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MySQL InnoDB not releasing disk space after deleting data rows from table
... recreate your table and regain diskspace
Create TBL_B like TBL_A . Insert select data you want to keep from TBL_A into TBL_B. Drop TBL_A, and rename TBL_B to TBL_A. This way is very effective if TBL_A and data that needed to delete is big (delete command in MySQL innodb is very bad performance)
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Things possible in IntelliJ that aren't possible in Eclipse?
...uctors SimpleTimeZone has.
After Enter in Eclipse
I get the previously selected constructor filled with predefined variable names. And I can see the type of every argument. With Code Recommanders Eclipse guesses the right constructor by the previously defined variable types in the current scope ...
How to run only one task in ansible playbook?
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Yes, there is. To be specific, one way to selectively run plays now is by "tagging" the plays. There may be OTHER ways to limit the plays also; I am still learning...
– Scott Prive
May 2 '19 at 1:55
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Given final block not properly padded
...erivation in a defined manner (and a manner which is deemed secure, if you select the right algorithm).
Don't use ECB-mode. It encrypts each block independently, which means that identical plain text blocks also give always identical ciphertext blocks.
Preferably use a secure mode of operation, lik...
What is the difference between public, protected, package-private and private in Java?
... friends -> "The less you know about it the better" ---> It gives selective visibility, which is still superior to package privacy. In C++, it has its uses, because not all functions can be member functions, and friends is better than public'ing. Of course there is a danger of misuse by evi...
How do I use CSS in Django?
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Just a quick note on those Django docs - make sure you select the documents for the version of Django you're using. Things appear to have changed a lot between versions with regard to static files.
– Sam Starling
Nov 3 '10 at 11:09
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Create a nonclustered non-unique index within the CREATE TABLE statement with SQL Server
...s a separate statement.
It's also not possible to insert into a table and select from it and build an index in the same statement either.
The BOL entry contains the information you need:
CLUSTERED | NONCLUSTERED
Indicate that
a clustered or a nonclustered index is
created for the PRIMARY...
Why is 'false' used after this simple addEventListener function?
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This must be the selected answer. OP can you please do that ?
– Saurabh Tiwari
Jun 3 '18 at 12:21
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Bootstrap combining rows (rowspan)
... a row doesn't have to use row-fluid to accomplish this as suggested by my selected answer. I really appreciate it though!
– Seong Lee
May 3 '13 at 5:36
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Is there a CSS selector by class prefix?
...ble with CSS2.1, but it is possible with CSS3 attribute substring-matching selectors (which are supported in IE7+):
div[class^="status-"], div[class*=" status-"]
Notice the space character in the second attribute selector. This picks up div elements whose class attribute meets either of these con...