大约有 30,000 项符合查询结果（耗时：0.0499秒） [XML]
ORDER BY the IN value list
...a simple SQL query in PostgreSQL 8.3 that grabs a bunch of comments. I provide a sorted list of values to the IN construct in the WHERE clause:
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Specify custom Date format for colClasses argument in read.table/read.csv
... The warning is harmless and everything still works, but setting the class means that you don't even see the warning.
– Greg Snow
Aug 30 '13 at 17:47
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What does !! mean in ruby?
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! means negate boolean state, two !s is nothing special, other than a double negation.
!true == false
# => true
It is commonly used to force a method to return a boolean. It will detect any kind of truthiness, such as str...
How can I ignore a property when serializing using the DataContractSerializer?
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what did you mean by "decorated your class" pls explain ?
– alamin
Nov 1 '15 at 4:05
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How do I find if a string starts with another string in Ruby?
...ng on the left starts with 'abc'. The \A in the regex literal on the right means 'the beginning of the string'. Have a play with rubular - it will become clear how things work.
'abcdefg' =~ /\Aabc/
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Eclipse: How do you change the highlight color of the currently selected method/expression?
...the regular TEXT Editor area instead of the Java Editor settings, the term means something entirely different. Anyway, the Eclipse guys need to change this setting's color to Orange by default, looking at the votes here it's obvious there's a number of people who hate the low contrast default...
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Stop Mongoose from creating _id property for sub-document array items
If you have subdocument arrays, Mongoose automatically creates ids for each one. Example:
6 Answers
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Get img thumbnails from Vimeo?
I want to get a thumbnail image for videos from Vimeo.
23 Answers
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C# Xml中SelectSingleNode方法中的xpath用法（Xml节点操作最佳方式） - 更...
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objNodeList = objDoc.SelectNodes("Company/Department/Employees/Employee/@id")
objNodeList = objDoc.SelectNodes("Company//@id")
2.5 查询Text节点
使用text()来获取Text节点。
objNode = objDoc.SelectSingleNode("Company/Department/Deparmt_Name/text()")
2.6 查询特定条件...
C# Xml中SelectSingleNode方法中的xpath用法（Xml节点操作最佳方式） - 更...
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objNodeList = objDoc.SelectNodes("Company/Department/Employees/Employee/@id")
objNodeList = objDoc.SelectNodes("Company//@id")
2.5 查询Text节点
使用text()来获取Text节点。
objNode = objDoc.SelectSingleNode("Company/Department/Deparmt_Name/text()")
2.6 查询特定条件...