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SQL Server : Columns to Rows
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You can use the UNPIVOT function to convert the columns into rows:
select id, entityId,
indicatorname,
indicatorvalue
from yourtable
unpivot
(
indicatorvalue
for indicatorname in (Indicator1, Indicator2, Indicator3)
) unpiv;
Note, the datatypes of the columns you are unpivoting mus...
How to fix: “No suitable driver found for jdbc:mysql://localhost/dbname” error when using pools? [du
...sspath tab set the mysql connector/j jar location.
or
Server Location > select option which says "Use Tomcat installation (take control of Tomcat installation)"
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Define variable to use with IN operator (T-SQL)
... VALUES (2)
INSERT INTO @MyList VALUES (3)
INSERT INTO @MyList VALUES (4)
SELECT *
FROM MyTable
WHERE MyColumn IN (SELECT Value FROM @MyList)
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Does Python have an ordered set?
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I selected my own answer because the reference from the documentation makes this close to an official answer
– Casebash
Dec 10 '10 at 0:59
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App Inventor 2 人脸识别App开发 - 第三方API接入的通用方法 · App Inventor 2 中文网
...建一个应用以获得API调用时必要的api_key及api_secret。
如何理解api_key及api_secret:可以类比为 API Key是用户ID(用于标识用户),Secret Key是密码(用于鉴权)。“你需要两个不同的密钥,一个告诉他们你是谁,另一个证明你就是...
MIT已发布v2.76版本:支持iOS编译,苹果版App终于来了,中文网已完成升级!...
...果iOS编译及上架App Store。(beta版公测中)
详细请查阅《如何使用 App Inventor 构建 iOS 应用》
全新的颜色选择器、新增日志控制台。
记录3种级别(错误、警告、信息)的日志,参考测试结果:
-------------------------MIT-...
PHPMyAdmin Default login password [closed]
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If you are using AMPPS, the pass is mysql
– Cheborra
Aug 2 '14 at 2:43
2
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常用Git命令汇总 - 开源 & Github - 清泛网 - 专注C/C++及内核技术
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#改变暂存区的修改(其实是重置HEAD,将指定版本库的内容状态去覆盖暂存区,从而达到暂存区的改变)
git reset <file> #从暂存区恢复到工作区(不指定版本id,则默认为最后一次提交的版本id)
git r...
mysql blob大小配置介绍 - 数据库(内核) - 清泛网 - 专注C/C++及内核技术
...理器(如数据库管理器)不去理会文件是什么,而是关心如何去处理它。但也有专家强调,这种处理大数据对象的方法是把双刃剑,它有可能引发一些问题,如存储的二进制文件过大,会使数据库的性能下降。在数据库中存放体...
Join vs. sub-query
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@JinghuiNiu Customers who bought expensive items: select custid from cust join bought using (custid) where price > 500. If a customer bought multiple expensive items, you'll get double-ups. To fix this, select custid from cust where exists (select * from bought where cust...
