当前位置: 首页>>代码示例>>Java>>正文


Java ResultSet.updateNClob方法代码示例

本文整理汇总了Java中java.sql.ResultSet.updateNClob方法的典型用法代码示例。如果您正苦于以下问题:Java ResultSet.updateNClob方法的具体用法?Java ResultSet.updateNClob怎么用?Java ResultSet.updateNClob使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在java.sql.ResultSet的用法示例。


在下文中一共展示了ResultSet.updateNClob方法的1个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的Java代码示例。

示例1: testUpdateNClob

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();
}
 
开发者ID:bragex,项目名称:the-vigilantes,代码行数:67,代码来源:StatementsTest.java


注:本文中的java.sql.ResultSet.updateNClob方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。