conn.createStatement(Result.TYPE_SCROLL_INSENITIVE, ResultSet.CONCUR_READ_ONLY);
2013-10-22 15:26
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createStatement返回的Statement对象是执行sql语句用的 第一个参数可以取值为 ResultSet.RTYPE_FORWORD_ONLY,只可向前滚动; ResultSet.TYPE_SCROLL_INSENSITIVE,双向滚动,但不及时更新,就是如果数据库里的数据修改过,并不在ResultSet中反应出来。 ResultSet.TYPE_SCROLL_SENSITIVE,双向滚动,并及时跟踪数据库的更新,以便更改ResultSet中的数据。 第二个参数可以取值为 ResultSet.CONCUR_READ_ONLY:这是缺省值,指定不可以更新 ResultSet ResultSet.CONCUR_UPDATABLE:指定可以更新 ResultSet
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