================================================================== 2. HTTP load-balancing with cookie prefixing and high availability ============================================================
转载 精选 2010-11-09 11:08:18
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the input device is not a TTY. If you are using mintty, try prefixing the command with ‘winpty’
原创 2023-06-05 14:32:55
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The ALTER SESSION command provides another convenient way to save you the effort of prefixing objehema name, but without using synonyms. This is another “convenience” feature, ju
转载 2023-05-24 14:15:59
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9.1.3.3 Relocations Relocations for ‘MOVZ’ and ‘MOVK’ instructions can be generated by prefixing the label with ‘#:abs_g2:’ etc. For example to load t ...
转载 2021-10-04 22:03:00
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1、What is achieved by prefixing the 'static' keyword to a file-level function or file-level variable declaration? 使用static关键字修饰文件级的函数和变量起到什么作用? key:对变量来说,不允许文件外的程序访问;对函数来说,该函数的实现必须在这个文件内完成,并
转载 2024-08-27 10:48:15
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创建复合索引;CREATE INDEX [索引名称] ON [表名(列1,列2)]; --例子 CREATE INDEX name ON employee (emp_lname, emp_fname);1.复合索引: 前缀性(Prefixing)oracle索引,包括复合索引都是排序的.例如该复合索引在数据库索引树上是这样排序的,即先按省排序,再按市排序,最后按县排序:省  市
转载 2024-03-18 21:43:38
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1、What is achieved by prefixing the 'static' keyword to a file-level function or file-level variable declaration?使用static关键字修饰文件级的函数和变量起到什么作用?key:对变量来说,不允许文件外的程序访问;对函数来说,该函数的实现必须在这个文件内完成,并且不允许文件外的程序调用。2、Describe the difference between the“IS A”and“HAS A”object relationships. Which is the str
转载 2013-08-27 14:56:00
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1.普通索引  最基本的索引,没有任何限制  2.唯一索引  索引列的值必须唯一,但允许有空值  3.主键索引  主键索引属于一种特殊的唯一索引,不允许有空值  4.单列索引  单个多列索引(组合索引)效率高于多个单列索引  5.最左前缀(Leftmost Prefixing):多列索引 多列索引只有在whe