Examples of java.sql.Statement.execute()

java.sql.Statement.execute()
Executes a supplied SQL statement. This may return multiple ResultSets.
Use the getResultSet or getUpdateCount methods to get the first result and getMoreResults to get any subsequent results. @param sql the SQL statement to execute @return true if the first result is a ResultSet, false if the firstresult is an update count or if there is no result @throws SQLException if an error occurs accessing the database


        stat.execute("prepare test(int, int) as select ?1*?2");
        rs = stat.executeQuery("execute test(3, 2)");
        rs.next();
        assertEquals(6, rs.getInt(1));
        stat.execute("deallocate test");


        PreparedStatement prep = conn.prepareStatement("insert into test values(?, ?)");
        ParameterMetaData meta = prep.getParameterMetaData();
        assertEquals(2, meta.getParameterCount());
        prep.setInt(1, 1);

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        s = rs.getString(3);
        assertEquals(s, "PUBLIC");
        assertFalse(rs.next());


        conn.setAutoCommit(false);
        stat.execute("delete from test");
        conn.rollback();
        stat.execute("update test set name = 'Hallo'");
        conn.commit();
        rs = stat.executeQuery("select * from test order by id");
        rs.next();

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        assertFalse(rs.next());


        conn.setAutoCommit(false);
        stat.execute("delete from test");
        conn.rollback();
        stat.execute("update test set name = 'Hallo'");
        conn.commit();
        rs = stat.executeQuery("select * from test order by id");
        rs.next();
        assertEquals(1, rs.getInt(1));
        assertEquals("Hallo", rs.getString(2));

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    }


    private void testFunctionTable() throws SQLException {
        Connection conn = getConnection("functions");
        Statement stat = conn.createStatement();
        stat.execute("create alias simple_function_table for \"" + TestFunctions.class.getName() + ".simpleFunctionTable\"");
        stat.execute("select * from simple_function_table() where a>0 and b in ('x', 'y')");
        conn.close();
    }


    /**

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    private void testFunctionTable() throws SQLException {
        Connection conn = getConnection("functions");
        Statement stat = conn.createStatement();
        stat.execute("create alias simple_function_table for \"" + TestFunctions.class.getName() + ".simpleFunctionTable\"");
        stat.execute("select * from simple_function_table() where a>0 and b in ('x', 'y')");
        conn.close();
    }


    /**
     * This method is called via reflection from the database.

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    private void testNvl2() throws SQLException {
        Connection conn = getConnection("functions");
        Statement stat = conn.createStatement();


        String createSQL = "CREATE TABLE testNvl2(id BIGINT, txt1 varchar, txt2 varchar, num number(9, 0));";
        stat.execute(createSQL);
        stat.execute("insert into testNvl2(id, txt1, txt2, num) values(1, 'test1', 'test2', null)");
        stat.execute("insert into testNvl2(id, txt1, txt2, num) values(2, null, 'test4', null)");
        stat.execute("insert into testNvl2(id, txt1, txt2, num) values(3, 'test5', null, null)");
        stat.execute("insert into testNvl2(id, txt1, txt2, num) values(4, null, null, null)");
        stat.execute("insert into testNvl2(id, txt1, txt2, num) values(5, '2', null, 1)");

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        Connection conn = getConnection("functions");
        Statement stat = conn.createStatement();


        String createSQL = "CREATE TABLE testNvl2(id BIGINT, txt1 varchar, txt2 varchar, num number(9, 0));";
        stat.execute(createSQL);
        stat.execute("insert into testNvl2(id, txt1, txt2, num) values(1, 'test1', 'test2', null)");
        stat.execute("insert into testNvl2(id, txt1, txt2, num) values(2, null, 'test4', null)");
        stat.execute("insert into testNvl2(id, txt1, txt2, num) values(3, 'test5', null, null)");
        stat.execute("insert into testNvl2(id, txt1, txt2, num) values(4, null, null, null)");
        stat.execute("insert into testNvl2(id, txt1, txt2, num) values(5, '2', null, 1)");
        stat.execute("insert into testNvl2(id, txt1, txt2, num) values(6, '2', null, null)");

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        Statement stat = conn.createStatement();


        String createSQL = "CREATE TABLE testNvl2(id BIGINT, txt1 varchar, txt2 varchar, num number(9, 0));";
        stat.execute(createSQL);
        stat.execute("insert into testNvl2(id, txt1, txt2, num) values(1, 'test1', 'test2', null)");
        stat.execute("insert into testNvl2(id, txt1, txt2, num) values(2, null, 'test4', null)");
        stat.execute("insert into testNvl2(id, txt1, txt2, num) values(3, 'test5', null, null)");
        stat.execute("insert into testNvl2(id, txt1, txt2, num) values(4, null, null, null)");
        stat.execute("insert into testNvl2(id, txt1, txt2, num) values(5, '2', null, 1)");
        stat.execute("insert into testNvl2(id, txt1, txt2, num) values(6, '2', null, null)");
        stat.execute("insert into testNvl2(id, txt1, txt2, num) values(7, 'test2', null, null)");

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        String createSQL = "CREATE TABLE testNvl2(id BIGINT, txt1 varchar, txt2 varchar, num number(9, 0));";
        stat.execute(createSQL);
        stat.execute("insert into testNvl2(id, txt1, txt2, num) values(1, 'test1', 'test2', null)");
        stat.execute("insert into testNvl2(id, txt1, txt2, num) values(2, null, 'test4', null)");
        stat.execute("insert into testNvl2(id, txt1, txt2, num) values(3, 'test5', null, null)");
        stat.execute("insert into testNvl2(id, txt1, txt2, num) values(4, null, null, null)");
        stat.execute("insert into testNvl2(id, txt1, txt2, num) values(5, '2', null, 1)");
        stat.execute("insert into testNvl2(id, txt1, txt2, num) values(6, '2', null, null)");
        stat.execute("insert into testNvl2(id, txt1, txt2, num) values(7, 'test2', null, null)");

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        String createSQL = "CREATE TABLE testNvl2(id BIGINT, txt1 varchar, txt2 varchar, num number(9, 0));";
        stat.execute(createSQL);
        stat.execute("insert into testNvl2(id, txt1, txt2, num) values(1, 'test1', 'test2', null)");
        stat.execute("insert into testNvl2(id, txt1, txt2, num) values(2, null, 'test4', null)");
        stat.execute("insert into testNvl2(id, txt1, txt2, num) values(3, 'test5', null, null)");
        stat.execute("insert into testNvl2(id, txt1, txt2, num) values(4, null, null, null)");
        stat.execute("insert into testNvl2(id, txt1, txt2, num) values(5, '2', null, 1)");
        stat.execute("insert into testNvl2(id, txt1, txt2, num) values(6, '2', null, null)");
        stat.execute("insert into testNvl2(id, txt1, txt2, num) values(7, 'test2', null, null)");


        String query = "SELECT NVL2(txt1, txt1, txt2), txt1 FROM testNvl2 order by id asc";

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