Java Code Examples for java.sql.Statement

@Test
public void testAlterTableExistingDataViolatesConstraint() throws Exception {
    String tableName = "table4".toUpperCase();
    try(Statement s = conn.createStatement()){
        s.executeUpdate(format("create table %s ( "+
                "id int not null primary key, "+
                "i_gt int, "+
                "i_eq int, "+
                "i_lt int, "+
                "v_neq varchar(32), "+
                "v_in varchar(32))",tableName));
        s.executeUpdate(format("insert into %s values(1000, 200, 90, 79, 'ok', 'good1')",tableName));
        try{
            s.executeUpdate(format("alter table %s add constraint id_ge_ck check (id > 1000)",tableName));
            Assert.fail("Expected add or enable constraint exception");
        }catch(SQLException e){
            Assert.assertEquals("Expected failed attempt to add check constraint.","X0Y59",e.getSQLState());
        }
    }
}
 

@Test
public void testBaseTableAndIndexTableHaveRightScan() throws Exception {
    String index = generateUniqueName();
    String fullTableName = generateUniqueName();

    try (Connection conn = DriverManager.getConnection(getUrl())) {
        conn.setAutoCommit(true);
        try (Statement stmt = conn.createStatement()) {
            stmt.execute("CREATE TABLE " + fullTableName + "(ID1 BIGINT NOT NULL, ID2 BIGINT NOT NULL, " +
                    "VAL1 BIGINT, VAL2 BIGINT CONSTRAINT PK PRIMARY KEY (ID1,ID2))");
            stmt.execute("CREATE INDEX " + index + " ON " + fullTableName + " (ID2, ID1) INCLUDE (VAL2)");
        }

        PreparedStatement preparedStmt = conn.prepareStatement("SELECT VAL2 FROM " + fullTableName +
                " WHERE (ID2, ID1) IN ((1, 1),(2, 2))");
        QueryPlan queryPlan = PhoenixRuntime.getOptimizedQueryPlan(preparedStmt);
        queryPlan.getTableRef().getTable().getType();
        assertTrue(queryPlan.getExplainPlan().toString().contains(ExplainTable.POINT_LOOKUP_ON_STRING));
    }
}
 

@Override
public void run() {
  try {
    final GemFireCacheImpl cache;
    if (GemFireStore.getBootedInstance() != null
        && (cache = Misc.getGemFireCacheNoThrow()) != null
        && GemFireXDUtils.getMyVMKind().isAccessorOrStore()) {
      Connection conn = TestUtil.getConnection();
      Statement stmt = conn.createStatement();
      // also GemFireXD specific objects; first gateway senders/listeners
      for (AsyncEventQueue queue : cache.getAsyncEventQueues()) {
        executeCleanup(stmt, "drop asynceventlistener if exists \"" + queue.getId()
            + '"');
      }
      for (GatewaySender sender : cache.getGatewaySenders()) {
        executeCleanup(stmt, "drop gatewaysender if exists \"" + sender.getId()
            + '"');
      }
    }
  } catch (Exception ex) {
    getLogWriter().error("unexpected exception in cleanup", ex);
  }
}
 

public static void executeSelectForUpdateQuery(final String sql,
    final boolean exception, final int isolationLevel) {
  try {
    final java.sql.Connection conn = TestUtil.getConnection();
    Statement stmt = conn.createStatement(ResultSet.TYPE_FORWARD_ONLY,
        ResultSet.CONCUR_UPDATABLE, ResultSet.CLOSE_CURSORS_AT_COMMIT);
    if (isolationLevel != Connection.TRANSACTION_NONE) {
      conn.setTransactionIsolation(isolationLevel);
    }
    stmt.execute(sql);
    ResultSet rs = stmt.getResultSet();
    while(rs.next()) {
    }
    if (exception) {
      stmt.close();
      conn.commit();
      fail("The execution should have thrown exception");
    }
    stmt.close();
    conn.commit();
  } catch (Exception e) {
    if (!exception) {
      fail("should have got exception");
    }
  }
}
 

/**
 * Update the database for the "Village and Pillage" update, otherwise known as MineCraft 1.14.
 */
private void doUpdateVillageAndPillage() {
    Matcher versionCheck = Pattern.compile("\\d[.]\\d+").matcher(Bukkit.getVersion());
    if (!versionCheck.find()) {
        return;
    }
    int minorVersion = Integer.parseInt(versionCheck.group().substring(2));
    if (minorVersion >= 14) {
        Statement statement = null;
        try {
            statement = connection.createStatement();
            statement.executeUpdate("UPDATE " + prefix + "blocks SET name = 'OAK_SIGN' WHERE name = 'SIGN'");
            statement.executeUpdate("UPDATE " + prefix + "blocks SET name = 'OAK_WALL_SIGN' WHERE name = 'WALL_SIGN'");
        } catch (SQLException e) {
            e.printStackTrace();
        }
    }
}
 

public void setUp() throws Exception {
      super.setUp();
      conn = newConnection();

Statement stmt = conn.createStatement();
stmt.executeUpdate("DROP TABLE PUBLIC.emp IF EXISTS");
stmt.executeUpdate("CREATE TABLE PUBLIC.emp (emp_id INTEGER NOT NULL,name VARCHAR(30),salary DECIMAL(10,2),dept_id INTEGER,bus_start DATETIME NOT NULL,bus_end DATETIME NOT NULL);");

stmt.executeUpdate("insert into PUBLIC.emp (emp_id, name, salary, dept_id, bus_start, bus_end)"
	+"values"
	+"(1, 'Tom', 300000.00, 1, TIMESTAMP '2000-01-01 01:02:03', TIMESTAMP '2000-02-01 01:02:03'),"
	+"(2, 'Tom', 305000.00, 1, TIMESTAMP '2000-02-01 01:02:03', TIMESTAMP '2000-03-01 01:02:03'),"
	+"(3, 'Tom', 310000.00, 1, TIMESTAMP '2000-03-01 01:02:03', TIMESTAMP '2000-04-01 01:02:03')"
	+";");

stmt.close();
  }
 

/**
 * DERBY-1481 - ResultSet.beforeFirst() gives protocol error on scrollable,
 * updatable result sets that are downgraded to read-only
 * 
 * Check that no exception is thrown when calling positioning methods on a
 * result set that has been downgraded to read-only.
 *
 */
public void testDowngradeToScrollReadOnly() throws SQLException {
    Statement s = createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE, 
                                      ResultSet.CONCUR_UPDATABLE);
    ResultSet rs = s.executeQuery("select * from t1 order by b");

    // check that the ResultSet was downgraded
    assertWarning(rs.getWarnings(), 
            QUERY_NOT_QUALIFIED_FOR_UPDATABLE_RESULTSET);
    
    // call positioning methods
    rs.next();
    rs.next();
    rs.previous();
    rs.relative(1);
    rs.absolute(3);
    rs.relative(-1);
    rs.first();
    rs.last();
    rs.beforeFirst();
    rs.afterLast();
    
    // close result set and statement
    rs.close();
    s.close();
}
 

/**
 * Eviction already defined on HDFS table. Alter the table to add a foreign key constraint.
 */
public void testEvictIncomingWithAlterTableAddForeignKeyConstraint() throws Exception {
  setupConnection();

  Connection conn = jdbcConn;
  Statement stmt = conn.createStatement();

  stmt.execute("create hdfsstore hdfsdata namenode 'localhost' homedir '"
      + HDFS_DIR + "' QUEUEPERSISTENT true");
  
  stmt.execute("create table trade.customers (cid int not null, cust_name int, primary key (cid))  " + getOffHeapSuffix() + "  " 
      + "persistent hdfsstore (hdfsdata) "
      + "eviction by criteria ( cid > 5 ) EVICT INCOMING ");
  
  stmt.execute("create table trade.networth (netid int not null, cid int not null, cash decimal (30, 20), constraint netw_pk primary key (netid))  " + getOffHeapSuffix() + "  "
      + " persistent hdfsstore (hdfsdata)"
      + " eviction by criteria ( cash > 1000 ) EVICT INCOMING ");
  
  try {
    stmt.execute("alter table trade.networth add constraint " +
  	  "cust_newt_fk foreign key (cid) references trade.customers (cid)");
  } catch (SQLFeatureNotSupportedException e) {
    //Expected. Do nothing.
  }
}
 

public void close() {
  ResultSet savedResultSet = resultSet;
  if (savedResultSet != null) {
    try {
      resultSet = null;
      final Statement statement = savedResultSet.getStatement();
      savedResultSet.close();
      if (statement != null) {
        final Connection connection = statement.getConnection();
        statement.close();
        if (connection != null) {
          connection.close();
        }
      }
    } catch (SQLException e) {
      // ignore
    }
  }
}
 

@Test
public void testMultiStmtTempTable() throws SQLException
{
  Connection connection = getConnection();
  Statement statement = connection.createStatement();

  String entry = "success";
  statement.unwrap(SnowflakeStatement.class).setParameter(
      "MULTI_STATEMENT_COUNT", 2);
  statement.execute(
      "create or replace temporary table test_multi (cola string); insert into test_multi values ('" + entry + "')");
  // temporary table should persist outside of the above statement
  statement.unwrap(SnowflakeStatement.class).setParameter(
      "MULTI_STATEMENT_COUNT", 1);
  ResultSet rs = statement.executeQuery("select * from test_multi");
  rs.next();
  assertEquals(entry, rs.getString(1));

  statement.close();
  connection.close();
}
 

/**
 * 会调用setBaseStatement以关闭已有的Statement
 */
private Statement createStatementInternal(Connection conn, String sql, boolean isBatch) throws SQLException {
    Statement stmt;
    if (isBatch) {
        stmt = conn.createStatement();
    } else {
        int resultSetHoldability = this.resultSetHoldability;
        if (resultSetHoldability == -1) {// 未调用过setResultSetHoldability
            resultSetHoldability = conn.getHoldability();
        }
        stmt = conn.createStatement(this.resultSetType, this.resultSetConcurrency, resultSetHoldability);
    }

    setBaseStatement(stmt); // 会关闭已有的Statement
    stmt.setQueryTimeout(queryTimeout); // 这句也有可能抛出异常，放在最后
    stmt.setFetchSize(fetchSize);
    stmt.setMaxRows(maxRows);
    // 填充sql元信息
    if (stmt instanceof DataChannel) {
        ((DataChannel) stmt).fillMetaData(sqlMetaData);
    }
    return stmt;
}
 

/**
 * Simple counter query to have simple test inside test methods.
 *
 * @return number of customer in database
 * @throws Exception
 */
public int countCustomer() throws Exception {
    int result = -1;

    try (Statement stmt = con.createStatement()) {
        String query = "select count(*) from Customer";

        try (ResultSet rs = stmt.executeQuery(query)) {
            rs.next();
            Long cnt = rs.getLong(1);
            result = cnt.intValue();
        }
    }

    return result;
}
 

@Test void testInsertCreateNewCompositeUdt() throws Exception {
  try (Connection c = connect();
      Statement s = c.createStatement()) {
    boolean b = s.execute("create type mytype as (i int, j int)");
    assertFalse(b);
    b = s.execute("create table w (i int not null, j mytype)");
    assertFalse(b);
    int x = s.executeUpdate("insert into w "
        + "values (1, mytype(1, 1))");
    assertEquals(x, 1);

    try (ResultSet r = s.executeQuery("select * from w")) {
      assertTrue(r.next());
      assertEquals(r.getInt("i"), 1);
      assertArrayEquals(r.getObject("j", Struct.class).getAttributes(), new Object[] {1, 1});
      assertFalse(r.next());
    }
  }
}
 

private void cleanupDb() {
  try {
    Connection conn = newConnection();
    for (String sql : new String[] {
        String.format("DROP TABLE IF EXISTS %s", testTableName),
        String.format("DROP TABLE IF EXISTS %s", jobRunTableName),
        String.format("DROP TABLE IF EXISTS %s", queueTableName),
        String.format("DROP TABLE IF EXISTS %s", jobTableName) }) {
      Statement stat = conn.createStatement();
      stat.execute(sql);
      stat.close();
    }
    conn.close();
  } catch (SQLException ex) {
    ex.printStackTrace(); // this one we swallow since db might not have cleaned up last time
  }
}
 

/**
 * Assert that a user has select privilege on a given table / column
 * @param hasPrivilege whether or not the user has the privilege
 * @param user the user to check
 * @param schema the schema to check
 * @param table the table to check
 * @param columns the set of columns to check
 * @throws SQLException throws all exceptions
 */
public void assertSelectPrivilege(boolean hasPrivilege, String user, String schema, String table, String[] columns) throws SQLException{
  Connection c = openUserConnection(user);

  Statement s = c.createStatement();
  try {
      boolean b = s.execute("select " + columnListAsString(columns) + " from " + schema + "." + table);

        if (!hasPrivilege)
            fail("expected no SELECT permission on table");

  } catch (SQLException e) {
    if (!hasPrivilege) {
      assertSQLState("42502", e);
    } else {
      e.printStackTrace();
      fail("Unexpected lack of select privilege.");
    }
  }
    s.close();
  c.close();

  assertPrivilegeMetadata(hasPrivilege, "SELECT", user, schema, table, columns);
}
 

@Before
public void before() throws ClassNotFoundException, SQLException {
	System.setProperty("derby.stream.error.field", JdbcTestBase.class.getCanonicalName() + ".DEV_NULL");
	Class.forName(DRIVER_CLASS);

	try (
		Connection conn = DriverManager.getConnection(DB_URL + ";create=true");
		Statement statement = conn.createStatement()) {
		statement.executeUpdate("CREATE TABLE " + INPUT_TABLE + " (" +
				"id BIGINT NOT NULL," +
				"timestamp6_col TIMESTAMP, " +
				"timestamp9_col TIMESTAMP, " +
				"time_col TIME, " +
				"real_col FLOAT(23), " +    // A precision of 23 or less makes FLOAT equivalent to REAL.
				"double_col FLOAT(24)," +   // A precision of 24 or greater makes FLOAT equivalent to DOUBLE PRECISION.
				"decimal_col DECIMAL(10, 4))");
		statement.executeUpdate("INSERT INTO " + INPUT_TABLE + " VALUES (" +
				"1, TIMESTAMP('2020-01-01 15:35:00.123456'), TIMESTAMP('2020-01-01 15:35:00.123456789'), " +
				"TIME('15:35:00'), 1.175E-37, 1.79769E+308, 100.1234)");
		statement.executeUpdate("INSERT INTO " + INPUT_TABLE + " VALUES (" +
				"2, TIMESTAMP('2020-01-01 15:36:01.123456'), TIMESTAMP('2020-01-01 15:36:01.123456789'), " +
				"TIME('15:36:01'), -1.175E-37, -1.79769E+308, 101.1234)");
	}
}
 

/**
    * Test for delete where current of on temporary tables
    * 
    * @throws SQLException
    */
   public void testDeleteWhereCurrentOfOnGTT() throws SQLException {
       Statement s = createStatement();
       assertUpdateCount(s , 0 , "DECLARE GLOBAL TEMPORARY TABLE SESSION.t2(c21 int, c22 int) on commit delete rows not logged");
       assertUpdateCount(s , 1 , "insert into SESSION.t2 values(21, 1)");
       assertUpdateCount(s , 1 , "insert into SESSION.t2 values(22, 1)");
       ResultSet rs1 = s.executeQuery("select count(*) from SESSION.t2");
JDBC.assertSingleValueResultSet(rs1 , "2");
       PreparedStatement pStmt1 = prepareStatement("select c21 from session.t2 for update");
       ResultSet rs2 = pStmt1.executeQuery();
       rs2.next();
       PreparedStatement pStmt2 = prepareStatement("delete from session.t2 where current of "+ rs2.getCursorName());
       pStmt2.executeUpdate();
       rs1 = s.executeQuery("select * from SESSION.t2");
       rs1.next();
       assertEquals(22, rs1.getInt(1));
       assertEquals(1, rs1.getInt(2));
       rs2.next();
       pStmt2.executeUpdate();
       rs1 = s.executeQuery("select count(*) from SESSION.t2");
       rs1.next();
       assertEquals(0, rs1.getInt(1));
       rs2.close();
       assertUpdateCount(s , 0 , "DROP TABLE SESSION.t2");
   }
 

void select(String tableName) throws SQLException {

	Statement s = conn.createStatement();
	ResultSet rs = s.executeQuery("SELECT ID, name from " +  
								  tableName + " order by id" );
	int count = 0;
	int id = 0;
	while(rs.next())
	{
		int tid = rs.getInt(1);
		String name = rs.getString(2);
			if(name.equals("skywalker" + id) && tid!= id)
		{
			logMessage("DATA IN THE TABLE IS NOT AS EXPECTED");
			logMessage("Got :ID=" +  tid + " Name=:" + name);
			logMessage("Expected: ID=" + id + "Name=" + "skywalker" + id );
		}

		id++;
		count++;
	}
          
	rs.close();
	s.close();
          conn.commit();
}
 

public void testCreateGlobalHashIndexForPrimaryKey() throws SQLException, StandardException {
  // Create a schema
  Connection conn = getConnection();
  Statement s = conn.createStatement();
  s.execute("create schema EMP");

  // Check for PARTITION BY COLUMN
  s.execute("create table EMP.PARTITIONTESTTABLE (ID int not null, "
      + " SECONDID int not null, THIRDID int not null, primary key (ID, SECONDID))"
      + " PARTITION BY COLUMN (ID)"+ getOverflowSuffix());
  
  s.execute("INSERT INTO EMP.PARTITIONTESTTABLE values(1,2,3)");
  s.execute("INSERT INTO EMP.PARTITIONTESTTABLE values(4,5,6)");
  s.execute("INSERT INTO EMP.PARTITIONTESTTABLE values(7,8,9)");

  AlterTableTest.checkIndexType("EMP", "PARTITIONTESTTABLE",
      GfxdConstants.LOCAL_HASH1_INDEX_TYPE, "ID", "SECONDID");

  String[][] expectedRows = { { "1", "2", "3" } };
  ResultSet rs = s.executeQuery("Select * from EMP.PARTITIONTESTTABLE "
      + "where id=1 and secondid=2");
  JDBC.assertFullResultSet(rs, expectedRows);
}
 

public void testBasicDistinct() throws SQLException {
  Statement s = createStatement();

  s.execute("create table userInt (u integer)");
  s.execute("insert into userInt values (123)");
  s.execute("insert into userInt values (123)");
  s.execute("insert into userInt values (456)");
  s.execute("insert into userInt values (null)");
  s.execute("create table sqlInt (i int not null)");
  s.execute("insert into sqlInt values(123)");

  assertRowCount(2, s.executeQuery("select distinct u from userInt where u is not null"));
  assertRowCount(3, s.executeQuery("select u from userInt where u is not null"));
  try {
    s.executeQuery("select distinct i from sqlInt where i = (select distinct u from userInt)");
  } catch (SQLException e) {
    assertSQLState("21000", e);
  }

  s.execute("drop table userInt");
  s.execute("drop table sqlInt");
  s.close();
}
 

public static Runnable startSender() {
  CacheSerializableRunnable receiverConf = new CacheSerializableRunnable(
      "Configurator") {
    @Override
    public void run2() throws CacheException {
      try {
        Connection conn = TestUtil.jdbcConn;
        Statement st = conn.createStatement();
        StringBuilder str = new StringBuilder();
        str.append("CALL SYS.START_GATEWAYSENDER ('SENDER1')");
        st.execute(str.toString());
      }
      catch (SQLException sqle) {
        throw GemFireXDRuntimeException.newRuntimeException(null, sqle);
      }
    }

  };
  return receiverConf;
}
 

public ImmutableMap<String, Schema> getSchemas() throws QuarkException {
  Connection conn = null;
  Statement stmt = null;
  try {
    conn = this.getConnection();
    stmt = conn.createStatement();
    ResultSet rs = stmt.executeQuery(this.getCatalogSql());
    ImmutableMap<String, Schema> schemaMap = getSchemaFromResultSet(rs, this.getTypes(conn));
    rs.close();
    return schemaMap;
  } catch (ClassNotFoundException | SQLException s) {
    throw new QuarkException(s);
  } finally {
    try {
      if (stmt != null) {
        stmt.close();
      }

      if (conn != null) {
        conn.close();
      }
    } catch (SQLException e) {
      LOG.error("Exception thrown while closing connection to "
          + this.url + " " + e.getMessage(), e);
    }
  }
}
 

/**
 * Tests that <code>Statement.executeQuery()</code> fails when
 * multiple result sets are returned.
 * @exception SQLException if a database error occurs
 */
public void testExecuteQueryWithMoreThanOneDynamicResultSet()
    throws SQLException
{
    Statement stmt = createStatement();
    try {
        stmt.executeQuery("CALL RETRIEVE_DYNAMIC_RESULTS(2)");
        fail("executeQuery() didn't fail.");
    } catch (SQLException sqle) {
        assertMultipleResultsFromExecuteQuery(sqle);
    }
}
 

@Override
public void builderTable(final Statement stat) {
    try {
        stat.execute(createHelloBlogAuthUserLog());
        log.info("初始化plumemo_black_list完成");
    } catch (final SQLException e) {
        log.info("初始化plumemo_black_list失败", e);
    }
}
 

@Override
public void close(Throwable errorOrNull)
{
    try (Connection conn = connection) {
        try (Statement stmt = statement) {
            if (stmt != null) {
                this.flush();
            }
        }
    }
    catch (SQLException e) {
        logger.error("close connection fail", e);
    }
}
 

protected static void oneTimeTeardown() throws Exception {
    Session session = null;
    Statement stmt = null;
    try {
        session = HibernateFactory.getSession();
        stmt = session.connection().createStatement();
        Connection c = session.connection();
        forceQuery(c, "drop table exceptions_test");
        c.commit();
    }
    finally {
        HibernateHelper.cleanupDB(stmt);
    }
}
 

protected void tearDown() throws Exception {
    Connection con = getConnection();
    con.commit ();
    Statement stmt = con.createStatement();
    stmt.executeUpdate("drop table constraintest");
    stmt.close ();
    con.commit ();
    super.tearDown();
}
 

public void testIdenticalRows() throws SQLException {
       Statement s = createStatement();
       s.execute("delete from t");
       s.execute("insert into t values (1, 2, 3, 4, '1992-01-01', '19:01:01', '1992-01-01 19:01:01.000', 'hello', 'planet')");
       s.execute("insert into t values (1, 2, 3, 4, '1992-01-01', '19:01:01', '1992-01-01 19:01:01.000', 'hello', 'planet')");
	
	int[] expectedRows = { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 0,
			               0, 2, 0, 2, 2, 2, 0, -1, 1, 1, 1, 2, 2, 1,
			               2, 2, 1, 2, 1, 1, 1, 1 };
	
	checkDistinctRows(expectedRows);
       s.close();
}
 

@Override
@SuppressFBWarnings("SQL_NONCONSTANT_STRING_PASSED_TO_EXECUTE")
public ResultSet getSchemas(String catalog, String schemaPattern) throws SQLException {
    String query = "SELECT tablespace_name FROM SYSTABLESPACES";
    if (schemaPattern != null && !schemaPattern.isEmpty()) {
        query = query + " WHERE tablespace_name LIKE '" + SQLUtils.escape(schemaPattern) + "'";
    }

    try (Statement statement = con.createStatement();
         ResultSet rs = statement.executeQuery(query)) {

        List<Map<String, Object>> results = new ArrayList<>();
        while (rs.next()) {
            String tablespace_name = rs.getString("tablespace_name");

            Map<String, Object> data = new HashMap<>();

            data.put("TABLE_SCHEM", tablespace_name);
            data.put("TABLE_CATALOG", null);

            results.add(data);

        }
        ScanResultSetMetadata metadata = new ScanResultSetMetadata(GET_SCHEMAS_SCHEMA);
        return new HerdDBResultSet(new MapListScanResultSet(TransactionContext.NOTRANSACTION_ID, metadata, GET_SCHEMAS_SCHEMA, results));
    }
}
 

protected void updateGfxdOnlyTable(Connection conn, int[] newCid, int[] cid, String[] cust_name,
    Date[] since, String[] addr, int[] whichUpdate, int size) {
  PreparedStatement stmt = null;
  Statement s = getStmt(conn);
  int tid = getMyTid();
  
  for (int i=0 ; i<size ; i++) {
    
    if (whichUpdate[i] == 0) {
      Log.getLogWriter().info("update partition key statement is " + update[whichUpdate[i]]);
      stmt = getUnsupportedStmt(conn, update[whichUpdate[i]]);
    }
    else {
      if (SQLTest.testPartitionBy) { //will be removed after bug #39913 is fixed
        stmt = getCorrectTxStmt(conn, whichUpdate[i]);
      } 
      else {   
        stmt = getStmt(conn, update[whichUpdate[i]]);
      }
      
      try {
        if (stmt!=null)
          if (rand.nextBoolean())
            updateTable(s, newCid[i], cid[i], cust_name[i], since[i], addr[i], tid, whichUpdate[i]);
          else
            updateTable(stmt, newCid[i], cid[i], cust_name[i], since[i], addr[i], tid, whichUpdate[i]);
      } catch (SQLException se) {
        if (se.getSQLState().equals("42502") && testSecurity) {
          Log.getLogWriter().info("Got the expected exception for authorization," +
             " continuing tests");
        } else
          SQLHelper.handleSQLException(se);
      }    
    }
  }  
}