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ORACLE,SQLSERVER等数据库如何获取某张表中相同字段最近一条数
SELECT * FROM ( SELECT JBXX.*,row_number() OVER (partition BY WRYMC ORDER BY WRYMC,CJSJ DESC) R   FROM T_WRY_JBXX  JBXX  ) A WHERE R=1...
分类:数据库   时间:2014-09-13 20:12:05    阅读次数:211
Add Two Numbers
You are given two linked lists representing two non-negative numbers. The digits are stored in reverse order and each of their nodes contain a single ...
分类:其他好文   时间:2014-09-13 20:00:35    阅读次数:207
常用sqlserver 语句命令
常用sqlserver 语句命令 SELECT SERVERPROPERTY('Edition') SELECT @@VERSION USE master SELECT dbid, DB_NAME(dbid) AS DB_NAME FROM sysdatabases ORDER BY dbid GO...
分类:数据库   时间:2014-09-13 18:47:05    阅读次数:195
Matrix Chain Multiplication (UVa 442)
Suppose you have to evaluate an expression like A*B*C*D*E where A,B,C,D and E are matrices.Since matrix multiplication is associative, the order in which multiplications are performed isarbitrary. How...
分类:其他好文   时间:2014-09-13 09:26:28    阅读次数:210
除非另外还指定了 TOP 或 FOR XML,否则,ORDER BY 子句在视图、内联函数、派生表、子查询
top 100 percent...
分类:其他好文   时间:2014-09-12 15:06:33    阅读次数:156
SQL学习备忘
1.按照拼音首字母的正序或倒序排序1 SELECT2 CREATOR_REALNAME3 FROM4 tableName5 ORDER BY NLSSORT(CREATOR_REALNAME, 'NLS_SORT = SCHINESE_PINYIN_M') desc拼音排序参考:nl...
分类:数据库   时间:2014-09-12 13:15:03    阅读次数:201
Oracle Lead(),Lag()
Lead()就是取当前顺序的下一条记录,相对Lag()就是取当前顺序的上一行记录语法结构:lead(value_expr [,offset][,default]) over([query_partition_clause] order by Order_by_clause)参数说明:value_ex...
分类:数据库   时间:2014-09-12 11:25:43    阅读次数:251
【CMS】DedeCMS Error: (PHP 5.3 and above) Please set 'request_order' ini value to include C,G and P (recommended: 'CGP') in php.ini
DedeCMS Error: (PHP 5.3 and above) Please set 'request_order' ini value to include C,G and P (recommended: 'CGP') in php.ini修改php的配置文件php.inirequest_o...
分类:Web程序   时间:2014-09-12 01:09:52    阅读次数:215
【数据处理】各门店POS销售导入
--抓取西部POS数据DELETE FROM POSLSBFINSERT INTO POSLSBFselect * from [192.168.1.100].[SCMIS].DBO.possrlbf WHERE SLDAT>'20130101'ORDER BY 1INSERT INTO POSXBB...
分类:其他好文   时间:2014-09-11 20:56:12    阅读次数:252
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