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What is Rack middleware?
...mment about it being a way to filter requests probably comes from the RailsCast episode 151: Rack Middleware screen cast.
Rack middleware evolved out of Rack and there is a great intro at Introduction to Rack middleware.
There's an intro to middleware on Wikipedia here.
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Select tableview row programmatically
How do I programmatically select a UITableView row so that
7 Answers
7
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MySQL combine two columns into one column
...does not start with a digit, then the converted value is 0.
So try this:
select concat(column1, column2)
Two ways to add a space:
select concat(column1, ' ', column2)
select concat_ws(' ', column1, column2)
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mysql query order by multiple items
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SELECT some_cols
FROM prefix_users
WHERE (some conditions)
ORDER BY pic_set DESC, last_activity;
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Set selected item of spinner programmatically
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Use the following:
spinnerObject.setSelection(INDEX_OF_CATEGORY2).
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Types in MySQL: BigInt(20) vs Int(20)
...E TABLE foo ( bar INT(20) ZEROFILL );
INSERT INTO foo (bar) VALUES (1234);
SELECT bar from foo;
+----------------------+
| bar |
+----------------------+
| 00000000000000001234 |
+----------------------+
It's a common source of confusion for MySQL users to see INT(20) and assume ...
Sql Server 'Saving changes is not permitted' error ► Prevent saving changes that require table re-cr
...ck Options, expand
Designers, and then click Table and Database Designers.
Select or clear the Prevent saving changes that require the table to be
re-created check box.
See Also
Colt Kwong Blog Entry:
Saving changes is not permitted in SQL 2008 Management Studio
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How to have jQuery restrict file types on upload?
...to set the upload button to disabled unless and until a valid file type is selected.
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SQL SERVER: Get total days between two dates
...:09.3312722';
DECLARE @enddate datetime2 = '2009-05-04 12:10:09.3312722';
SELECT DATEDIFF(day, @startdate, @enddate);
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How do I install a NuGet package into the second project in a solution?
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The selected one in the dropdown
– davidfowl
Aug 31 '15 at 16:39
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