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Remove duplicate rows in MySQL
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A really easy way to do this is to add a UNIQUE index on the 3 columns. When you write the ALT...
How to handle a lost KeyStore password in Android?
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CSS table-cell equal width
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Here is a working fiddle with indeterminate number of cells: http://jsfiddle.net/r9yrM/1/
You c...
Why is my program slow when looping over exactly 8192 elements?
...ue from the following related questions:
Why is transposing a matrix of 512x512 much slower than transposing a matrix of 513x513?
Matrix multiplication: Small difference in matrix size, large difference in timings
But that's only because there's one other problem with the code.
Starting from th...
How to round a number to significant figures in Python
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You can use negative numbers to round integers:
>>> round(1234, -3)
1000.0
Thus if...
psycopg2: insert multiple rows with one query
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Get hours difference between two dates in Moment Js
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Best practices for in-app database migration for Sqlite
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I maintain an application that periodically needs to update a sqlite database and migrate old ...
How can I write output from a unit test?
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add created_at and updated_at fields to mongoose schemas
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