content: /*
   * 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.select;
  
  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;
  
  import java.util.List;
  
  public class OracleSelectTest18 extends OracleTest {
      public void test_0() throws Exception {
          String sql = //
                  "begin " +
                          "   select min(snap_id), max(snap_id), " +
                          "       to_char(max(begin_interval_time + 16/24), 'yyyy-mm-dd hh24:mi:ss')," +
                          "       to_char(max(end_interval_time + 16/24), 'yyyy-mm-dd hh24:mi:ss') " +
                          "   into :bid, :eid, :bst, :est " +
                          "   from (select snap_id, begin_interval_time, end_interval_time" +
                          "           from v$instance a,dba_hist_snapshot b" +
                          "           where a.INSTANCE_NUMBER=b.INSTANCE_NUMBER and begin_interval_time >= sysdate - 150/1440" +
                          "           order by snap_id desc" +
                          "           )" +
                          "   where rownum < 3; " +
                          "   select 'awr_'||:bid||'_'||:eid||'.html' into :awr from dual; " +
                          "end;";
  
          OracleStatementParser parser = new OracleStatementParser(sql);
          List<SQLStatement> statementList = parser.parseStatementList();
          SQLStatement statemen = statementList.get(0);
          print(statementList);
  
          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());
          System.out.println("orderBy : " + visitor.getOrderByColumns());
  
          assertEquals(2, visitor.getTables().size());
  
          assertTrue(visitor.getTables().containsKey(new TableStat.Name("v$instance")));
          assertTrue(visitor.getTables().containsKey(new TableStat.Name("dba_hist_snapshot")));
  
          assertEquals(5, visitor.getColumns().size());
  
          // assertTrue(visitor.getColumns().contains(new TableStat.Column("pivot_table", "*")));
          // assertTrue(visitor.getColumns().contains(new TableStat.Column("pivot_table", "YEAR")));
          // assertTrue(visitor.getColumns().contains(new TableStat.Column("pivot_table", "order_mode")));
      }
  }
  