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Is there still any reason to learn AWK?
...is a wonderful example of friendly technical writing done right. Even the index is a piece of craftsmanship.
Awk? If you know it, you'll use it at the command-line occasionally, but for anything larger you'll feel trapped, unable to access the wider features of your system and the Internet that s...
How to scale threads according to CPU cores?
...ore references:
http://www.ibm.com/developerworks/java/library/j-jtp11137/index.html
Article by Brian Goetz
http://www.oracle.com/technetwork/articles/java/fork-join-422606.html
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You can't specify target table for update in FROM clause
...e the query can be very slow; try to create temporary/second table with an index/primary key [see dev.mysql.com/doc/refman/5.1/en/create-table-select.html ]
– Alex
Feb 11 '13 at 9:25
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iPhone Debugging: How to resolve 'failed to get the task for process'?
... are currently using.
https://developer.apple.com/library/ios/#qa/qa1682/_index.html
For instant results, delete all mobile provisioning profiles from xcode and install the developer profile that you intend to use.
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Search text in fields in every table of a MySQL database
...F YOU DONT KNOW WHAT YOU ARE DOING
# YOU SHOULD KNOW IF YOU HAVE FULL TEXT INDEX ON OR NOT
# MISUSE AND YOU COULD CRASH A LARGE SERVER
SELECT
CONCAT('SELECT CONVERT(',A.COLUMN_NAME, ' USING utf8) FROM ', A.TABLE_SCHEMA, '.', A.TABLE_NAME,
' WHERE CONVERT(',A.COLUMN_NAME, ' USING utf...
Move the mouse pointer to a specific position?
... the w3 spec for pointer lock: dvcs.w3.org/hg/pointerlock/raw-file/default/index.html
– Chris Anderson
Jan 30 '15 at 2:10
51
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Python idiom to return first item or None
...it like:
next((x for x in blah if cond), None)
Pro: works if blah isn't indexable Con: it's unfamiliar syntax. It's useful while hacking around and filtering stuff in ipython though.
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How do I find the MySQL my.cnf location
... And updatedb to update the list locate goes through - if my.cnf wasn't indexed
– WoodyDRN
May 3 '17 at 22:15
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Quickly create large file on a Windows system
...
Check out RDFC http://www.bertel.de/software/rdfc/index-en.html
RDFC is probably not the fastest, but it does allocate data blocks. The absolutely fastest would have to use lower level API to just obtain cluster chains and put them into MFT without writing data.
Beware th...
Can PHP PDO Statements accept the table or column name as parameter?
...query plan for how it would execute that query, including which tables and indexes it would use, which will be the same regardless of how you fill in the placeholders.
The plan for SELECT name FROM my_table WHERE id = :value will be the same whatever you substitute for :value, but the seemingly sim...