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Fastest way to count exact number of rows in a very large table?
I have come across articles that state that SELECT COUNT(*) FROM TABLE_NAME will be slow when the table has lots of rows and lots of columns.
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Get application version name using adb
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Assembly code vs Machine code vs Object code?
What is the difference between object code, machine code and assembly code?
10 Answers
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How can I apply styles to multiple classes at once?
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Why use argparse rather than optparse?
...ture.
argparse is better for all the reasons listed on its original page (https://code.google.com/archive/p/argparse/):
handling positional arguments
supporting sub-commands
allowing alternative option prefixes like + and /
handling zero-or-more and one-or-more style arguments
producing more info...
JQuery find first parent element with specific class prefix
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Why does Java's hashCode() in String use 31 as a multiplier?
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You can read Bloch's original reasoning under "Comments" in http://bugs.java.com/bugdatabase/view_bug.do?bug_id=4045622. He investigated the performance of different hash functions in regards to the resulting "average chain size" in a hash table. P(31) was one of the common functions ...
Remove an element from a Bash array
I need to remove an element from an array in bash shell.
Generally I'd simply do:
20 Answers
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How to delete an app from iTunesConnect / App Store Connect
I submitted a brand new app to AppStore and it got rejected by the Lords ... (nothing new there). What I want to do is delete that app completely from my itunesconnect account. I don't know what apple recently changed but in the past once the app was rejected I use to see a "delete" button on the su...