字段内容里有不可见字符,不是空格,怎么去掉?

select   *   from  col  like   ' % ' + char ( 9 ) + ' % '
select   *   from  col  like   ' % ' + char ( 10 ) + ' % '
select   *   from  col  like   ' % ' + char ( 13 ) + ' % '

chr(10)表示换行
chr(9)表示打出一个TAB键的空格！

< html >
< head >
< title > VBscript < / title>
< meta http - equiv = " Content-Type "  content = " text/html; charset=gb2312 " >
< / head>
< body >< script language = " VBScript "  type = " text/VBScript " >
alert  " a " & chr( 9 ) & " b " & chr( 10 ) & " c " & chr( 9 ) & chr( 10 ) & " d "
< / script>
< / body>
< / html>

chr(13)代表回车,chr(32)代表空格，chr(34)代表"

转载于:https://www.cnblogs.com/onlyendure/archive/2008/05/12/1194151.html