本来不想告诉大家的，因为采集别人网站不是什么光彩事，但觉得这个技巧实在是够强，要不是这简短的一行代码，我还不累死了。是这样的，采集了一些别人的文章，可能是采集程序的问题，每篇文章的标题里都多出了一些字符 img src=images/awwor.gif 导致在生成H
本来不想告诉大家的，因为采集别人网站不是什么光彩事，但觉得这个技巧实在是够强，要不是这简短的一行代码，我还不累死了。是这样的，采集了一些别人的文章，可能是采集程序的问题，每篇文章的标题里都多出了一些字符 
导致在生成HTML网页后很多内容不显示，但是看了看记录有2000多条，一条一条改，还不累死我啊。于是请教了一个SQL高手，发我一行SQL语句：
update `article` set title=replace(title,' ','');
执行完什么也没见到，可我看了一下数据库，哇塞!!真爽了，全部都不见了，觉得这个语句真够猛的，也怪自己不懂SQL竟然有如此用法啊，以后要多多研究sql了,事半功倍啊。所以不敢独享本经验，特此与大家分享。另外报告，俺现在已经不搞采集了，，就像做人一样老实做站，期待大家的站也有好收成。顺便说下这行代码的含义：
update '表名(比如我的article)' set 要修改的字段名 = replace (要修改的字段名,'被替换的字符','替换后的字符')
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The Ultimate Guide to MySQL String Data Types: Efficient Data StorageMay 12, 2025 am 12:05 AMTostorestringsefficientlyinMySQL,choosetherightdatatypebasedonyourneeds:1)UseCHARforfixed-lengthstringslikecountrycodes.2)UseVARCHARforvariable-lengthstringslikenames.3)UseTEXTforlong-formtextcontent.4)UseBLOBforbinarydatalikeimages.Considerstorageov
MySQL BLOB vs. TEXT: Choosing the Right Data Type for Large ObjectsMay 11, 2025 am 12:13 AMWhen selecting MySQL's BLOB and TEXT data types, BLOB is suitable for storing binary data, and TEXT is suitable for storing text data. 1) BLOB is suitable for binary data such as pictures and audio, 2) TEXT is suitable for text data such as articles and comments. When choosing, data properties and performance optimization must be considered.
MySQL: Should I use root user for my product?May 11, 2025 am 12:11 AMNo,youshouldnotusetherootuserinMySQLforyourproduct.Instead,createspecificuserswithlimitedprivilegestoenhancesecurityandperformance:1)Createanewuserwithastrongpassword,2)Grantonlynecessarypermissionstothisuser,3)Regularlyreviewandupdateuserpermissions
MySQL String Data Types Explained: Choosing the Right Type for Your DataMay 11, 2025 am 12:10 AMMySQLstringdatatypesshouldbechosenbasedondatacharacteristicsandusecases:1)UseCHARforfixed-lengthstringslikecountrycodes.2)UseVARCHARforvariable-lengthstringslikenames.3)UseBINARYorVARBINARYforbinarydatalikecryptographickeys.4)UseBLOBorTEXTforlargeuns
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