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How to find duplicates in 2 columns not 1
...e of
their InnoDB fast index creation feature [http://bugs.mysql.com/bug.php?id=40344]. In this case
first run set session old_alter_table=1 and then the above command
will work fine
Update - ALTER IGNORE Removed In 5.7
From the docs
As of MySQL 5.6.17, the IGNORE clause is deprecated ...
.NET obfuscation tools/strategy [closed]
...ion" is removed with mouse click: woodmann.com/collaborative/tools/index.php/Dumbassembly
– Elmue
Mar 6 '14 at 3:37
2
...
Event system in Python
... limited interface, but higher performance".
pyeventdispatcher is based on PHP's Symfony framework's event-dispatcher.
dispatcher was extracted from django.dispatch but is getting fairly old.
Cristian Garcia's EventManger is a really short implementation.
Others:
pluggy contains a hook system whic...
ie8 var w= window.open() - “Message: Invalid argument.”
...ng the following code its working...
onclick="window.open('privacy_policy.php','','width=1200,height=800,scrollbars=yes');
Previously i Entered like
onclick="window.open('privacy_policy.php','Window title','width=1200,height=800,scrollbars=yes');
Means Microsoft does not allow you to enter win...
Is MVC a Design Pattern or Architectural pattern
...aBeans ( Model ), Servlet ( controller ). Same concept with all the famous php framework ( symphony, zend, cake etc. ). But nowaday frontend frameworks looks like back end application and modern javascript frameworks use mvc ( html your view, controller your script, and model your js objects as en...
How to mark a build unstable in Jenkins when running shell scripts
...ute different tasks. Some are sh/bash scripts that run rsync, and some are PHP scripts. One of the PHP scripts is running some integration tests that output to JUnit XML, code coverage reports, and similar.
...
difference between variables inside and outside of __init__()
...s if you don't create them in __init__().
– too much php
Oct 8 '09 at 11:43
3
@too much php: All ...
What is copy-on-write?
...
I found this good article about zval in PHP, which mentioned COW too:
Copy On Write (abbreviated as ‘COW’) is a trick designed to save memory. It is used more generally in software engineering. It means that PHP will copy the memory (or allocate new memory ...
微软VS苹果 桌面操作系统的终极一战 - 创意 - 清泛网 - 专注C/C++及内核技术
...费，如果不免费那么销售版本的价格又是多少，对于这些问题，微软一直也没跟大家交个底。很显然，作为公司利润超过20%，为公司带来的收益仅此于Office的Windows，微软压根就没打算停止从其获取更高的利益。只是在通往更高...
What is the difference between square brackets and parentheses in a regex?
...uestion uses keyword var in code, this probably is JavaScript). The use of php which runs on PCRE for preg matching will optimize away the lack of backtracking, however we're not in PHP either, so using classes [] instead of alternations | gives performance bonus as the match does not backtrack, and...