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How can I query a value in SQL Server XML column

... select Roles from MyTable where Roles.value('(/root/role)[1]', 'varchar(max)') like 'StringToSearchFor' These pages will show you more about how to query XML in T-SQL: Querying XML fields using t-sql Flattening XML Data in SQL Server EDIT After playing with it a little bit more, I ...
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汇编常用寄存器及指令基础总结 - C/C++ - 清泛网 - 专注C/C++及内核技术

...较、算术或逻辑运算的指令)执行时,会将相关标志位置1或清0, 常碰到的标志位有零标志(ZF)、符号标志(SF)、溢出标志(OF)和进位标志(CF) 当一个程序要执行时,就要决定程序代码、数据和堆栈各要用到内存的哪...
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How can I force division to be floating point? Division keeps rounding down to 0?

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In MySQL, can I copy one row to insert into the same table?

... 190 I used Leonard Challis's technique with a few changes: CREATE TEMPORARY TABLE tmptable_1 SELE...
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Convert the values in a column into row names in an existing data frame

... 138 This should do: samp2 <- samp[,-1] rownames(samp2) <- samp[,1] So in short, no there ...
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How to set environment variables in Python?

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PostgreSQL Autoincrement

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How do I check if an array includes a value in JavaScript?

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Equivalent of Math.Min & Math.Max for Dates?

...en create a new DateTime value from the result: new DateTime(Math.Min(Date1.Ticks, Date2.Ticks)) (Note that the DateTime structure also contains a Kind property, that is not retained in the new value. This is normally not a problem; if you compare DateTime values of different kinds the comparison...
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How to model type-safe enum types?

... 189 http://www.scala-lang.org/docu/files/api/scala/Enumeration.html Example use object Main ex...