oracleÖÐClob×Ö¶ÎÖеĻسµ»»ÐÐÔÚjspÖÐչʾµÄÎÊÌâ
ÔÚ¿ª·¢¹ý³Ì³öÏÖÕâôһ¸öÎÊÌ⣺
±ÈÈ磺һ¸ö×Ö¶Îcontent ÀàÐÍCLOB£¬ÕâÆäÖдæµÄÓпÉÄܸ´ÖÆÕ³Ìù¹ýÀ´µÄword excel htmlÖеÄÄÚÈÝ£¬ÓÃjava½«ÕâЩÄÚÈÝ´æÈ룬´æÈëºóÓÐÌØÊâµÄ·ûºÅ ±ÈÈç»Ø³µ»»Ðеȡ£ÄÇô²»ÄÜÕý³£Õ¹Ê¾µÄÊý¾Ý¡£
½â¾ö·½°¸£º
´æÈëÊý¾ÝµÄÊǽ«Õâ¸öÊý¾ÝcontentdataÔÚjsÖнøÐÐ
String(contentdata).replace(/&/g, "&").replace(/>/g, ">").replace(/</g, "<").replace(/"/g, """);
html±êÇ©±àÒë´¦Àí£¨´Ë´¦ÒýÓÃÔÚExt.util.Format.htmlEncode £¬Èç¹ûÊÇextÊý¾ÝÌá½»Ö±½ÓExt.util.Format.htmlEncode£¨contentdata£©£©
ÔÚºǫ́ÓÃÌá½»ÓÃ
Context initCtx = new InitialContext(); DataSource ds = (DataSource)JNDIUtil.lookup(initCtx) ;
Connection conn = ds.getConnection();
PreparedStatement ps=conn.prepareStatement("insert...values(?...)"),
ps.setObject(5,contentdata)
......
jspÖÐչʾ£ºsqlÓï¾äÖжԴË×ֶνøÐÐÕâÑùµÄ´¦Àí£ºselect REPLACE(REPLACE(content,chr(13),''),chr(10),'') content from table£»
Êä³ö£º
.....
<tr> <td><span> ÄÚ ÈÝ£º</span></td><td><span id="content" >
<% String content=rs.getClob(5)==null?"":rs.getClob(5).getSubString((long)1, (int)rs.getClob(5).length());//¶ÁÈ¡³öclobÊý¾Ý½øÐÐclobµ½×Ö·û´®µÄת»»%>
<script>
document.getElementById("content").innerHTML=String("<%=content%>").replace(/&/g, "&").replace(/>/g, ">").replace(/</g, "<").replace(/"/g, '"');//½«×ª»»ºóµÄ×Ö·û´®ÔÚ½øÐÐhtml±êÇ©µÄ·´±àÒ룬£¨´Ë´¦ÒýÓÃÔÚExt.util.Format.htmlDecode £¬Èç¹ûÊÇextÊý¾ÝÌá½»Ö±½ÓExt.util.Format.htmlDecode£¨content£©£©
</script>
&n
Ïà¹ØÎĵµ£º
1.ÔÚORACLEÖÐÓÃselect * from all_usersÏÔʾËùÓеÄÓû§£¬¶øÔÚMYSQLÖÐÏÔʾËùÓÐÊý¾Ý¿âµÄÃüÁîÊÇshow databases¡£¶ÔÓÚÎÒµÄÀí½â£¬ORACLEÏîÄ¿À´ËµÒ»¸öÏîÄ¿¾ÍÓ¦¸ÃÓÐÒ»¸öÓû§ºÍÆä¶ÔÓ¦µÄ±í¿Õ¼ä£¬¶øMYSQLÏîÄ¿ÖÐÒ²Ó¦¸ÃÓиöÓû§ºÍÒ»¸ö¿â¡£ÔÚORACLE(db2Ò²Ò»Ñù)Öбí¿Õ¼äÊÇÎļþϵͳÖеÄÎïÀíÈÝÆ÷µÄÂß¼±íʾ£¬ÊÓͼ¡¢´¥·¢Æ÷ºÍ´æ´¢¹ý³ÌÒ² ......
ÊÓͼµÄ¸ÅÄî
ÊÓͼÊÇ»ùÓÚÒ»Õűí»ò¶àÕűí»òÁíÍâÒ»¸öÊÓͼµÄÂß¼±í¡£ÊÓͼ²»Í¬ÓÚ±í£¬ÊÓͼ±¾Éí²»°üº¬ÈκÎÊý¾Ý¡£±íÊÇʵ¼Ê¶ÀÁ¢´æÔÚµÄʵÌ壬ÊÇÓÃÓÚ´æ´¢Êý¾ÝµÄ»ù±¾½á¹¹¡£¶øÊÓͼֻÊÇÒ»ÖÖ¶¨Ò壬¶ÔÓ¦Ò»¸ö²éѯÓï¾ä¡£ÊÓͼµÄÊý¾Ý¶¼À´×ÔÓÚijЩ±í£¬ÕâЩ±í±»³ÆÎª»ù±í¡£Í¨¹ýÊÓͼÀ´²é¿´±í£¬¾ÍÏñÊÇ´Ó²»Í¬µÄ½Ç¶ÈÀ´¹Û²ìÒ»¸ö(»ò¶à¸ö)±í¡£
Ê ......
ÔÚÖ´ÐÐÒ»¸ö´æ´¢¹ý³Ì½¨±íʱ£¬³öÏÖÁËÕâ¸öORA-38301:ÎÞ·¨¶Ô»ØÊÕÕ¾ÖеĶÔÏóÖ´ÐÐDDL/DML´íÎó¡£·¢ÏÖÔÀ´ÕâÊÇ10GµÄÒ»¸öÐÂÌØÐÔ£¬»ØÊÕÕ¾¡£¶ÔÓÚdropµÄ±í²¢²»ÊÇÖ±½Óɾ³ýµôµÄ¡£¶øÊÇ·ÅÔÚ»ØÊÕÕ¾ÖÐÁË¡£RecycleBin¡£
¿ÉÊÇÔÚ»ØÊÕÕ¾ÖÐûÓв鵽Õâ¸ö±í¡£
select * from recyclebin;
ºÜÆæ¹Ö¡£
½øÐÐɾ³ý²Ù×÷¡£
½øÐÐɾ³ýºó£¬»¹ÊDz»ÄܶԸà ......
ÈçºÎÐÞ¸ÄOracleĬÈÏÓû§ÃÜÂëÓÐЧÆÚʱ¼ä
1¡¢²é¿´Óû§µÄproifleÊÇÄĸö£¬Ò»°ãÊÇdefault£º
sql>SELECT username,PROFILE from dba_users;
2¡¢²é¿´Ö¸¶¨¸ÅÒªÎļþ£¨Èçdefault£©µÄÃÜÂëÓÐЧÆÚÉèÖãº
sql>SELECT * from dba_profiles s WHERE s.profile='DEFAULT' AND resource_name='PASSWORD_LIFE_TIME';
3¡¢½«ÃÜÂëÓÐÐ ......
¿ª·ÅÐÔ ¡¡¡¡SQL Server
¡¡¡¡Ö»ÄÜÔÚWindows ÉÏÔËÐУ¬Ã»ÓÐË¿ºÁµÄ¿ª·ÅÐÔ£¬²Ù×÷ϵͳµÄϵͳµÄÎȶ¨¶ÔÊý¾Ý¿âÊÇÊ®·ÖÖØÒªµÄ¡£Windows9XϵÁвúÆ·ÊÇÆ«ÖØÓÚ×ÀÃæÓ¦Óã¬NT serverÖ»ÊʺÏÖÐСÐÍÆóÒµ¡£¶øÇÒWindowsƽ̨µÄ¿É¿¿ÐÔ£¬°²È«ÐÔºÍÉìËõÐÔÊǷdz£ÓÐÏ޵ġ£Ëü²»ÏóUnixÄÇÑù¾Ã¾¿¼Ñ飬ÓÈÆäÊÇÔÚ´¦Àí´óÊý¾ÝÁ¿µÄ¹Ø¼üÒµÎñʱ¡£
¡¡¡¡Oracle
......