diff --git a/src/test/java/com/alibaba/druid/bvt/filter/wall/MySqlWallTest53.java b/src/test/java/com/alibaba/druid/bvt/filter/wall/MySqlWallTest53.java
new file mode 100644
index 0000000000..19daaf9e5d
--- /dev/null
+++ b/src/test/java/com/alibaba/druid/bvt/filter/wall/MySqlWallTest53.java
@@ -0,0 +1,52 @@
+/*
+ * Copyright 1999-2011 Alibaba Group Holding Ltd.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.alibaba.druid.bvt.filter.wall;
+
+import junit.framework.TestCase;
+
+import org.junit.Assert;
+
+import com.alibaba.druid.wall.WallProvider;
+import com.alibaba.druid.wall.spi.MySqlWallProvider;
+
+/**
+ * SQLServerWallTest
+ * 
+ * @author RaymondXiu
+ * @version 1.0, 2012-3-18
+ * @see
+ */
+public class MySqlWallTest53 extends TestCase {
+
+    public void test_true() throws Exception {
+        WallProvider provider = new MySqlWallProvider();
+        provider.getConfig().setLimitZeroAllow(true);
+
+        Assert.assertTrue(provider.checkValid(//
+        "select * from t limit 0,0"));
+
+        Assert.assertEquals(1, provider.getTableStats().size());
+    }
+    
+    public void test_false() throws Exception {
+        WallProvider provider = new MySqlWallProvider();
+        
+        Assert.assertFalse(provider.checkValid(//
+                "select * from t limit 0,0"));
+        
+        Assert.assertEquals(1, provider.getTableStats().size());
+    }
+}
diff --git a/src/test/java/com/alibaba/druid/bvt/filter/wall/MySqlWallTest54.java b/src/test/java/com/alibaba/druid/bvt/filter/wall/MySqlWallTest54.java
new file mode 100644
index 0000000000..9b61c8cf22
--- /dev/null
+++ b/src/test/java/com/alibaba/druid/bvt/filter/wall/MySqlWallTest54.java
@@ -0,0 +1,52 @@
+/*
+ * Copyright 1999-2011 Alibaba Group Holding Ltd.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.alibaba.druid.bvt.filter.wall;
+
+import junit.framework.TestCase;
+
+import org.junit.Assert;
+
+import com.alibaba.druid.wall.WallProvider;
+import com.alibaba.druid.wall.spi.MySqlWallProvider;
+
+/**
+ * SQLServerWallTest
+ * 
+ * @author RaymondXiu
+ * @version 1.0, 2012-3-18
+ * @see
+ */
+public class MySqlWallTest54 extends TestCase {
+
+    public void test_true() throws Exception {
+        WallProvider provider = new MySqlWallProvider();
+        provider.getConfig().setSchemaCheck(false);
+
+        Assert.assertTrue(provider.checkValid(//
+        "select `ENGINE`, `SUPPORT` from information_schema.Engines"));
+
+        Assert.assertEquals(1, provider.getTableStats().size());
+    }
+    
+    public void test_false() throws Exception {
+        WallProvider provider = new MySqlWallProvider();
+        
+        Assert.assertFalse(provider.checkValid(//
+                "select `ENGINE`, `SUPPORT` from information_schema.Engines"));
+        
+        Assert.assertEquals(1, provider.getTableStats().size());
+    }
+}
diff --git a/src/test/java/com/alibaba/druid/bvt/filter/wall/MySqlWallTest55.java b/src/test/java/com/alibaba/druid/bvt/filter/wall/MySqlWallTest55.java
new file mode 100644
index 0000000000..1fd04aec08
--- /dev/null
+++ b/src/test/java/com/alibaba/druid/bvt/filter/wall/MySqlWallTest55.java
@@ -0,0 +1,60 @@
+/*
+ * Copyright 1999-2011 Alibaba Group Holding Ltd.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.alibaba.druid.bvt.filter.wall;
+
+import junit.framework.TestCase;
+
+import org.junit.Assert;
+
+import com.alibaba.druid.wall.WallProvider;
+import com.alibaba.druid.wall.spi.MySqlWallProvider;
+
+/**
+ * SQLServerWallTest
+ * 
+ * @author RaymondXiu
+ * @version 1.0, 2012-3-18
+ * @see
+ */
+public class MySqlWallTest55 extends TestCase {
+
+    public void test_true() throws Exception {
+        WallProvider provider = new MySqlWallProvider();
+
+        Assert.assertTrue(provider.checkValid(//
+        "SELECT USER()"));
+
+        Assert.assertEquals(0, provider.getTableStats().size());
+    }
+    
+    public void test_true_1() throws Exception {
+        WallProvider provider = new MySqlWallProvider();
+        
+        Assert.assertTrue(provider.checkValid(//
+                "SELECT USER() FROM DUAL"));
+        
+        Assert.assertEquals(1, provider.getTableStats().size());
+    }
+    
+    public void test_false() throws Exception {
+        WallProvider provider = new MySqlWallProvider();
+        
+        Assert.assertFalse(provider.checkValid(//
+                "SELECT USER() FROM X"));
+        
+        Assert.assertEquals(1, provider.getTableStats().size());
+    }
+}
diff --git a/src/test/java/com/alibaba/druid/bvt/filter/wall/MySqlWallTest56.java b/src/test/java/com/alibaba/druid/bvt/filter/wall/MySqlWallTest56.java
new file mode 100644
index 0000000000..af9189c063
--- /dev/null
+++ b/src/test/java/com/alibaba/druid/bvt/filter/wall/MySqlWallTest56.java
@@ -0,0 +1,42 @@
+/*
+ * Copyright 1999-2011 Alibaba Group Holding Ltd.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.alibaba.druid.bvt.filter.wall;
+
+import junit.framework.TestCase;
+
+import org.junit.Assert;
+
+import com.alibaba.druid.wall.WallProvider;
+import com.alibaba.druid.wall.spi.MySqlWallProvider;
+
+/**
+ * SQLServerWallTest
+ * 
+ * @author RaymondXiu
+ * @version 1.0, 2012-3-18
+ * @see
+ */
+public class MySqlWallTest56 extends TestCase {
+
+    public void test_true() throws Exception {
+        WallProvider provider = new MySqlWallProvider();
+
+        Assert.assertTrue(provider.checkValid(//
+        "SHOW GRANTS FOR CURRENT_USER()"));
+
+        Assert.assertEquals(0, provider.getTableStats().size());
+    }
+}
diff --git a/src/test/java/com/alibaba/druid/bvt/filter/wall/MySqlWallTest57.java b/src/test/java/com/alibaba/druid/bvt/filter/wall/MySqlWallTest57.java
new file mode 100644
index 0000000000..a55cf2f95f
--- /dev/null
+++ b/src/test/java/com/alibaba/druid/bvt/filter/wall/MySqlWallTest57.java
@@ -0,0 +1,60 @@
+/*
+ * Copyright 1999-2011 Alibaba Group Holding Ltd.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.alibaba.druid.bvt.filter.wall;
+
+import junit.framework.TestCase;
+
+import org.junit.Assert;
+
+import com.alibaba.druid.wall.WallProvider;
+import com.alibaba.druid.wall.spi.MySqlWallProvider;
+
+/**
+ * SQLServerWallTest
+ * 
+ * @author RaymondXiu
+ * @version 1.0, 2012-3-18
+ * @see
+ */
+public class MySqlWallTest57 extends TestCase {
+
+    public void test_true() throws Exception {
+        WallProvider provider = new MySqlWallProvider();
+
+        Assert.assertTrue(provider.checkValid(//
+        "SELECT @@version"));
+
+        Assert.assertEquals(0, provider.getTableStats().size());
+    }
+    
+    public void test_true_1() throws Exception {
+        WallProvider provider = new MySqlWallProvider();
+        
+        Assert.assertTrue(provider.checkValid(//
+                "SELECT @@version FROM DUAL"));
+        
+        Assert.assertEquals(1, provider.getTableStats().size());
+    }
+    
+    public void test_false() throws Exception {
+        WallProvider provider = new MySqlWallProvider();
+        
+        Assert.assertFalse(provider.checkValid(//
+                "SELECT @@version FROM X"));
+        
+        Assert.assertEquals(1, provider.getTableStats().size());
+    }
+}
diff --git a/src/test/java/com/alibaba/druid/bvt/filter/wall/MySqlWallTest58.java b/src/test/java/com/alibaba/druid/bvt/filter/wall/MySqlWallTest58.java
new file mode 100644
index 0000000000..bddea02576
--- /dev/null
+++ b/src/test/java/com/alibaba/druid/bvt/filter/wall/MySqlWallTest58.java
@@ -0,0 +1,46 @@
+/*
+ * Copyright 1999-2011 Alibaba Group Holding Ltd.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.alibaba.druid.bvt.filter.wall;
+
+import junit.framework.TestCase;
+
+import org.junit.Assert;
+
+import com.alibaba.druid.wall.WallProvider;
+import com.alibaba.druid.wall.spi.MySqlWallProvider;
+
+/**
+ * SQLServerWallTest
+ * 
+ * @author RaymondXiu
+ * @version 1.0, 2012-3-18
+ * @see
+ */
+public class MySqlWallTest58 extends TestCase {
+
+    public void test_true() throws Exception {
+        WallProvider provider = new MySqlWallProvider();
+        provider.getConfig().setSchemaCheck(false);
+
+        Assert.assertTrue(provider.checkValid(//
+        "SELECT COUNT(*) FROM information_schema.processlist " + //
+                "WHERE user <> 'replication' AND id <> CONNECTION_ID() " + //
+                "AND time > 60 AND command <> 'Sleep'"));
+
+        Assert.assertEquals(1, provider.getTableStats().size());
+    }
+
+}