content: /*
   * Copyright 1999-2018 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 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 OracleUpdateTest2 extends OracleTest {
      public void test_0() throws Exception {
          String sql = "UPDATE wrh$_tempfile tfh "
                  + "    SET (snap_id, filename, tsname) ="
                  + "    (SELECT :lah_snap_id, tf.name name, ts.name tsname"
                  +
                  "      FROM v$tempfile tf, ts$ ts"
                  +
                  "      WHERE tf.ts# = ts.ts# AND tfh.file# = tf.file# AND tfh.creation_change# = tf.creation_change#"
                  +
                  "  )" +
                  "WHERE (file#, creation_change#) IN        (" +
                  "          SELECT tf.tfnum, to_number(tf.tfcrc_scn) creation_change#           " +
                  "          FROM x$kcctf tf           " +
                  "          WHERE tf.tfdup != 0)    AND dbid    = :dbid    AND snap_id < :snap_id";
  
          OracleStatementParser parser = new OracleStatementParser(sql);
          List<SQLStatement> statementList = parser.parseStatementList();
          SQLStatement stmt = statementList.get(0);
          print(statementList);
  
          assertEquals(1, statementList.size());
  
          OracleSchemaStatVisitor visitor = new OracleSchemaStatVisitor();
          stmt.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());
  
          assertTrue(visitor.getTables().containsKey(new TableStat.Name("wrh$_tempfile")));
          assertTrue(visitor.getTables().containsKey(new TableStat.Name("x$kcctf")));
  
          assertEquals(4, visitor.getTables().size());
          assertEquals(15, visitor.getColumns().size());
  
          assertTrue(visitor.containsColumn("wrh$_tempfile", "snap_id"));
          assertTrue(visitor.containsColumn("wrh$_tempfile", "filename"));
          assertTrue(visitor.containsColumn("wrh$_tempfile", "tsname"));
          assertTrue(visitor.containsColumn("ts$", "name"));
          assertTrue(visitor.containsColumn("v$tempfile", "ts#"));
      }
  }
  