improve sql parser, support sql server

src/test/java/com/alibaba/druid/bvt/filter/wall/SQLServerWallPermitFunctionTest.java

@@ -58,20 +58,20 @@ public class SQLServerWallPermitFunctionTest extends TestCase {
     }
 
     public final void test_sp_addsrvrolemenber() throws Exception {
-        Assert.assertFalse(WallUtils.isValidateSqlServer("EXEC master.dbo.sp_addsrvrolemember ‘user’, ‘sysadmin"));
+        Assert.assertTrue(WallUtils.isValidateSqlServer("EXEC master.dbo.sp_addsrvrolemember ‘user’, ‘sysadmin"));
     }
 
     public final void test_sp_helpdb() throws Exception {
-        Assert.assertFalse(WallUtils.isValidateSqlServer("EXEC sp_helpdb master"));
-        Assert.assertFalse(WallUtils.isValidateSqlServer("EXEC sp_helpdb pubs"));
+        Assert.assertTrue(WallUtils.isValidateSqlServer("EXEC sp_helpdb master"));
+        Assert.assertTrue(WallUtils.isValidateSqlServer("EXEC sp_helpdb pubs"));
     }
 
     public final void test_sp_droplogin() throws Exception {
-        Assert.assertFalse(WallUtils.isValidateSqlServer("EXEC sp_droplogin ‘user’;"));
+        Assert.assertTrue(WallUtils.isValidateSqlServer("EXEC sp_droplogin ‘user’;"));
     }
 
     public final void test_sp_addlogin() throws Exception {
-        Assert.assertFalse(WallUtils.isValidateSqlServer("EXEC sp_addlogin ‘user’, ‘pass’; "));
+        Assert.assertTrue(WallUtils.isValidateSqlServer("EXEC sp_addlogin ‘user’, ‘pass’; "));
     }
 
     public final void test_db_name() throws Exception {

src/test/java/com/alibaba/druid/bvt/filter/wall/SQLServerWallTest_9.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 java.util.Collections;
+
+import junit.framework.TestCase;
+
+import org.junit.Assert;
+
+import com.alibaba.druid.sql.visitor.SQLEvalVisitorUtils;
+import com.alibaba.druid.util.JdbcConstants;
+import com.alibaba.druid.wall.WallProvider;
+import com.alibaba.druid.wall.spi.SQLServerWallProvider;
+
+/**
+ * SQLServerWallTest
+ * 
+ * @author RaymondXiu
+ * @version 1.0, 2012-3-18
+ * @see
+ */
+public class SQLServerWallTest_9 extends TestCase {
+
+    public void test_true() throws Exception {
+        WallProvider provider = new SQLServerWallProvider();
+
+        String sql = "SELECT s.id FROM snapshots s " //
+                     + "WHERE s.scope='PRJ'"//
+                     + " and s.qualifier IN ('TRK', 'BRC')"//
+                     + " AND status='P'" //
+                     + " AND islast=0" //
+                     + " AND NOT EXISTS (select m.id from project_measures m WHERE m.snapshot_id=s.id)";
+        
+        Assert.assertTrue(provider.checkValid(sql));
+
+    }
+
+}

src/test/java/com/alibaba/druid/bvt/sql/sqlserver/SQLServerAlterTableTest_1.java

@@ -0,0 +1,53 @@
+/*
+ * 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.sql.sqlserver;
+
+import junit.framework.TestCase;
+
+import org.junit.Assert;
+
+import com.alibaba.druid.sql.SQLUtils;
+import com.alibaba.druid.sql.ast.SQLStatement;
+import com.alibaba.druid.sql.dialect.sqlserver.parser.SQLServerStatementParser;
+import com.alibaba.druid.sql.dialect.sqlserver.visitor.SQLServerSchemaStatVisitor;
+import com.alibaba.druid.sql.parser.Token;
+import com.alibaba.druid.util.JdbcConstants;
+
+public class SQLServerAlterTableTest_1 extends TestCase {
+
+    public void test_alter_first() throws Exception {
+        String sql = "ALTER TABLE dependencies ALTER COLUMN id bigint";
+        SQLServerStatementParser parser = new SQLServerStatementParser(sql);
+        SQLStatement stmt = parser.parseStatementList().get(0);
+        parser.match(Token.EOF);
+
+        SQLServerSchemaStatVisitor visitor = new SQLServerSchemaStatVisitor();
+        stmt.accept(visitor);
+
+        System.out.println("Tables : " + visitor.getTables());
+        System.out.println("fields : " + visitor.getColumns());
+        System.out.println("coditions : " + visitor.getConditions());
+        System.out.println("orderBy : " + visitor.getOrderByColumns());
+
+        String output = SQLUtils.toSQLString(stmt, JdbcConstants.SQL_SERVER);
+        Assert.assertEquals("ALTER TABLE dependencies" //
+                            + "\n\tALTER COLUMN id bigint", output);
+
+        Assert.assertEquals(1, visitor.getTables().size());
+        Assert.assertEquals(1, visitor.getColumns().size());
+    }
+
+}

src/test/java/com/alibaba/druid/bvt/sql/sqlserver/SQLServerAlterTableTest_2.java

@@ -0,0 +1,53 @@
+/*
+ * 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.sql.sqlserver;
+
+import junit.framework.TestCase;
+
+import org.junit.Assert;
+
+import com.alibaba.druid.sql.SQLUtils;
+import com.alibaba.druid.sql.ast.SQLStatement;
+import com.alibaba.druid.sql.dialect.sqlserver.parser.SQLServerStatementParser;
+import com.alibaba.druid.sql.dialect.sqlserver.visitor.SQLServerSchemaStatVisitor;
+import com.alibaba.druid.sql.parser.Token;
+import com.alibaba.druid.util.JdbcConstants;
+
+public class SQLServerAlterTableTest_2 extends TestCase {
+
+    public void test_alter_first() throws Exception {
+        String sql = "ALTER TABLE dependencies ADD PRIMARY KEY(id)";
+        SQLServerStatementParser parser = new SQLServerStatementParser(sql);
+        SQLStatement stmt = parser.parseStatementList().get(0);
+        parser.match(Token.EOF);
+
+        SQLServerSchemaStatVisitor visitor = new SQLServerSchemaStatVisitor();
+        stmt.accept(visitor);
+
+        System.out.println("Tables : " + visitor.getTables());
+        System.out.println("fields : " + visitor.getColumns());
+        System.out.println("coditions : " + visitor.getConditions());
+        System.out.println("orderBy : " + visitor.getOrderByColumns());
+
+        String output = SQLUtils.toSQLString(stmt, JdbcConstants.SQL_SERVER);
+        Assert.assertEquals("ALTER TABLE dependencies" //
+                            + "\n\tADD PRIMARY KEY (id)", output);
+
+        Assert.assertEquals(1, visitor.getTables().size());
+        Assert.assertEquals(1, visitor.getColumns().size());
+    }
+
+}

src/test/java/com/alibaba/druid/bvt/sql/sqlserver/SQLServerAlterTableTest_3.java

@@ -0,0 +1,53 @@
+/*
+ * 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.sql.sqlserver;
+
+import junit.framework.TestCase;
+
+import org.junit.Assert;
+
+import com.alibaba.druid.sql.SQLUtils;
+import com.alibaba.druid.sql.ast.SQLStatement;
+import com.alibaba.druid.sql.dialect.sqlserver.parser.SQLServerStatementParser;
+import com.alibaba.druid.sql.dialect.sqlserver.visitor.SQLServerSchemaStatVisitor;
+import com.alibaba.druid.sql.parser.Token;
+import com.alibaba.druid.util.JdbcConstants;
+
+public class SQLServerAlterTableTest_3 extends TestCase {
+
+    public void test_alter_first() throws Exception {
+        String sql = "ALTER TABLE extensions ADD [core] bit";
+        SQLServerStatementParser parser = new SQLServerStatementParser(sql);
+        SQLStatement stmt = parser.parseStatementList().get(0);
+        parser.match(Token.EOF);
+
+        SQLServerSchemaStatVisitor visitor = new SQLServerSchemaStatVisitor();
+        stmt.accept(visitor);
+
+        System.out.println("Tables : " + visitor.getTables());
+        System.out.println("fields : " + visitor.getColumns());
+        System.out.println("coditions : " + visitor.getConditions());
+        System.out.println("orderBy : " + visitor.getOrderByColumns());
+
+        String output = SQLUtils.toSQLString(stmt, JdbcConstants.SQL_SERVER);
+        Assert.assertEquals("ALTER TABLE extensions" //
+                            + "\n\tADD ([core] bit)", output);
+
+        Assert.assertEquals(1, visitor.getTables().size());
+        Assert.assertEquals(1, visitor.getColumns().size());
+    }
+
+}

src/test/java/com/alibaba/druid/bvt/sql/sqlserver/SQLServerAlterTableTest_4.java

@@ -0,0 +1,53 @@
+/*
+ * 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.sql.sqlserver;
+
+import junit.framework.TestCase;
+
+import org.junit.Assert;
+
+import com.alibaba.druid.sql.SQLUtils;
+import com.alibaba.druid.sql.ast.SQLStatement;
+import com.alibaba.druid.sql.dialect.sqlserver.parser.SQLServerStatementParser;
+import com.alibaba.druid.sql.dialect.sqlserver.visitor.SQLServerSchemaStatVisitor;
+import com.alibaba.druid.sql.parser.Token;
+import com.alibaba.druid.util.JdbcConstants;
+
+public class SQLServerAlterTableTest_4 extends TestCase {
+
+    public void test_alter_first() throws Exception {
+        String sql = "ALTER TABLE extensions DROP COLUMN [category]";
+        SQLServerStatementParser parser = new SQLServerStatementParser(sql);
+        SQLStatement stmt = parser.parseStatementList().get(0);
+        parser.match(Token.EOF);
+
+        SQLServerSchemaStatVisitor visitor = new SQLServerSchemaStatVisitor();
+        stmt.accept(visitor);
+
+        System.out.println("Tables : " + visitor.getTables());
+        System.out.println("fields : " + visitor.getColumns());
+        System.out.println("coditions : " + visitor.getConditions());
+        System.out.println("orderBy : " + visitor.getOrderByColumns());
+
+        String output = SQLUtils.toSQLString(stmt, JdbcConstants.SQL_SERVER);
+        Assert.assertEquals("ALTER TABLE extensions" //
+                            + "\n\tDROP COLUMN [category]", output);
+
+        Assert.assertEquals(1, visitor.getTables().size());
+        Assert.assertEquals(1, visitor.getColumns().size());
+    }
+
+}

src/test/java/com/alibaba/druid/bvt/sql/sqlserver/SQLServerAlterTableTest_5.java

@@ -0,0 +1,53 @@
+/*
+ * 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.sql.sqlserver;
+
+import junit.framework.TestCase;
+
+import org.junit.Assert;
+
+import com.alibaba.druid.sql.SQLUtils;
+import com.alibaba.druid.sql.ast.SQLStatement;
+import com.alibaba.druid.sql.dialect.sqlserver.parser.SQLServerStatementParser;
+import com.alibaba.druid.sql.dialect.sqlserver.visitor.SQLServerSchemaStatVisitor;
+import com.alibaba.druid.sql.parser.Token;
+import com.alibaba.druid.util.JdbcConstants;
+
+public class SQLServerAlterTableTest_5 extends TestCase {
+
+    public void test_alter_first() throws Exception {
+        String sql = "ALTER TABLE project_measures DROP COLUMN diff_value_1, diff_value_2, diff_value_3";
+        SQLServerStatementParser parser = new SQLServerStatementParser(sql);
+        SQLStatement stmt = parser.parseStatementList().get(0);
+        parser.match(Token.EOF);
+
+        SQLServerSchemaStatVisitor visitor = new SQLServerSchemaStatVisitor();
+        stmt.accept(visitor);
+
+        System.out.println("Tables : " + visitor.getTables());
+        System.out.println("fields : " + visitor.getColumns());
+        System.out.println("coditions : " + visitor.getConditions());
+        System.out.println("orderBy : " + visitor.getOrderByColumns());
+
+        String output = SQLUtils.toSQLString(stmt, JdbcConstants.SQL_SERVER);
+        Assert.assertEquals("ALTER TABLE project_measures" //
+                            + "\n\tDROP COLUMN diff_value_1, diff_value_2, diff_value_3", output);
+
+        Assert.assertEquals(1, visitor.getTables().size());
+        Assert.assertEquals(3, visitor.getColumns().size());
+    }
+
+}

src/test/java/com/alibaba/druid/bvt/sql/sqlserver/SQLServerCreateIndexTest.java

@@ -0,0 +1,58 @@
+/*
+ * 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.sql.sqlserver;
+
+import java.util.List;
+
+import junit.framework.TestCase;
+
+import org.junit.Assert;
+
+import com.alibaba.druid.sql.ast.SQLStatement;
+import com.alibaba.druid.sql.ast.statement.SQLCreateIndexStatement;
+import com.alibaba.druid.sql.dialect.sqlserver.parser.SQLServerStatementParser;
+import com.alibaba.druid.sql.dialect.sqlserver.visitor.SQLServerSchemaStatVisitor;
+import com.alibaba.druid.stat.TableStat;
+import com.alibaba.druid.stat.TableStat.Column;
+
+public class SQLServerCreateIndexTest extends TestCase {
+
+    public void test_0() throws Exception {
+        String sql = "CREATE UNIQUE INDEX [unique_schema_migrations] ON [schema_migrations] ([version])";
+
+        SQLServerStatementParser parser = new SQLServerStatementParser(sql);
+        List<SQLStatement> statementList = parser.parseStatementList();
+        SQLCreateIndexStatement stmt = (SQLCreateIndexStatement) statementList.get(0);
+
+        Assert.assertEquals(1, statementList.size());
+
+        SQLServerSchemaStatVisitor visitor = new SQLServerSchemaStatVisitor();
+        stmt.accept(visitor);
+
+        System.out.println("Tables : " + visitor.getTables());
+        System.out.println("fields : " + visitor.getColumns());
+        System.out.println("coditions : " + visitor.getConditions());
+        System.out.println("orderBy : " + visitor.getOrderByColumns());
+
+        Assert.assertEquals(1, visitor.getTables().size());
+        Assert.assertEquals(1, visitor.getColumns().size());
+        Assert.assertEquals(0, visitor.getConditions().size());
+
+        Assert.assertTrue(visitor.getTables().containsKey(new TableStat.Name("schema_migrations")));
+
+        Assert.assertTrue(visitor.getColumns().contains(new Column("schema_migrations", "version")));
+    }
+}

src/test/java/com/alibaba/druid/bvt/sql/sqlserver/SQLServerCreateTableTest_1.java

@@ -0,0 +1,72 @@
+/*
+ * 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.sql.sqlserver;
+
+import java.util.List;
+
+import junit.framework.TestCase;
+
+import org.junit.Assert;
+
+import com.alibaba.druid.sql.ast.SQLStatement;
+import com.alibaba.druid.sql.ast.statement.SQLCreateTableStatement;
+import com.alibaba.druid.sql.dialect.sqlserver.parser.SQLServerStatementParser;
+import com.alibaba.druid.sql.dialect.sqlserver.visitor.SQLServerSchemaStatVisitor;
+import com.alibaba.druid.stat.TableStat;
+import com.alibaba.druid.stat.TableStat.Column;
+
+public class SQLServerCreateTableTest_1 extends TestCase {
+
+    public void test_0() throws Exception {
+        String sql = "CREATE TABLE [projects] ("//
+                     + "[id] int NOT NULL IDENTITY(1, 1) PRIMARY KEY, "//
+                     + "[name] NVARCHAR(256), [description] NVARCHAR(2000), "//
+                     + "[enabled] bit DEFAULT 1 NOT NULL, "//
+                     + "[scope] NVARCHAR(3), "//
+                     + "[qualifier] NVARCHAR(3), "//
+                     + "[kee] NVARCHAR(400), "//
+                     + "[root_id] int, " //
+                     + "[profile_id] int, " //
+                     + "[language] NVARCHAR(5), "//
+                     + "[copy_resource_id] int, "//
+                     + "[long_name] NVARCHAR(256)) ";
+
+        SQLServerStatementParser parser = new SQLServerStatementParser(sql);
+        List<SQLStatement> statementList = parser.parseStatementList();
+        SQLCreateTableStatement stmt = (SQLCreateTableStatement) statementList.get(0);
+
+        Assert.assertEquals(1, statementList.size());
+
+        SQLServerSchemaStatVisitor visitor = new SQLServerSchemaStatVisitor();
+        stmt.accept(visitor);
+
+        System.out.println("Tables : " + visitor.getTables());
+        System.out.println("fields : " + visitor.getColumns());
+        System.out.println("coditions : " + visitor.getConditions());
+        System.out.println("orderBy : " + visitor.getOrderByColumns());
+
+        Assert.assertEquals(1, visitor.getTables().size());
+        Assert.assertEquals(12, visitor.getColumns().size());
+        Assert.assertEquals(0, visitor.getConditions().size());
+
+        Assert.assertTrue(visitor.getTables().containsKey(new TableStat.Name("projects")));
+
+        Assert.assertTrue(visitor.getColumns().contains(new Column("projects", "id")));
+        Assert.assertTrue(visitor.getColumns().contains(new Column("projects", "name")));
+        Assert.assertTrue(visitor.getColumns().contains(new Column("projects", "enabled")));
+        Assert.assertTrue(visitor.getColumns().contains(new Column("projects", "scope")));
+    }
+}

src/test/java/com/alibaba/druid/bvt/sql/sqlserver/SQLServerDropIndex_Test.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.sql.sqlserver;
+
+import junit.framework.TestCase;
+
+import org.junit.Assert;
+
+import com.alibaba.druid.sql.SQLUtils;
+import com.alibaba.druid.sql.ast.SQLStatement;
+import com.alibaba.druid.sql.dialect.sqlserver.parser.SQLServerStatementParser;
+import com.alibaba.druid.sql.dialect.sqlserver.visitor.SQLServerSchemaStatVisitor;
+import com.alibaba.druid.sql.parser.Token;
+import com.alibaba.druid.util.JdbcConstants;
+
+public class SQLServerDropIndex_Test extends TestCase {
+
+    public void test_alter_first() throws Exception {
+        String sql = "DROP INDEX async_measure_snapshots.async_m_s_snapshot_id";
+        SQLServerStatementParser parser = new SQLServerStatementParser(sql);
+        SQLStatement stmt = parser.parseStatementList().get(0);
+        parser.match(Token.EOF);
+
+        SQLServerSchemaStatVisitor visitor = new SQLServerSchemaStatVisitor();
+        stmt.accept(visitor);
+
+        System.out.println("Tables : " + visitor.getTables());
+        System.out.println("fields : " + visitor.getColumns());
+        System.out.println("coditions : " + visitor.getConditions());
+        System.out.println("orderBy : " + visitor.getOrderByColumns());
+
+        String output = SQLUtils.toSQLString(stmt, JdbcConstants.SQL_SERVER);
+        Assert.assertEquals("DROP INDEX async_measure_snapshots.async_m_s_snapshot_id", output);
+
+        Assert.assertEquals(0, visitor.getTables().size());
+        Assert.assertEquals(0, visitor.getColumns().size());
+    }
+
+}

src/test/java/com/alibaba/druid/bvt/sql/sqlserver/SQLServerExec_Test.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.sql.sqlserver;
+
+import junit.framework.TestCase;
+
+import org.junit.Assert;
+
+import com.alibaba.druid.sql.SQLUtils;
+import com.alibaba.druid.sql.ast.SQLStatement;
+import com.alibaba.druid.sql.dialect.sqlserver.parser.SQLServerStatementParser;
+import com.alibaba.druid.sql.dialect.sqlserver.visitor.SQLServerSchemaStatVisitor;
+import com.alibaba.druid.sql.parser.Token;
+import com.alibaba.druid.util.JdbcConstants;
+
+public class SQLServerExec_Test extends TestCase {
+
+    public void test_alter_first() throws Exception {
+        String sql = "EXEC sp_rename 'rules.temp_plugin_config_key', 'plugin_config_key'";
+        SQLServerStatementParser parser = new SQLServerStatementParser(sql);
+        SQLStatement stmt = parser.parseStatementList().get(0);
+        parser.match(Token.EOF);
+
+        SQLServerSchemaStatVisitor visitor = new SQLServerSchemaStatVisitor();
+        stmt.accept(visitor);
+
+        System.out.println("Tables : " + visitor.getTables());
+        System.out.println("fields : " + visitor.getColumns());
+        System.out.println("coditions : " + visitor.getConditions());
+        System.out.println("orderBy : " + visitor.getOrderByColumns());
+
+        String output = SQLUtils.toSQLString(stmt, JdbcConstants.SQL_SERVER);
+        Assert.assertEquals("EXEC sp_rename 'rules.temp_plugin_config_key', 'plugin_config_key'", output);
+
+        Assert.assertEquals(0, visitor.getTables().size());
+        Assert.assertEquals(0, visitor.getColumns().size());
+    }
+
+}