/*
* 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.oracle;
import java.util.List;
import org.junit.Assert;
import com.alibaba.druid.sql.OracleTest;
import com.alibaba.druid.sql.ast.SQLStatement;
import com.alibaba.druid.sql.dialect.oracle.parser.OracleStatementParser;
import com.alibaba.druid.sql.dialect.oracle.visitor.OracleSchemaStatVisitor;
import com.alibaba.druid.stat.TableStat;
public class OracleSelectTest3 extends OracleTest {
public void test_0() throws Exception {
String sql = "SELECT department_id, last_name, salary " + //
" FROM employees x " + //
" WHERE salary > (SELECT AVG(salary) " + //
" FROM employees " + //
" WHERE x.department_id = department_id) " + //
" ORDER BY department_id; ";
OracleStatementParser parser = new OracleStatementParser(sql);
List<SQLStatement> statementList = parser.parseStatementList();
SQLStatement statemen = statementList.get(0);
print(statementList);
Assert.assertEquals(1, statementList.size());
OracleSchemaStatVisitor visitor = new OracleSchemaStatVisitor();
statemen.accept(visitor);
System.out.println("Tables : " + visitor.getTables());
System.out.println("fields : " + visitor.getColumns());
System.out.println("coditions : " + visitor.getConditions());
System.out.println("relationships : " + visitor.getRelationships());
Assert.assertEquals(1, visitor.getTables().size());
Assert.assertTrue(visitor.getTables().containsKey(new TableStat.Name("employees")));
Assert.assertEquals(3, visitor.getColumns().size());
Assert.assertTrue(visitor.getColumns().contains(new TableStat.Column("employees", "department_id")));
Assert.assertTrue(visitor.getColumns().contains(new TableStat.Column("employees", "last_name")));
Assert.assertTrue(visitor.getColumns().contains(new TableStat.Column("employees", "salary")));
}
}