Oracle使用小经验集锦(2008.11.14更新)

Oracle使用小经验集锦(2008.11.14更新)

@import url(http://www.blogjava.net/CuteSoft_Client/CuteEditor/Load.ashx?type=style&file=SyntaxHighlighter.css);@import url(/css/cuteeditor.css); 1、模糊匹配时忽略大小写
select * from table where lower(name) like lower('%a%');

2、去除某一列的尾部空格
update table_name set column_name=trim(column_name);

3、查看某个表的字段是否为空的语句：
select column_name,nullable from cols  t where t.table_name like '%GROUP_INFO';