/*
* 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.db2;
import java.util.List;
import org.junit.Assert;
import com.alibaba.druid.sql.DB2Test;
import com.alibaba.druid.sql.SQLUtils;
import com.alibaba.druid.sql.ast.SQLStatement;
import com.alibaba.druid.sql.dialect.db2.parser.DB2StatementParser;
import com.alibaba.druid.sql.dialect.db2.visitor.DB2SchemaStatVisitor;
import com.alibaba.druid.stat.TableStat;
import com.alibaba.druid.stat.TableStat.Column;
import com.alibaba.druid.util.JdbcConstants;
public class DB2SelectTest_11 extends DB2Test {
public void test_0() throws Exception {
String sql = "SELECT A.F_0201, A.F_0301, A.F_0802, A.F_2100"
+ "\nFROM A, B"
+ "\nWHERE B.F_2211 = '5'"
+ "\n AND A.F_0301 = B.F_0301"
+ " AND Substr(B.F_0815, 1, 4) concat Substr ( B.F_0815,5,2 ) > A.F_0802"
+ " AND A.F_2100 > 0"
+ "\nUNION"
+ "\nSELECT A.F_0201, A.F_0301, A.F_0802, A.F_2100"
+ "\nFROM A"
+ "\nWHERE A.F_0301 NOT IN (SELECT F_0301"
+ "\n FROM B)"
+ "\n AND A.F_2100 > 0";
DB2StatementParser parser = new DB2StatementParser(sql);
List<SQLStatement> statementList = parser.parseStatementList();
SQLStatement stmt = statementList.get(0);
print(statementList);
Assert.assertEquals(1, statementList.size());
DB2SchemaStatVisitor visitor = new DB2SchemaStatVisitor();
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(2, visitor.getTables().size());
Assert.assertEquals(7, visitor.getColumns().size());
Assert.assertEquals(6, visitor.getConditions().size());
Assert.assertTrue(visitor.getTables().containsKey(new TableStat.Name("A")));
Assert.assertTrue(visitor.getColumns().contains(new Column("A", "F_0201")));
// Assert.assertTrue(visitor.getColumns().contains(new Column("mytable", "first_name")));
// Assert.assertTrue(visitor.getColumns().contains(new Column("mytable", "full_name")));
Assert.assertEquals("SELECT A.F_0201, A.F_0301, A.F_0802, A.F_2100"
+ "\nFROM A, B"
+ "\nWHERE B.F_2211 = '5'"
+ "\n\tAND A.F_0301 = B.F_0301"
+ "\n\tAND (Substr(B.F_0815, 1, 4) CONCAT Substr(B.F_0815, 5, 2)) > A.F_0802"
+ "\n\tAND A.F_2100 > 0"
+ "\nUNION"
+ "\nSELECT A.F_0201, A.F_0301, A.F_0802, A.F_2100"
+ "\nFROM A"
+ "\nWHERE A.F_0301 NOT IN (SELECT F_0301"
+ "\n\t\tFROM B)"
+ "\n\tAND A.F_2100 > 0", //
SQLUtils.toSQLString(stmt, JdbcConstants.DB2));
Assert.assertEquals("select A.F_0201, A.F_0301, A.F_0802, A.F_2100"
+ "\nfrom A, B"
+ "\nwhere B.F_2211 = '5'"
+ "\n\tand A.F_0301 = B.F_0301"
+ "\n\tand (Substr(B.F_0815, 1, 4) concat Substr(B.F_0815, 5, 2)) > A.F_0802"
+ "\n\tand A.F_2100 > 0"
+ "\nunion"
+ "\nselect A.F_0201, A.F_0301, A.F_0802, A.F_2100"
+ "\nfrom A"
+ "\nwhere A.F_0301 not in (select F_0301"
+ "\n\t\tfrom B)"
+ "\n\tand A.F_2100 > 0", //
SQLUtils.toSQLString(stmt, JdbcConstants.DB2, SQLUtils.DEFAULT_LCASE_FORMAT_OPTION));
}
}