Java ResultSet.moveToInsertRow方法代码示例

import java.sql.ResultSet; //导入方法依赖的package包/类
/**
 * Tests fix for updatable streams being supported in updatable result sets.
 * 
 * @throws Exception
 *             if the test fails.
 */
public void testUpdatableStream() throws Exception {
    try {
        this.stmt.executeUpdate("DROP TABLE IF EXISTS updateStreamTest");
        this.stmt.executeUpdate("CREATE TABLE updateStreamTest (keyField INT NOT NULL AUTO_INCREMENT PRIMARY KEY, field1 BLOB)");

        int streamLength = 16385;
        byte[] streamData = new byte[streamLength];

        /* create an updatable statement */
        Statement updStmt = this.conn.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE, ResultSet.CONCUR_UPDATABLE);

        /* fill the resultset with some values */
        ResultSet updRs = updStmt.executeQuery("SELECT * FROM updateStreamTest");

        /* move to insertRow */
        updRs.moveToInsertRow();

        /* update the table */
        updRs.updateBinaryStream("field1", new ByteArrayInputStream(streamData), streamLength);

        updRs.insertRow();
    } finally {
        this.stmt.executeUpdate("DROP TABLE IF EXISTS updateStreamTest");
    }
}
 

import java.sql.ResultSet; //导入方法依赖的package包/类
/**
 * Tests for ResultSet.updateNClob()
 * 
 * @throws Exception
 */
public void testUpdateNClob() throws Exception {
    createTable("testUpdateNChlob", "(c1 CHAR(10) PRIMARY KEY, c2 NATIONAL CHARACTER(10)) default character set sjis");
    Properties props1 = new Properties();
    props1.put("useServerPrepStmts", "true"); // use server-side prepared statement
    props1.put("characterEncoding", "UTF-8"); // ensure charset isn't utf8 here
    Connection conn1 = getConnectionWithProps(props1);
    PreparedStatement pstmt1 = conn1.prepareStatement("INSERT INTO testUpdateNChlob (c1, c2) VALUES (?, ?)");
    pstmt1.setString(1, "1");
    NClob nClob1 = conn1.createNClob();
    nClob1.setString(1, "aaa");
    pstmt1.setNClob(2, nClob1);
    pstmt1.execute();
    Statement stmt1 = conn1.createStatement(ResultSet.TYPE_FORWARD_ONLY, ResultSet.CONCUR_UPDATABLE);
    ResultSet rs1 = stmt1.executeQuery("SELECT c1, c2 FROM testUpdateNChlob");
    rs1.next();
    NClob nClob2 = conn1.createNClob();
    nClob2.setString(1, "bbb");
    rs1.updateNClob("c2", nClob2);
    rs1.updateRow();
    rs1.moveToInsertRow();
    rs1.updateString("c1", "2");
    NClob nClob3 = conn1.createNClob();
    nClob3.setString(1, "ccc");
    rs1.updateNClob("c2", nClob3);
    rs1.insertRow();
    ResultSet rs2 = stmt1.executeQuery("SELECT c1, c2 FROM testUpdateNChlob");
    rs2.next();
    assertEquals("1", rs2.getString("c1"));
    assertEquals("bbb", rs2.getNString("c2"));
    rs2.next();
    assertEquals("2", rs2.getString("c1"));
    assertEquals("ccc", rs2.getNString("c2"));
    pstmt1.close();
    stmt1.close();
    conn1.close();

    createTable("testUpdateNChlob", "(c1 CHAR(10) PRIMARY KEY, c2 CHAR(10)) default character set sjis"); // sjis field
    Properties props2 = new Properties();
    props2.put("useServerPrepStmts", "true"); // use server-side prepared statement
    props2.put("characterEncoding", "SJIS"); // ensure charset isn't utf8 here
    Connection conn2 = getConnectionWithProps(props2);
    PreparedStatement pstmt2 = conn2.prepareStatement("INSERT INTO testUpdateNChlob (c1, c2) VALUES (?, ?)");
    pstmt2.setString(1, "1");
    pstmt2.setString(2, "aaa");
    pstmt2.execute();
    Statement stmt2 = conn2.createStatement(ResultSet.TYPE_FORWARD_ONLY, ResultSet.CONCUR_UPDATABLE);
    ResultSet rs3 = stmt2.executeQuery("SELECT c1, c2 FROM testUpdateNChlob");
    rs3.next();
    NClob nClob4 = conn2.createNClob();
    nClob4.setString(1, "bbb");
    try {
        rs3.updateNClob("c2", nClob4); // field's charset isn't utf8
        fail();
    } catch (SQLException ex) {
        assertEquals("Can not call updateNClob() when field's character set isn't UTF-8", ex.getMessage());
    }
    rs3.close();
    pstmt2.close();
    stmt2.close();
    conn2.close();
}
 

import java.sql.ResultSet; //导入方法依赖的package包/类
/**
 * Tests for ResultSet.updateNCharacterStream()
 * 
 * @throws Exception
 */
public void testUpdateNCharacterStream() throws Exception {
    createTable("testUpdateNCharacterStream", "(c1 CHAR(10) PRIMARY KEY, c2 NATIONAL CHARACTER(10)) default character set sjis");
    Properties props1 = new Properties();
    props1.put("useServerPrepStmts", "true"); // use server-side prepared statement
    props1.put("characterEncoding", "UTF-8"); // ensure charset isn't utf8 here
    Connection conn1 = getConnectionWithProps(props1);
    PreparedStatement pstmt1 = conn1.prepareStatement("INSERT INTO testUpdateNCharacterStream (c1, c2) VALUES (?, ?)");
    pstmt1.setString(1, "1");
    pstmt1.setNCharacterStream(2, new StringReader("aaa"), 3);
    pstmt1.execute();
    Statement stmt1 = conn1.createStatement(ResultSet.TYPE_FORWARD_ONLY, ResultSet.CONCUR_UPDATABLE);
    ResultSet rs1 = stmt1.executeQuery("SELECT c1, c2 FROM testUpdateNCharacterStream");
    rs1.next();
    rs1.updateNCharacterStream("c2", new StringReader("bbb"), 3);
    rs1.updateRow();
    rs1.moveToInsertRow();
    rs1.updateString("c1", "2");
    rs1.updateNCharacterStream("c2", new StringReader("ccc"), 3);
    rs1.insertRow();
    ResultSet rs2 = stmt1.executeQuery("SELECT c1, c2 FROM testUpdateNCharacterStream");
    rs2.next();
    assertEquals("1", rs2.getString("c1"));
    assertEquals("bbb", rs2.getNString("c2"));
    rs2.next();
    assertEquals("2", rs2.getString("c1"));
    assertEquals("ccc", rs2.getNString("c2"));
    pstmt1.close();
    stmt1.close();
    conn1.close();

    createTable("testUpdateNCharacterStream", "(c1 CHAR(10) PRIMARY KEY, c2 CHAR(10)) default character set sjis"); // sjis field
    Properties props2 = new Properties();
    props2.put("useServerPrepStmts", "true"); // use server-side prepared statement
    props2.put("characterEncoding", "SJIS"); // ensure charset isn't utf8 here
    Connection conn2 = getConnectionWithProps(props2);
    PreparedStatement pstmt2 = conn2.prepareStatement("INSERT INTO testUpdateNCharacterStream (c1, c2) VALUES (?, ?)");
    pstmt2.setString(1, "1");
    pstmt2.setString(2, "aaa");
    pstmt2.execute();
    Statement stmt2 = conn2.createStatement(ResultSet.TYPE_FORWARD_ONLY, ResultSet.CONCUR_UPDATABLE);
    ResultSet rs3 = stmt2.executeQuery("SELECT c1, c2 FROM testUpdateNCharacterStream");
    rs3.next();
    try {
        rs3.updateNCharacterStream("c2", new StringReader("bbb"), 3); // field's charset isn't utf8
        fail();
    } catch (SQLException ex) {
        assertEquals("Can not call updateNCharacterStream() when field's character set isn't UTF-8", ex.getMessage());
    }
    rs3.close();
    pstmt2.close();
    stmt2.close();
    conn2.close();
}
 

import java.sql.ResultSet; //导入方法依赖的package包/类
/**
 * Tests for ResultSet.updateNString()
 * 
 * @throws Exception
 */
public void testUpdateNString() throws Exception {
    createTable("testUpdateNString", "(c1 CHAR(10) PRIMARY KEY, c2 NATIONAL CHARACTER(10)) default character set sjis");
    Properties props1 = new Properties();
    props1.put("useServerPrepStmts", "true"); // use server-side prepared statement
    props1.put("characterEncoding", "UTF-8"); // ensure charset is utf8 here
    Connection conn1 = getConnectionWithProps(props1);
    PreparedStatement pstmt1 = conn1.prepareStatement("INSERT INTO testUpdateNString (c1, c2) VALUES (?, ?)");
    pstmt1.setString(1, "1");
    pstmt1.setNString(2, "aaa");
    pstmt1.execute();
    Statement stmt1 = conn1.createStatement(ResultSet.TYPE_FORWARD_ONLY, ResultSet.CONCUR_UPDATABLE);
    ResultSet rs1 = stmt1.executeQuery("SELECT c1, c2 FROM testUpdateNString");
    rs1.next();
    rs1.updateNString("c2", "bbb");
    rs1.updateRow();
    rs1.moveToInsertRow();
    rs1.updateString("c1", "2");
    rs1.updateNString("c2", "ccc");
    rs1.insertRow();
    ResultSet rs2 = stmt1.executeQuery("SELECT c1, c2 FROM testUpdateNString");
    rs2.next();
    assertEquals("1", rs2.getString("c1"));
    assertEquals("bbb", rs2.getNString("c2"));
    rs2.next();
    assertEquals("2", rs2.getString("c1"));
    assertEquals("ccc", rs2.getNString("c2"));
    pstmt1.close();
    stmt1.close();
    conn1.close();

    createTable("testUpdateNString", "(c1 CHAR(10) PRIMARY KEY, c2 CHAR(10)) default character set sjis"); // sjis field
    Properties props2 = new Properties();
    props2.put("useServerPrepStmts", "true"); // use server-side prepared statement
    props2.put("characterEncoding", "SJIS"); // ensure charset isn't utf8 here
    Connection conn2 = getConnectionWithProps(props2);
    PreparedStatement pstmt2 = conn2.prepareStatement("INSERT INTO testUpdateNString (c1, c2) VALUES (?, ?)");
    pstmt2.setString(1, "1");
    pstmt2.setString(2, "aaa");
    pstmt2.execute();
    Statement stmt2 = conn2.createStatement(ResultSet.TYPE_FORWARD_ONLY, ResultSet.CONCUR_UPDATABLE);
    ResultSet rs3 = stmt2.executeQuery("SELECT c1, c2 FROM testUpdateNString");
    rs3.next();
    try {
        rs3.updateNString("c2", "bbb"); // field's charset isn't utf8
        fail();
    } catch (SQLException ex) {
        assertEquals("Can not call updateNString() when field's character set isn't UTF-8", ex.getMessage());
    }
    rs3.close();
    pstmt2.close();
    stmt2.close();
    conn2.close();
}
 

import java.sql.ResultSet; //导入方法依赖的package包/类
public void testQuery() {

        try {
            Connection c = newConnection();
            Statement st = c.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE,
                                             ResultSet.CONCUR_UPDATABLE);
            String s =
                "CREATE TABLE T (I INTEGER, C CHARACTER(10), B BIT(4) DEFAULT B'')";

            st.execute(s);

            s = "INSERT INTO T VALUES(?,?, DEFAULT)";

            PreparedStatement ps = c.prepareStatement(s);

            for (int i = 1; i <= 20; i++) {
                ps.setInt(1, i);
                ps.setString(2, "TEST " + i);
                ps.execute();
            }

            c.setAutoCommit(false);

            s = "SELECT * FROM T";

            ResultSet rs = st.executeQuery(s);

            rs.absolute(10);
            rs.updateString(2, "UPDATE10");
            rs.updateRow();
            rs.absolute(11);
            rs.deleteRow();
            rs.moveToInsertRow();
            rs.updateInt(1, 1011);
            rs.updateString(2, "INSERT1011");
            rs.updateString(3, "0101");
            rs.insertRow();
            rs.close();

            rs = st.executeQuery(s);

            while (rs.next()) {
                System.out.println("" + rs.getInt(1) + "      "
                                   + rs.getString(2) + "      "
                                   + rs.getString(3));
            }

            st.execute("SHUTDOWN");

            if (!isNetwork) {
                c.close();
            }
        } catch (Exception e) {
            System.out.print(e);
        }
    }