大约有 800 项符合查询结果（耗时：0.0254秒） [XML]
MySQL check if a table exists without throwing an exception
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If you're using MySQL 5.0 and later, you could try:
SELECT COUNT(*)
FROM information_schema.tables
WHERE table_schema = '[database name]'
AND table_name = '[table name]';
Any results indicate the table exists.
From: http://www.electrictoolbo...
iPhone UIView Animation Best Practice
...(afterAnimationProceedWithGame)];
// [UIView setAnimationRepeatCount:5.0]; // don't forget you can repeat an animation
// [UIView setAnimationDelay:0.50];
// [UIView setAnimationRepeatAutoreverses:YES];
gameView.alpha = 1.0;
topGameView.alpha = 1.0;
viewrect1...
Light weight alternative to Hibernate? [closed]
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Version 5.0 was released in June 2016.
– Lauri Laanti
Aug 18 '16 at 14:21
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Split string in Lua?
... split(pString, pPattern)
local Table = {} -- NOTE: use {n = 0} in Lua-5.0
local fpat = "(.-)" .. pPattern
local last_end = 1
local s, e, cap = pString:find(fpat, 1)
while s do
if s ~= 1 or cap ~= "" then
table.insert(Table,cap)
end
last_end = e+1
s, e, c...
UIScrollView not scrolling
...ontent size
I have not found a way to set contentSize in IB (as of Xcode 5.0).
Note:
If you are using Autolayout the best place to put this code is inside the -(void)viewDidLayoutSubviews method .
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What does .class mean in Java?
...ype void, followed by a '.' and the token class.
One of the changes in JDK 5.0 is that the class java.lang.Class is generic, java.lang.Class Class<T>, therefore:
Class<Print> p = Print.class;
References here:
https://docs.oracle.com/javase/7/docs/api/java/lang/Class.html
http://doc...
What's the foolproof way to tell which version(s) of .NET are installed on a production Windows Serv
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User Agent string from the provided URL: Mozilla/5.0 (compatible; MSIE 10.0; Windows NT 6.1; WOW64; Trident/6.0). Bu-ga-ga, so, what .NET Framework versions are installed? To achieve expected result need to switch IE to compatible mode.
– Mosc
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Combine two ActiveRecord::Relation objects
... added to ActiveRecord::Relation on Jan 2015, and it will be part of Rails 5.0, which will ship in late 2015. It allows use of the OR operator to combine WHERE or HAVING clauses. You can checkout HEAD if you need it prior the official release. See Merge Pull Request #16052 @Arcolye @AndrewMarshall @...
How do I get the current line number?
..., which we generally do not generate/copy to production server. try with C#5.0 Caller* attribute.
– Deepak Sharma
Oct 7 '15 at 6:30
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How to test which port MySQL is running on and whether it can be connected to?
...er TCP/IP. Check out the MySQL docs.
See http://dev.mysql.com/doc/refman/5.0/en/connector-j-reference-configuration-properties.html
UPDATE:
I tried to telnet into MySQL (telnet ip 3306), but it doesn't work:
http://lists.mysql.com/win32/253
I think this is what you had in mind.
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