/*
* 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.util.JdbcConstants;
public class DB2SelectTest_10 extends DB2Test {
public void test_0() throws Exception {
String sql = "select * from ( select inner2_.*, rownumber() over(order by order of inner2_) as rownumber_ from ("
+ " select tsuserstb0_.USERID as USERID1_1_, tsuserstb0_.CREASTAF as CREASTAF2_1_, tsuserstb0_.CREATIME as CREATIME3_1_"
+ " , tsuserstb0_.LOCORGNO as LOCORGNO4_1_, tsuserstb0_.PWDMODIFYTIME as PWDMODIF5_1_, tsuserstb0_.REMARK01 as REMARK6_1_"
+ " , tsuserstb0_.REMARK02 as REMARK7_1_, tsuserstb0_.STAORGNO as STAORGNO8_1_, tsuserstb0_.UPDASTAF as UPDASTAF9_1_"
+ " , tsuserstb0_.UPDATIME as UPDATIM10_1_, tsuserstb0_.USERNAME as USERNAM11_1_, tsuserstb0_.USERPWD as USERPWD12_1_"
+ " , tsuserstb0_.USERSTATE as USERSTA13_1_ from TS_USERSTB tsuserstb0_ fetch first 20 rows only ) as inner2_ "
+ ") as inner1_"
+ " where rownumber_ > 10 order by rownumber_";
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(1, visitor.getTables().size());
Assert.assertEquals(13, visitor.getColumns().size());
Assert.assertEquals(0, visitor.getConditions().size());
Assert.assertTrue(visitor.getTables().containsKey(new TableStat.Name("TS_USERSTB")));
// Assert.assertTrue(visitor.getColumns().contains(new Column("mytable", "last_name")));
// Assert.assertTrue(visitor.getColumns().contains(new Column("mytable", "first_name")));
// Assert.assertTrue(visitor.getColumns().contains(new Column("mytable", "full_name")));
Assert.assertEquals("SELECT *"
+ "\nFROM (SELECT inner2_.*, ROWNUMBER() OVER (ORDER BY order OF inner2_) AS rownumber_"
+ "\n\tFROM (SELECT tsuserstb0_.USERID AS USERID1_1_, tsuserstb0_.CREASTAF AS CREASTAF2_1_, tsuserstb0_.CREATIME AS CREATIME3_1_, tsuserstb0_.LOCORGNO AS LOCORGNO4_1_, tsuserstb0_.PWDMODIFYTIME AS PWDMODIF5_1_"
+ "\n\t\t\t, tsuserstb0_.REMARK01 AS REMARK6_1_, tsuserstb0_.REMARK02 AS REMARK7_1_, tsuserstb0_.STAORGNO AS STAORGNO8_1_, tsuserstb0_.UPDASTAF AS UPDASTAF9_1_, tsuserstb0_.UPDATIME AS UPDATIM10_1_"
+ "\n\t\t\t, tsuserstb0_.USERNAME AS USERNAM11_1_, tsuserstb0_.USERPWD AS USERPWD12_1_, tsuserstb0_.USERSTATE AS USERSTA13_1_"
+ "\n\t\tFROM TS_USERSTB tsuserstb0_"
+ "\n\t\tFETCH FIRST 20 ROWS ONLY"
+ "\n\t\t) inner2_"
+ "\n\t) inner1_"
+ "\nWHERE rownumber_ > 10"
+ "\nORDER BY rownumber_", //
SQLUtils.toSQLString(stmt, JdbcConstants.DB2));
Assert.assertEquals("select *"
+ "\nfrom (select inner2_.*, rownumber() over (order by order of inner2_) as rownumber_"
+ "\n\tfrom (select tsuserstb0_.USERID as USERID1_1_, tsuserstb0_.CREASTAF as CREASTAF2_1_, tsuserstb0_.CREATIME as CREATIME3_1_, tsuserstb0_.LOCORGNO as LOCORGNO4_1_, tsuserstb0_.PWDMODIFYTIME as PWDMODIF5_1_"
+ "\n\t\t\t, tsuserstb0_.REMARK01 as REMARK6_1_, tsuserstb0_.REMARK02 as REMARK7_1_, tsuserstb0_.STAORGNO as STAORGNO8_1_, tsuserstb0_.UPDASTAF as UPDASTAF9_1_, tsuserstb0_.UPDATIME as UPDATIM10_1_"
+ "\n\t\t\t, tsuserstb0_.USERNAME as USERNAM11_1_, tsuserstb0_.USERPWD as USERPWD12_1_, tsuserstb0_.USERSTATE as USERSTA13_1_"
+ "\n\t\tfrom TS_USERSTB tsuserstb0_"
+ "\n\t\tfetch first 20 rows only"
+ "\n\t\t) inner2_"
+ "\n\t) inner1_"
+ "\nwhere rownumber_ > 10"
+ "\norder by rownumber_", //
SQLUtils.toSQLString(stmt, JdbcConstants.DB2, SQLUtils.DEFAULT_LCASE_FORMAT_OPTION));
}
}