
+#define _SQLOPERATION_H
+
+#include "QueryResult.h"
+
+//- Forward declare (don't include header to prevent circular includes)
+class PreparedStatement;
+
+//- Union that holds element data
+union SQLElementUnion
+{
+    PreparedStatement* stmt;
+    const char* query;
+};
+
+//- Type specifier of our element data
+enum SQLElementDataType
+{
+    SQL_ELEMENT_RAW,
+    SQL_ELEMENT_PREPARED
+};
+
+//- The element
+struct SQLElementData
+{
+    SQLElementUnion element;
+    SQLElementDataType type;
+};
+
+//- For ambigious resultsets
+union SQLResultSetUnion
+{
+    PreparedResultSet* presult;
+    ResultSet* qresult;
+};
+
+class MySQLConnection;
+
+class SQLOperation
+{
+    public:
+        SQLOperation(): m_conn(NULL) { }
+        virtual ~SQLOperation() { }
+
+        virtual int call()
+        {
+            Execute();
+            return 0;
+        }
+        virtual bool Execute() = 0;
+        virtual void SetConnection(MySQLConnection* con) { m_conn = con; }
+
+        MySQLConnection* m_conn;
+
+    private:
+        SQLOperation(SQLOperation const& right) = delete;
+        SQLOperation& operator=(SQLOperation const& right) = delete;
+};
+
+#endif