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Update a value in MongoDB based on its current value

I want to do something like开发者_StackOverflow社区 this, but the this keyword doesn\'t seem to be set inside the update statement.[详细]

2022-12-23 06:24 分类：问答
double in scheme

How to write a program in scheme that takes an arbitrary sexpression consisting of integers and which returns an sexpression that is identical to[详细]

2022-12-21 10:52 分类：问答
Beginner Url Rewrite htaccess

I would simply like to rewrite all requests from: http://example.com/products/product.cfm?id=product-name[详细]

2022-12-21 02:21 分类：问答
四川师范大学是985大学还是211大学？

都不是。从全国985、211高校名单来看，四川师范大学既不是211，也不是985。目前四川共有5所211高校和2所985高校，教育部门不再受理211和985高校的申请。[详细]

2022-12-20 07:02 分类：问答
Select next rows that have ID.length > 0 in a table

Using only jQuery, how would I select the next rows in a table with an ID length > 0? In my code, I\'m using a hybrid of jQuery and javascript. And it works fine. However, I\'d like it to be all in j[详细]

2022-12-18 20:47 分类：问答
Hadoop searching words from one file in another file

I want to build a hadoop application which can read words from one file and search in another file. If the word exists - it has to write to o开发者_运维百科ne output file[详细]

2022-12-18 03:57 分类：问答
怀孕初期怎么从白带颜色判断生男生女?？

目前我处于怀孕初期。自从我怀孕后，我特别想知道宝开发者_运维知识库宝是男是女。但是去医院检查的时候问了医生，医生说现在说还太早，只好作罢。不过最近有网友说，可以根据孕早期白带的颜色判断是男是女。请问大[详细]

2022-12-17 23:04 分类：问答
Application Design - Database Tables and Interfaces

I have a database with tables for each entity in the system.e.g. PersonTable has columns PersonId, Name, HomeStateId.There is also a table for \'reference data\' (i.e. states, countries, all currencie[详细]

2022-12-17 04:15 分类：问答
四川师范大学是211还是985大学？

四川师范大学既不是211工程大学，也不是985工程大学。四川师范大学成立于1946年，位于四川省成都市。是国家“中西部高校基础能力建设工程”重点建设高校之一。是四川省师范院校中本科师范教育最早、办学历史最长的省[详细]

2022-12-15 14:11 分类：问答