November 26, 2001 Optimizing MySQL: Queries and indexes By Ian Gilfillan You know the scene. The database is just too slow. Queries are queuing up, backlogs growing, users being refused connection. Management is ready to spend millions on "upgrading" to some other system, when the problem is really that MySQL is simply not being used properly. Badly defined or non-existent indexes are one of the...

请教一个问题！ 做了一个WEB服务器 内网192.168.1.X访问时，可以看目录列表 外网202.99.96.X访问时，看不到目录列表 这个设置是不是可以实现？

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When MySQL uses indexes Using >, >=, =, SELECT * FROM table_name WHERE key_part1=1 and key_part2 > 5; SELECT * FROM table_name WHERE key_part1 IS NULL; When you use a LIKE that doesn't start with a wildcard. SELECT * FROM table_name WHERE key_part1 LIKE 'jani%' Retrieving rows from other tables when performing joins. SELECT * from t1,t2 where t1.col=t2.key_part Find the MAX() or MIN() val...

Can anyone tell me what is the different between index and type-2 indexes and how to create Type-2 indexes ? [ 本帖最后由 toms1981 于 2006-3-1 22:37 编辑 ]

indexes关掉了还能目录LIST 何解

我在安装IPB程序时,出现这样的错误:mySQL错误: The used table type doesn't support FULLTEXT indexes 然后到网上搜索,得到的是: Error: 1214 SQLSTATE: HY000 (ER_TABLE_CANT_HANDLE_FT) Message: The used table type doesn't support FULLTEXT indexes 不过还是找不到解决的办法.请各位帮指点一下. 我用的mysql版本为:5.0.4-bata-win

Apache中目录的Option设置为indexes后，文件和文件夹将列表出来，其中有一项是‘描述’Description的，这个属性可以对文件进行一些描述，但是如何赋值呢？

执行db2 describe indexes for table命令，但输出格式很乱，哪位大侠知道如何修改输出格式？ 多谢！

来自: Linux联盟收集整理 现象：创建Bitmap Join indexes时出现ORA-25954报错: 维的主键或唯一约束条件缺失。 原因：受到约束与索引的影响。 测试过程如下： create table sales as select * from sh.sales； create table customers as select * from sh.customers； create unique index CUST_ID_un on customers(CUST_ID); 创建： Bitmap Join indexes create bitmap index sales_cust_gender_bjix on sales(c...