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|
/**
* Derby - Class org.apache.derbyTesting.functionTests.tests.lang.ScrollCursors1Test
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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 org.apache.derbyTesting.functionTests.tests.lang;
import java.sql.CallableStatement;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import junit.framework.Test;
import org.apache.derbyTesting.junit.BaseJDBCTestCase;
import org.apache.derbyTesting.junit.BaseTestSuite;
import org.apache.derbyTesting.junit.CleanDatabaseTestSetup;
import org.apache.derbyTesting.junit.JDBC;
import org.apache.derbyTesting.junit.RuntimeStatisticsParser;
import org.apache.derbyTesting.junit.TestConfiguration;
public class ScrollCursors1Test extends BaseJDBCTestCase {
public ScrollCursors1Test(String name) {
super(name);
}
public void testForwardOnlyNegative() throws SQLException {
Connection conn = getConnection();
PreparedStatement ps_c1 = conn.prepareStatement("select i from t1");
ResultSet rs = ps_c1.executeQuery();
try {
rs.getRow();
// client and embedded differ on getRow().
// spec says getRow is optional for forward only cursors.
if (usingEmbedded())
fail("getRow succeeded on forward only cursor");
} catch (SQLException se) {
assertSQLState("XJ061",se);
}
try {
rs.first();
fail("first() not allowed on forward only result set");
} catch(SQLException se) {
if (usingEmbedded())
assertSQLState("XJ061",se);
else
assertSQLState("XJ125",se);
}
try {
rs.last();
fail("last() not allowed on forward only result set");
} catch(SQLException se) {
if (usingEmbedded())
assertSQLState("XJ061",se);
else
assertSQLState("XJ125",se);
}
try {
rs.previous();
fail("previous() not allowed on forward only result set");
} catch(SQLException se) {
if (usingEmbedded())
assertSQLState("XJ061",se);
else
assertSQLState("XJ125",se);
}
try {
rs.beforeFirst();
fail("beforeFirst() not allowed on forward only result set");
} catch(SQLException se) {
if (usingEmbedded())
assertSQLState("XJ061",se);
else
assertSQLState("XJ125",se);
}
try {
rs.afterLast();
fail("afterLast() not allowed on forward only result set");
} catch(SQLException se) {
if (usingEmbedded())
assertSQLState("XJ061",se);
else
assertSQLState("XJ125",se);
}
try {
rs.absolute(1);
fail("absolute() not allowed on forward only result set");
} catch(SQLException se) {
if (usingEmbedded())
assertSQLState("XJ061",se);
else
assertSQLState("XJ125",se);
}
try {
rs.relative(1);
fail("relative() not allowed on forward only result set");
} catch(SQLException se) {
if (usingEmbedded())
assertSQLState("XJ061",se);
else
assertSQLState("XJ125",se);
}
rs.close();
ps_c1.close();
}
public void testScrollInsensitive() throws SQLException {
Connection conn = getConnection();
conn.setAutoCommit(false);
PreparedStatement ps_c1 = conn.prepareStatement("select * from t1",
ResultSet.TYPE_SCROLL_INSENSITIVE,ResultSet.CONCUR_READ_ONLY );
ResultSet rs = ps_c1.executeQuery();
rs.absolute(0);
assertNoCurrentRow(rs);
rs.close();
rs = ps_c1.executeQuery();
rs.relative(0);
assertNoCurrentRow(rs);
rs.close();
rs = ps_c1.executeQuery();
rs.relative(2);
assertEquals("c",rs.getString(1).trim());
assertEquals(3, rs.getInt(2));
rs.close();
rs = ps_c1.executeQuery();
rs.first();
assertEquals("b", rs.getString(1).trim());
assertEquals(2, rs.getInt(2));
assertEquals(1, rs.getRow());
rs.next();
assertEquals("c",rs.getString(1).trim());
assertEquals(3, rs.getInt(2));
assertEquals(2,rs.getRow());
assertEquals(2,rs.getRow());
rs.first();
assertEquals("b", rs.getString(1).trim());
assertEquals(2, rs.getInt(2));
assertEquals(1, rs.getRow());
rs.next();
assertEquals("c",rs.getString(1).trim());
assertEquals(3, rs.getInt(2));
assertEquals(2,rs.getRow());
rs.next();
assertEquals("d",rs.getString(1).trim());
assertEquals(4, rs.getInt(2));
assertEquals(3,rs.getRow());
rs.first();
assertEquals("b", rs.getString(1).trim());
assertEquals(2, rs.getInt(2));
assertEquals(1, rs.getRow());
rs.next();
assertEquals("c",rs.getString(1).trim());
assertEquals(3, rs.getInt(2));
assertEquals(2,rs.getRow());
rs.afterLast();
assertNoCurrentRow(rs);
assertEquals(0,rs.getRow());
assertFalse(rs.next());
assertNoCurrentRow(rs);
assertEquals(0,rs.getRow());
rs.previous();
assertEquals("m",rs.getString(1).trim());
assertEquals(13, rs.getInt(2));
assertEquals(12, rs.getRow());
rs.previous();
assertEquals("l",rs.getString(1).trim());
assertEquals(12, rs.getInt(2));
assertEquals(11, rs.getRow());
rs.last();
assertEquals("m",rs.getString(1).trim());
assertEquals(13, rs.getInt(2));
assertEquals(12, rs.getRow());
rs.beforeFirst();
assertNoCurrentRow(rs);
assertEquals(0,rs.getRow());
rs.next();
assertEquals("b", rs.getString(1).trim());
assertEquals(2, rs.getInt(2));
assertEquals(1, rs.getRow());
rs.absolute(12);
assertEquals("m",rs.getString(1).trim());
assertEquals(13, rs.getInt(2));
assertEquals(12, rs.getRow());
rs.absolute(-11);
assertEquals("c",rs.getString(1).trim());
assertEquals(3, rs.getInt(2));
assertEquals(2,rs.getRow());
rs.absolute(13);
assertNoCurrentRow(rs);
assertEquals(0,rs.getRow());
rs.absolute(-1);
assertEquals("m",rs.getString(1).trim());
assertEquals(13, rs.getInt(2));
assertEquals(12, rs.getRow());
rs.close();
rs = ps_c1.executeQuery();
// do last first
rs.last();
assertEquals("m",rs.getString(1).trim());
assertEquals(13, rs.getInt(2));
assertEquals(12, rs.getRow());
assertFalse(rs.next());
assertNoCurrentRow(rs);
rs.last();
assertEquals("m",rs.getString(1).trim());
assertEquals(13, rs.getInt(2));
assertEquals(12, rs.getRow());
rs.previous();
assertEquals("l",rs.getString(1).trim());
assertEquals(12, rs.getInt(2));
assertEquals(11, rs.getRow());
rs.first();
assertEquals("b", rs.getString(1).trim());
assertEquals(2, rs.getInt(2));
assertEquals(1, rs.getRow());
rs.previous();
assertNoCurrentRow(rs);
rs.next();
assertEquals("b", rs.getString(1).trim());
assertEquals(2, rs.getInt(2));
assertEquals(1, rs.getRow());
rs.close();
// afterLast first
rs = ps_c1.executeQuery();
rs.afterLast();
assertNoCurrentRow(rs);
rs.previous();
assertEquals("m",rs.getString(1).trim());
assertEquals(13, rs.getInt(2));
assertEquals(12, rs.getRow());
rs.previous();
assertEquals("l",rs.getString(1).trim());
assertEquals(12, rs.getInt(2));
assertEquals(11, rs.getRow());
rs.close();
// go to next to last row and then do next
ps_c1.close();
ps_c1 = conn.prepareStatement("select * from t1 where i >=11",
ResultSet.TYPE_SCROLL_INSENSITIVE,ResultSet.CONCUR_READ_ONLY);
rs = ps_c1.executeQuery();
rs.next();
assertEquals("k",rs.getString(1).trim());
assertEquals(11, rs.getInt(2));
assertEquals(1, rs.getRow());
rs.next();
assertEquals("l",rs.getString(1).trim());
assertEquals(12, rs.getInt(2));
assertEquals(2, rs.getRow());
rs.last();
assertEquals("m",rs.getString(1).trim());
assertEquals(13, rs.getInt(2));
assertEquals(3, rs.getRow());
rs.previous();
assertEquals("l",rs.getString(1).trim());
assertEquals(12, rs.getInt(2));
assertEquals(2, rs.getRow());
rs.afterLast();
assertNoCurrentRow(rs);
rs.previous();
assertEquals("m",rs.getString(1).trim());
assertEquals(13, rs.getInt(2));
assertEquals(3, rs.getRow());
rs.close();
// start at after ;ast/
rs = ps_c1.executeQuery();
rs.afterLast();
assertNoCurrentRow(rs);
rs.previous();
assertEquals("m",rs.getString(1).trim());
assertEquals(13, rs.getInt(2));
assertEquals(3, rs.getRow());
rs.close();
ps_c1.close();
// use absolute to get rows before scan would get to them.
ps_c1 = conn.prepareStatement("select i from t1", ResultSet.TYPE_SCROLL_INSENSITIVE,
ResultSet.CONCUR_READ_ONLY);
rs = ps_c1.executeQuery();
rs.absolute(5);
assertEquals(6, rs.getInt(1));
assertEquals(5, rs.getRow());
rs.absolute(-5);
assertEquals(9,rs.getInt(1));
assertEquals(8, rs.getRow());
rs.absolute(5);
assertEquals(6,rs.getInt(1));
assertEquals(5, rs.getRow());
rs.close();
rs = ps_c1.executeQuery();
rs.absolute(13);
assertNoCurrentRow(rs);
rs.previous();
assertEquals(13, rs.getInt(1));
assertEquals(12, rs.getRow());
rs.close();
rs = ps_c1.executeQuery();
rs.absolute(-13);
assertNoCurrentRow(rs);
rs.next();
assertEquals(2, rs.getInt(1));
assertEquals(1,rs.getRow());
rs.close();
rs = ps_c1.executeQuery();
rs.first();
assertEquals(2,rs.getInt(1));
assertEquals(1,rs.getRow());
rs.relative(11);
assertEquals(13, rs.getInt(1));
assertEquals(12, rs.getRow());
rs.relative(1);
assertNoCurrentRow(rs);
rs.last();
assertEquals(13, rs.getInt(1));
assertEquals(12,rs.getRow());
rs.relative(-11);
assertEquals(2,rs.getInt(1));
assertEquals(1,rs.getRow());
rs.close();
ps_c1.close();
conn.commit();
// scroll sensitive cursor becomes scroll insensitive.
ps_c1 = conn.prepareStatement("Select i from t1", ResultSet.TYPE_SCROLL_SENSITIVE,
ResultSet.CONCUR_READ_ONLY);
rs = ps_c1.executeQuery();
rs.first();
assertEquals(2,rs.getInt(1));
rs.next();
assertEquals(3,rs.getInt(1));
Statement s = conn.createStatement();
s.executeUpdate("update t1 set i = 666 where i = 2");
rs.first();
conn.rollback();
rs.close();
// verify that statement cache works correctly with scroll and forward only cursors.
// with the same query text.
ps_c1 = conn.prepareStatement("select i from t1", ResultSet.TYPE_SCROLL_INSENSITIVE,
ResultSet.CONCUR_READ_ONLY);
rs = ps_c1.executeQuery();
PreparedStatement ps_c2 = conn.prepareStatement("select i from t1");
ResultSet rs2 = ps_c2.executeQuery();
rs.first();
assertEquals(2,rs.getInt(1));
rs2.next();
assertEquals(2,rs2.getInt(1));
try {
rs2.first();
fail("first() not allowed on forward only result set");
} catch(SQLException se) {
if (usingEmbedded())
assertSQLState("XJ061",se);
else
assertSQLState("XJ125",se);
}
rs.close();
rs2.close();
ps_c1.close();
ps_c1.close();
// first, last, etc on empty result set
ps_c1 = conn.prepareStatement("select i from t1 where 1=0",
ResultSet.TYPE_SCROLL_INSENSITIVE,ResultSet.CONCUR_READ_ONLY);
rs = ps_c1.executeQuery();
rs.first();
assertNoCurrentRow(rs);
rs.previous();
assertNoCurrentRow(rs);
rs.next();
assertNoCurrentRow(rs);
rs.last();
assertNoCurrentRow(rs);
rs.previous();
assertNoCurrentRow(rs);
rs.absolute(1);
assertNoCurrentRow(rs);
rs.absolute(-1);
assertNoCurrentRow(rs);
assertEquals(0,rs.getRow());
rs.close();
rs = ps_c1.executeQuery();
rs.afterLast();
assertNoCurrentRow(rs);
rs.previous();
assertNoCurrentRow(rs);
rs.beforeFirst();
assertNoCurrentRow(rs);
rs.next();
assertNoCurrentRow(rs);
rs.close();
rs = ps_c1.executeQuery();
rs.absolute(1);
assertNoCurrentRow(rs);
rs.absolute(-1);
assertNoCurrentRow(rs);
rs.close();
rs = ps_c1.executeQuery();
rs.absolute(-1);
assertNoCurrentRow(rs);
rs.absolute(1);
assertNoCurrentRow(rs);
rs.close();
// with autocommit on
conn.setAutoCommit(false);
rs = ps_c1.executeQuery();
rs = ps_c1.executeQuery();
rs.first();
assertNoCurrentRow(rs);
rs.previous();
assertNoCurrentRow(rs);
rs.next();
assertNoCurrentRow(rs);
rs.last();
assertNoCurrentRow(rs);
rs.previous();
assertNoCurrentRow(rs);
rs.absolute(1);
assertNoCurrentRow(rs);
rs.absolute(-1);
assertNoCurrentRow(rs);
rs.next();
assertNoCurrentRow(rs);
rs.next();
assertNoCurrentRow(rs);
rs.close();
ps_c1.close();
// cursor on a sort
ps_c1 = conn.prepareStatement("select * from t1 order by i desc",ResultSet.TYPE_SCROLL_INSENSITIVE,
ResultSet.CONCUR_READ_ONLY);
rs = ps_c1.executeQuery();
rs.last();
assertEquals("b",rs.getString(1).trim());
assertEquals(2,rs.getInt(2));
rs.first();
assertEquals("m",rs.getString(1).trim());
assertEquals(13,rs.getInt(2));
rs.relative(11);
assertEquals("b",rs.getString(1).trim());
assertEquals(2,rs.getInt(2));
rs.previous();
assertEquals("c",rs.getString(1).trim());
assertEquals(3,rs.getInt(2));
rs.close();
ps_c1.close();
ps_c1 = conn.prepareStatement("select * from t1",
ResultSet.TYPE_SCROLL_INSENSITIVE,ResultSet.CONCUR_READ_ONLY);
CallableStatement cs = conn.prepareCall("call SYSCS_UTIL.SYSCS_SET_RUNTIMESTATISTICS(1)");
cs.execute();
cs.close();
rs = ps_c1.executeQuery();
rs.last();
assertEquals("m",rs.getString(1).trim());
assertEquals(13,rs.getInt(2));
rs.first();
assertEquals("b",rs.getString(1).trim());
assertEquals(2,rs.getInt(2));
rs.next();
assertEquals("c",rs.getString(1).trim());
assertEquals(3,rs.getInt(2));
rs.close();
rs2 = s.executeQuery("values SYSCS_UTIL.SYSCS_GET_RUNTIMESTATISTICS()");
rs2.next();
if (usingEmbedded())
{
// not sure why I get a null rts with network server.
RuntimeStatisticsParser rts = new RuntimeStatisticsParser(rs2.getString(1));
rs2.close();
assertEquals(Connection.TRANSACTION_READ_COMMITTED, rts.getIsolationLevel());
assertTrue(rts.usedTableScan());
assertTrue(rts.isScrollInsensitive());
}
rs.close();
ps_c1.close();
}
public void testNoHoldScrollableResults() throws SQLException{
Connection conn = getConnection();
conn.setHoldability(ResultSet.CLOSE_CURSORS_AT_COMMIT);
// Beetle 4551 - insensitive cursor uses estimated row count which
// might be pessimistic and will get out of memory error
Statement s = createStatement();
s.executeUpdate("create table big(a int generated always as identity (start with 1, increment by 1))");
for (int i = 0; i < 10; i++)
s.executeUpdate("insert into big values(default)");
PreparedStatement ps_c1 = conn.prepareStatement("select * from big b1 left outer join big b2 on b1.a = b2.a left outer join big b3 on b2.a = b3.a left outer join big b4 on b3.a = b4.a left outer join (big b5 left outer join (big b6 left outer join (big b7 left outer join big b8 on b7.a = b8.a) on b6.a=b7.a) on b5.a = b6.a) on b4.a = b5.a");
ResultSet rs = ps_c1.executeQuery();
s.executeUpdate("drop table big");
}
public void testSimpleScrollCursors() throws SQLException {
Connection conn = getConnection();
Statement s = conn.createStatement();
s.executeUpdate("create table t (a int)");
PreparedStatement ps = conn.prepareStatement("insert into t values (?)");
for (int i = 1; i <=5; i++)
{
ps.setInt(1, i);
ps.executeUpdate();
}
ps.close();
PreparedStatement ps_c1 = conn.prepareStatement("select * from t", ResultSet.TYPE_SCROLL_INSENSITIVE,
ResultSet.CONCUR_READ_ONLY);
ResultSet rs = ps_c1.executeQuery();
rs.first();
assertEquals(1,rs.getInt(1));
rs.next();
assertEquals(2,rs.getInt(1));
rs.previous();
assertEquals(1,rs.getInt(1));
rs.last();
assertEquals(5,rs.getInt(1));
rs.absolute(2);
assertEquals(2, rs.getInt(1));
rs.relative(2);
assertEquals(4,rs.getInt(1));
rs.close();
// since JCC gets 64 results and then scrolls within them
// lets try each p ositioning command as the first command for the cursor.
rs = ps_c1.executeQuery();
rs.next();
assertEquals(1,rs.getInt(1));
rs.close();
rs = ps_c1.executeQuery();
rs.last();
assertEquals(5,rs.getInt(1));
rs.close();
rs = ps_c1.executeQuery();
rs.absolute(3);
assertEquals(3,rs.getInt(1));
rs.next();
assertEquals(4,rs.getInt(1));
rs.close();
ps_c1.close();
// lets try a table with more than 64 rows.
s.executeUpdate("create table tab1 (a int)");
PreparedStatement is = conn.prepareStatement("insert into tab1 values (?)");
for (int i = 1; i <= 70; i++) {
is.setInt(1, i);
is.executeUpdate();
}
ps_c1 = conn.prepareStatement("select * from tab1",ResultSet.TYPE_SCROLL_INSENSITIVE,
ResultSet.CONCUR_READ_ONLY);
rs = ps_c1.executeQuery();
rs.first();
assertEquals(1,rs.getInt(1));
rs.last();
assertEquals(70,rs.getInt(1));
rs.absolute(65);
assertEquals(65,rs.getInt(1));
rs.absolute(-1);
assertEquals(70,rs.getInt(1));
rs.close();
ps_c1.close();
// try sensitive scroll cursors bug 4677
ps_c1 = conn.prepareStatement("select * from t1",ResultSet.TYPE_SCROLL_SENSITIVE,
ResultSet.CONCUR_READ_ONLY);
rs = ps_c1.executeQuery();
rs.close();
ps_c1.close();
ps_c1 = conn.prepareStatement("select * from t1 for update",ResultSet.TYPE_SCROLL_SENSITIVE,
ResultSet.CONCUR_UPDATABLE);
rs.close();
s.executeUpdate("drop table tab1");
// defect 5225, outer joins returning NULLS
s.executeUpdate("create table tab1(i1 bigint not null, c1 varchar(64) not null)");
s.executeUpdate("create table tab2 (i2 bigint not null, c2 varchar(64) not null)");
s.executeUpdate("insert into tab1 values (1, 'String 1')");
s.executeUpdate("insert into tab1 values (2, 'String 2')");
s.executeUpdate("insert into tab2 values (1, 'String 1')");
s.executeUpdate("insert into tab2 values (3, 'String 3')");
rs = s.executeQuery("select c1 from tab1 right outer join tab2 on (i1=i2)");
JDBC.assertFullResultSet(rs, new String[][] {{"String 1"},{null}});
rs = s.executeQuery("select c2 from tab1 right outer join tab2 on (i1=i2)");
JDBC.assertFullResultSet(rs, new String[][] {{"String 1"},{"String 3"}});
// left outer join
rs = s.executeQuery("select c1 from tab1 left outer join tab2 on (i1=i2)");
JDBC.assertFullResultSet(rs, new String[][] {{"String 1"},{"String 2"}});
rs = s.executeQuery("select c2 from tab1 left outer join tab2 on (i1=i2)");
JDBC.assertFullResultSet(rs, new String[][] {{"String 1"},{null}});
s.executeUpdate("drop table t");
s.executeUpdate("drop table tab1");
s.executeUpdate("drop table tab2");
}
public void testScrollCursors3() throws SQLException {
Connection conn = getConnection();
Connection conn2 = openDefaultConnection();
Statement s = conn.createStatement();
s.executeUpdate("create table u1.t1(c1 int, c2 int)");
s.executeUpdate("insert into u1.t1 values (1, 2), (3, 4), (5, 6), (7, 8), (9, 10)");
PreparedStatement ps_c1 = conn.prepareStatement("select * from u1.t1", ResultSet.TYPE_SCROLL_INSENSITIVE,
ResultSet.CONCUR_READ_ONLY);
ResultSet rs = ps_c1.executeQuery();
// see what happens when other user when we close our cursor before
// they are done.
PreparedStatement ps_c2 = conn2.prepareStatement("select * from u1.t1", ResultSet.TYPE_SCROLL_INSENSITIVE,
ResultSet.CONCUR_READ_ONLY);
ResultSet rs2 = ps_c2.executeQuery();
rs.next();
assertEquals(1, rs.getInt(1));
assertEquals(2, rs.getInt(2));
rs2.next();
assertEquals(1, rs.getInt(1));
assertEquals(2, rs.getInt(2));
rs.last();
assertEquals(9, rs.getInt(1));
assertEquals(10, rs.getInt(2));
rs2.last();
assertEquals(9, rs.getInt(1));
assertEquals(10, rs.getInt(2));
rs.previous();
assertEquals(7, rs.getInt(1));
assertEquals(8, rs.getInt(2));
rs2.close();
rs.first();
assertEquals(1, rs.getInt(1));
assertEquals(2, rs.getInt(2));
rs.close();
s.executeUpdate("drop table u1.t1");
}
private void assertNoCurrentRow(ResultSet rs) throws SQLException {
try {
rs.getString(1);
fail("getString not allowed after beforeFirst()");
}catch (SQLException se ){
if (usingEmbedded())
assertSQLState("24000",se);
else
assertSQLState("XJ121",se);
}
assertEquals(0,rs.getRow());
}
public static Test baseSuite(String name) {
BaseTestSuite suite = new BaseTestSuite(name);
suite.addTestSuite(ScrollCursors1Test.class);
return new CleanDatabaseTestSetup(suite) {
/**
* Create and populate table
*
* @see org.apache.derbyTesting.junit.CleanDatabaseTestSetup#decorateSQL(java.sql.Statement)
*/
protected void decorateSQL(Statement s) throws SQLException {
s.executeUpdate("create table t1(c50 char(50), i int)");
s.executeUpdate(" create table t2(c50 char(50), i int)");
// populate tables
s.executeUpdate("insert into t1 values ('b', 2), ('c', 3), ('d', 4), "
+ "('e', 5),"
+ " ('f', 6), ('g', 7), ('h', 8), ('i', 9),"
+ " ('j', 10), ('k', 11), ('l', 12), ('m', 13)");
}
};
}
public static Test suite() {
BaseTestSuite suite = new BaseTestSuite("ScrollCursors1");
suite.addTest(baseSuite("ScrollCursors1:embedded"));
suite.addTest(TestConfiguration.clientServerDecorator(baseSuite("ScrollCursors1:client")));
return suite;
}
}
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