/*
* Copyright 1999-2017 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 OracleMergeTest extends OracleTest {
public void test_0() throws Exception {
String sql = "MERGE INTO bonuses D" + //
" USING (SELECT employee_id, salary, department_id FROM employees" + //
" WHERE department_id = 80) S" + //
" ON (D.employee_id = S.employee_id)" + //
" WHEN MATCHED THEN UPDATE SET D.bonus = D.bonus + S.salary*0.01" + //
" DELETE WHERE (S.salary > 8000)" + //
" WHEN NOT MATCHED THEN INSERT (D.employee_id, D.bonus)" + //
" VALUES (S.employee_id, S.salary*0.01)" + //
" WHERE (S.salary <= 8000);";
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(2, visitor.getTables().size());
Assert.assertTrue(visitor.getTables().containsKey(new TableStat.Name("employees")));
Assert.assertTrue(visitor.getTables().containsKey(new TableStat.Name("bonuses")));
Assert.assertEquals(5, visitor.getColumns().size());
Assert.assertTrue(visitor.getColumns().contains(new TableStat.Column("employees", "employee_id")));
Assert.assertTrue(visitor.getColumns().contains(new TableStat.Column("employees", "salary")));
Assert.assertTrue(visitor.getColumns().contains(new TableStat.Column("employees", "department_id")));
Assert.assertTrue(visitor.getColumns().contains(new TableStat.Column("bonuses", "employee_id")));
Assert.assertTrue(visitor.getColumns().contains(new TableStat.Column("bonuses", "bonus")));
}
}