July 8th, 2008 by onlyring
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从一个数组表(table array)也就是一块选定区域的第一列查找某个值，返回该数组表中同一行中指定列值。
Syntax
VLOOKUP(lookup_value,table_array,col_index_num,range_lookup)
Lookup_value
在数组表第一列要匹配的值，这个值也可以是引用。
Table_aray
两行或者多行数据列。
Col_index_num
指定返回列值。
Range_loopup
指定匹配方式的逻辑值：TRUE 或FALSE
TRUE:精确匹配(exact match)
FALSE:模糊匹配(approximate match)
参考：
http://office.microsoft.com/en-us/excel/HP052093351033.aspx
http://www.excel-tutorials.org
http://www.auditexcel.co.za/vlookup.html
Popularity: 39% [?]
July 6th, 2008 by onlyring
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Two methods for managing undo data exists
-Automatic Undo Management(The recommended method from 9i)
-Manual Undo Management(The only method available prior to Oracle9i)
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July 5th, 2008 by onlyring
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1.Type of segments
Segments are space-occupying objects in a database.
Table
The most common means of storing data within a database.
Data within a table segment is stored in on particular order,and the DBA has little control
over the location of rows within the blocks in a table.
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July 1st, 2008 by ring
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这几天心情非常不好,有时候我在怀疑,我这样固执的选择是不是真的错了?或者生活就是这样,人和人之间就是这样.什么诺言,什么保证,什么真心,可能都只是随便说说罢了.有人让我天天看博客,我看了,可是说的人还不知道看了没有呢.天真……无聊……
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June 29th, 2008 by onlyring
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–做了一件很后悔的事情，把重要的日子给忘记了！
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