大约有 45,000 项符合查询结果(耗时:0.0396秒) [XML]
Why all the Active Record hate? [closed]
...need to write raw SQL, it's easily done.
@Tim Sullivan
...and you select several instances of the model, you're basically doing a "select * from ..."
Code:
people = Person.find(:all, :select=>'name, id')
This will only select the name and ID columns from the database, all the other ...
How should I use Outlook to send code snippets?
...
If you are using Outlook 2010, you can define your own style and select your formatting you want, in the Format options there is one option for Language, here you can specify the language and specify whether you want spell checker to ignore the text with this style.
With this style you ca...
Google Docs/Drive - number the headings
...a blank project
Paste the the code below and save with your preffered name
Select Run > onOpen and authorize the script for the first time
Select Run > onOpen
Change to your Document and try the functions on the Headings tools custom menu created.
~~Disclaimer: you may have issues with empty...
QLabel: set color of text and background
...nd-color :"+colcode+" ; color : blue; }");
getColor() method returns the selected color.
You can change label color using stylesheet
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How to correctly display .csv files within Excel 2013?
... to DATA tab.
Click button From Text in the General External Data section.
Select your CSV file.
Follow the Text Import Wizard. (in step 2, select the delimiter of your text)
http://blogmines.com/blog/how-to-import-text-file-in-excel-2013/
...
How do I set the size of Emacs' window?
... got the following in my .emacs:
(if (window-system)
(set-frame-height (selected-frame) 60))
You might also look at the functions set-frame-size, set-frame-position, and set-frame-width. Use C-h f (aka M-x describe-function) to bring up detailed documentation.
I'm not sure if there's a way to ...
In MySQL queries, why use join instead of where?
...FROM clause
Write the association between the tables in the WHERE clause
SELECT *
FROM TABLE_A a,
TABLE_B b
WHERE a.id = b.id
Here's the query re-written using ANSI-92 JOIN syntax:
SELECT *
FROM TABLE_A a
JOIN TABLE_B b ON b.id = a.id
From a Performance Perspective:
Where su...
“Incorrect string value” when trying to insert UTF-8 into MySQL via JDBC?
...
The second approach should be used selectively, i. e. never be applied to SELECT queries, as set names utf8mb4; select ... from ... will never produce a ResultSet and instead result in a ResultSet is from UPDATE. No Data. error.
– Bass
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Retrieving the COM class factory for component with CLSID {XXXX} failed due to the following error:
...t X86.
You can also configure the iis options to work with x86 like that
Select Application pool
Select the pool which your app uses
Advanced settings
Enable 32 bit applications true
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Importing CommonCrypto in a Swift framework
...code.app path which can vary system-to-system, especially if you use xcode-select to switch to a beta version, or are building on a CI server where multiple versions are installed in non-standard locations. You also don't need to hard code the SDK so this should work for iOS, macOS, etc. You also do...
