/*
* 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 junit.framework.TestCase;
import com.alibaba.druid.sql.ast.SQLStatement;
import com.alibaba.druid.sql.dialect.oracle.parser.OracleStatementParser;
import com.alibaba.druid.sql.dialect.oracle.visitor.OracleOutputVisitor;
public class OracleSQLParserTest extends TestCase {
public void test_1() throws Exception {
String sql = "SELECT employees_seq.nextval FROM DUAL;";
OracleStatementParser parser = new OracleStatementParser(sql);
List<SQLStatement> statementList = parser.parseStatementList();
Assert.assertEquals(1, statementList.size());
String text = output(statementList);
System.out.println(text);
}
public void test_2() throws Exception {
String sql = "SELECT LPAD(' ',2*(LEVEL-1)) || last_name org_chart, employee_id, manager_id, job_id FROM employees WHERE job_id != 'FI_MGR' START WITH job_id = 'AD_VP' CONNECT BY PRIOR employee_id = manager_id; ";
OracleStatementParser parser = new OracleStatementParser(sql);
List<SQLStatement> statementList = parser.parseStatementList();
Assert.assertEquals(1, statementList.size());
String text = output(statementList);
System.out.println(text);
}
private String output(List<SQLStatement> stmtList) {
StringBuilder out = new StringBuilder();
OracleOutputVisitor visitor = new OracleOutputVisitor(out);
for (SQLStatement stmt : stmtList) {
stmt.accept(visitor);
}
return out.toString();
}
}