If you use databases on a daily basis, but SQL isn't your strong suit, read the Art of SQL. It's a well-written, practical guide to getting the most out of a database.
如果您每天使用数据库，但是不熟悉SQL，那么请阅读The Art of SQL，这本书写得很好，实践性也很强，可以指导您基本了解数据库。
Grant Fritchey’s book, The Art of High Performance SQL Code: Part 1 Dissecting SQL Server Execution Plans, helps you get to that point.
GrantFritchey的书：编写高性能SQL代码的艺术的第一部分就详述了SQLServer的执行计划，这对你会很有帮助。
The developerWorks tutorial "Locking down your PHP applications" (see Resources) talks about SQL injections: the art of sending malformed data to a database to cause harm or unwarranted access.
developerWorks教程 “锁定您的PHP应用程序”（请参阅参考资料）讨论了SQL注射：将不正常的数据发送到数据库可导致有害或无根据的访问。
The developerWorks tutorial "Locking down your PHP applications" (see Resources) talks about SQL injections: the art of sending malformed data to a database to cause harm or unwarranted access.
developerWorks教程 “锁定您的PHP应用程序”（请参阅参考资料）讨论了SQL注射：将不正常的数据发送到数据库可导致有害或无根据的访问。
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