diff --git a/src/dbgeography.cpp b/src/dbgeography.cpp
index 3ab1d46..67d28b8 100644
--- a/src/dbgeography.cpp
+++ b/src/dbgeography.cpp
@@ -1,3 +1,23 @@
+/**************************************************************************
+**
+** This file is part of Nut project.
+** https://github.com/HamedMasafi/Nut
+**
+** Nut is free software: you can redistribute it and/or modify
+** it under the terms of the GNU Lesser General Public License as published by
+** the Free Software Foundation, either version 3 of the License, or
+** (at your option) any later version.
+**
+** Nut 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 Lesser General Public License for more details.
+**
+** You should have received a copy of the GNU Lesser General Public License
+** along with Nut.  If not, see <http://www.gnu.org/licenses/>.
+**
+**************************************************************************/
+
 #include "dbgeography.h"
 
 NUT_BEGIN_NAMESPACE
diff --git a/src/dbgeography.h b/src/dbgeography.h
index 37c48a3..6cc9160 100644
--- a/src/dbgeography.h
+++ b/src/dbgeography.h
@@ -1,3 +1,23 @@
+/**************************************************************************
+**
+** This file is part of Nut project.
+** https://github.com/HamedMasafi/Nut
+**
+** Nut is free software: you can redistribute it and/or modify
+** it under the terms of the GNU Lesser General Public License as published by
+** the Free Software Foundation, either version 3 of the License, or
+** (at your option) any later version.
+**
+** Nut 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 Lesser General Public License for more details.
+**
+** You should have received a copy of the GNU Lesser General Public License
+** along with Nut.  If not, see <http://www.gnu.org/licenses/>.
+**
+**************************************************************************/
+
 #ifndef DBGEOGRAPHY_H
 #define DBGEOGRAPHY_H
 
diff --git a/src/query.h b/src/query.h
index 38e25a3..cbeb6b9 100644
--- a/src/query.h
+++ b/src/query.h
@@ -51,18 +51,6 @@ public:
 
     ~Query();
 
-    T *first();
-
-    int count();
-
-    QList<T *> toList(int count = -1);
-
-    template<typename F>
-    QList<F> select(const FieldPhrase<F> f);
-    QVariant max(FieldPhrase<int> &f);
-    QVariant min(FieldPhrase<int> &f);
-    QVariant average(FieldPhrase<int> &f);
-
     Query<T> *join(const QString &tableName);
     Query<T> *setWhere(WherePhrase where);
 
@@ -71,12 +59,22 @@ public:
         return this;
     }
 
-//    Query<T> *setWhere(const QString &where);
     Query<T> *orderBy(QString fieldName, QString type);
     Query<T> *orderBy(WherePhrase phrase);
 
+    int count();
+    QVariant max(FieldPhrase<int> &f);
+    QVariant min(FieldPhrase<int> &f);
+    QVariant average(FieldPhrase<int> &f);
+    T *first();
+    QList<T *> toList(int count = -1);
+    template<typename F>
+    QList<F> select(const FieldPhrase<F> f);
+
     int update(WherePhrase phrase);
     int remove();
+
+    QString sqlCommand() const;
 };
 
 template <typename T>
@@ -93,7 +91,7 @@ Q_OUTOFLINE_TEMPLATE Query<T>::Query(Database *database, TableSetBase *tableSet,
     d->database = database;
     d->tableSet = tableSet;
     d->tableName = //TableModel::findByClassName(T::staticMetaObject.className())->name();
-                d->database->model().modelByClass(T::staticMetaObject.className())->name();
+            d->database->model().modelByClass(T::staticMetaObject.className())->name();
 }
 
 template<class T>
@@ -112,15 +110,16 @@ Q_OUTOFLINE_TEMPLATE QList<T *> Query<T>::toList(int count)
     d->select = "*";
 
 //    QSqlQuery q = d->database->exec(d->database->sqlGenertor()->selectCommand(d->wheres, d->orders, d->tableName, d->joinClassName));
-    QString sql = d->database->sqlGenertor()->selectCommand(
-                    SqlGeneratorBase::SelectAll,
-                    "",
-                    d->wheres,
-                    d->orderPhrases,
-                    d->tableName,
-                    d->joinClassName);
+    d->sql = d->database->sqlGenertor()->selectCommand(
+                SqlGeneratorBase::SelectAll,
+                "",
+                d->wheres,
+                d->orderPhrases,
+                d->tableName,
+                d->joinClassName);
 
-    QSqlQuery q = d->database->exec(sql);
+//    qDebug() << sql;
+    QSqlQuery q = d->database->exec(d->sql);
 
 //    QString pk = TableModel::findByName(d->tableName)->primaryKey();
     QString pk = d->database->model().model(d->tableName)->primaryKey();
@@ -202,14 +201,14 @@ Q_OUTOFLINE_TEMPLATE QList<F> Query<T>::select(const FieldPhrase<F> f)
 {
     Q_D(Query);
     QList<F> ret;
-    QString sql = d->database->sqlGenertor()->selectCommand(
+    d->sql = d->database->sqlGenertor()->selectCommand(
                     SqlGeneratorBase::SignleField,
                     f.data()->text,
                     d->wheres,
                     d->orderPhrases,
                     d->tableName,
                     d->joinClassName);
-    QSqlQuery q = d->database->exec(sql);
+    QSqlQuery q = d->database->exec(d->sql);
 
     while (q.next()) {
         QVariant v = q.value(f.data()->text);
@@ -238,7 +237,8 @@ Q_OUTOFLINE_TEMPLATE int Query<T>::count()
     Q_D(Query);
 
     d->select = "COUNT(*)";
-    QSqlQuery q = d->database->exec(d->database->sqlGenertor()->selectCommand("COUNT(*)", d->wheres, d->orders, d->tableName, d->joinClassName));
+    d->sql = d->database->sqlGenertor()->selectCommand("COUNT(*)", d->wheres, d->orders, d->tableName, d->joinClassName);
+    QSqlQuery q = d->database->exec(d->sql);
 
     if(q.next())
         return q.value(0).toInt();
@@ -249,7 +249,8 @@ template<class T>
 Q_OUTOFLINE_TEMPLATE QVariant Query<T>::max(FieldPhrase<int> &f){
     Q_D(Query);
 
-    QSqlQuery q = d->database->exec(d->database->sqlGenertor()->selectCommand("MAX(" + f.data()->text + ")", d->wheres, d->orders, d->tableName, d->joinClassName));
+    d->sql = d->database->sqlGenertor()->selectCommand("MAX(" + f.data()->text + ")", d->wheres, d->orders, d->tableName, d->joinClassName);
+    QSqlQuery q = d->database->exec(d->sql);
 
     if(q.next())
         return q.value(0).toInt();
@@ -260,7 +261,8 @@ template<class T>
 Q_OUTOFLINE_TEMPLATE QVariant Query<T>::min(FieldPhrase<int> &f){
     Q_D(Query);
 
-    QSqlQuery q = d->database->exec(d->database->sqlGenertor()->selectCommand("MIN(" + f.data()->text + ")", d->wheres, d->orders, d->tableName, d->joinClassName));
+    d->sql = d->database->sqlGenertor()->selectCommand("MIN(" + f.data()->text + ")", d->wheres, d->orders, d->tableName, d->joinClassName);
+    QSqlQuery q = d->database->exec(d->sql);
 
     if(q.next())
         return q.value(0).toInt();
@@ -272,7 +274,8 @@ Q_OUTOFLINE_TEMPLATE QVariant Query<T>::average(FieldPhrase<int> &f)
 {
     Q_D(Query);
 
-    QSqlQuery q = d->database->exec(d->database->sqlGenertor()->selectCommand("AVG(" + f.data()->text + ")", d->wheres, d->orders, d->tableName, d->joinClassName));
+    d->sql = d->database->sqlGenertor()->selectCommand("AVG(" + f.data()->text + ")", d->wheres, d->orders, d->tableName, d->joinClassName);
+    QSqlQuery q = d->database->exec(d->sql);
 
     if(q.next())
         return q.value(0).toInt();
@@ -316,12 +319,12 @@ Q_OUTOFLINE_TEMPLATE int Query<T>::update(WherePhrase phrase)
 {
     Q_D(Query);
 
-    QString sql = d->database->sqlGenertor()->updateCommand(
+    d->sql = d->database->sqlGenertor()->updateCommand(
                 phrase,
                 d->wheres,
                 d->tableName);
-    QSqlQuery q = d->database->exec(sql);
-qDebug()<<sql;
+    QSqlQuery q = d->database->exec(d->sql);
+
     if (m_autoDelete)
         deleteLater();
     return q.numRowsAffected();
@@ -332,13 +335,23 @@ Q_OUTOFLINE_TEMPLATE int Query<T>::remove()
 {
     Q_D(Query);
 
-    QString sql = d->database->sqlGenertor()->deleteCommand(
+    d->sql = d->database->sqlGenertor()->deleteCommand(
                 d->wheres,
                 d->tableName);
-    QSqlQuery q = d->database->exec(sql);
+    QSqlQuery q = d->database->exec(d->sql);
+
+    if (m_autoDelete)
+        deleteLater();
     return q.numRowsAffected();
 }
 
+template<class T>
+Q_OUTOFLINE_TEMPLATE QString Query<T>::sqlCommand() const
+{
+    Q_D(const Query);
+    return d->sql;
+}
+
 NUT_END_NAMESPACE
 
 #endif // QUERY_H
diff --git a/src/query_p.h b/src/query_p.h
index a6cddb5..f074592 100644
--- a/src/query_p.h
+++ b/src/query_p.h
@@ -40,6 +40,7 @@ public:
     QueryPrivate(QueryBase *parent);
     ~QueryPrivate();
 
+    QString sql;
     QString tableName;
     QString select;
     Database *database;
diff --git a/src/querybase_p.h b/src/querybase_p.h
index 762a928..087c714 100644
--- a/src/querybase_p.h
+++ b/src/querybase_p.h
@@ -1,3 +1,23 @@
+/**************************************************************************
+**
+** This file is part of Nut project.
+** https://github.com/HamedMasafi/Nut
+**
+** Nut is free software: you can redistribute it and/or modify
+** it under the terms of the GNU Lesser General Public License as published by
+** the Free Software Foundation, either version 3 of the License, or
+** (at your option) any later version.
+**
+** Nut 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 Lesser General Public License for more details.
+**
+** You should have received a copy of the GNU Lesser General Public License
+** along with Nut.  If not, see <http://www.gnu.org/licenses/>.
+**
+**************************************************************************/
+
 #ifndef QUERYBASE_H
 #define QUERYBASE_H
 
diff --git a/src/tableset.cpp b/src/tableset.cpp
index b80f27a..3bcce89 100644
--- a/src/tableset.cpp
+++ b/src/tableset.cpp
@@ -1,21 +1,21 @@
-///**************************************************************************
-//**
-//** This file is part of Nut project.
-//** https://github.com/HamedMasafi/Nut
-//**
-//** Nut is free software: you can redistribute it and/or modify
-//** it under the terms of the GNU Lesser General Public License as published by
-//** the Free Software Foundation, either version 3 of the License, or
-//** (at your option) any later version.
-//**
-//** Nut 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 Lesser General Public License for more details.
-//**
-//** You should have received a copy of the GNU Lesser General Public License
-//** along with Nut.  If not, see <http://www.gnu.org/licenses/>.
-//**
-//**************************************************************************/
+/**************************************************************************
+**
+** This file is part of Nut project.
+** https://github.com/HamedMasafi/Nut
+**
+** Nut is free software: you can redistribute it and/or modify
+** it under the terms of the GNU Lesser General Public License as published by
+** the Free Software Foundation, either version 3 of the License, or
+** (at your option) any later version.
+**
+** Nut 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 Lesser General Public License for more details.
+**
+** You should have received a copy of the GNU Lesser General Public License
+** along with Nut.  If not, see <http://www.gnu.org/licenses/>.
+**
+**************************************************************************/
 
 #include "tableset.h"
diff --git a/src/wherephrase.h b/src/wherephrase.h
index 19fa9b9..5b9a8fb 100644
--- a/src/wherephrase.h
+++ b/src/wherephrase.h
@@ -392,7 +392,7 @@ public:
     }
 };
 
-#define SPECIALIZATION_NUMERIC(type)                                                             \
+#define SPECIALIZATION_NUMERIC(type)                                           \
     template<>                                                                 \
     class FieldPhrase<type>: public NumericFieldPhrase{                        \
     public:                                                                    \
@@ -402,18 +402,25 @@ public:
         {                                                                      \
             return WherePhrase(this, PhraseData::Set, (WherePhrase *)&other);  \
         }                                                                      \
-        WherePhrase in(QList<type> list)                                      \
+        WherePhrase in(QList<type> list)                                       \
         {                                                                      \
             QVariantList vlist;                                                \
-            foreach (type t, list)                                                \
+            foreach (type t, list)                                             \
                 vlist.append(QVariant::fromValue(t));                          \
             return WherePhrase(this, PhraseData::In, vlist);                   \
         }                                                                      \
     };
 
+SPECIALIZATION_NUMERIC(qint8)
 SPECIALIZATION_NUMERIC(qint16)
 SPECIALIZATION_NUMERIC(qint32)
 SPECIALIZATION_NUMERIC(qint64)
+
+SPECIALIZATION_NUMERIC(quint8)
+SPECIALIZATION_NUMERIC(quint16)
+SPECIALIZATION_NUMERIC(quint32)
+SPECIALIZATION_NUMERIC(quint64)
+
 SPECIALIZATION_NUMERIC(qreal)