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Dropping Unique constraint from MySQL table
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352
A unique constraint is also an index.
First use SHOW INDEX FROM tbl_name to find out the nam...
How to get numbers after decimal point?
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31
Exercise for the reader: make it work for numbers larger than or equal to 10
– intuited
Jan 6 '13 at...
Auto margins don't center image in page
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edited Apr 20 '11 at 17:32
answered Apr 20 '11 at 17:24
R...
How to implement infinity in Java?
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23
I avoid using float whenever possible as its precision is pretty poor. ;)
– Peter Lawrey
Oct 18 '12 a...
Memcached vs. Redis? [closed]
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Summary (TL;DR)
Updated June 3rd, 2017
Redis is more powerful, more popular, and better supported than memcached. Memcached can only do a small fraction of the things Redis can do. Redis is better even where their features overlap.
For anything new, use ...
Where to place AutoMapper.CreateMaps?
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wonea
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answered Jul 26 '11 at 4:51
RPM1984RPM1984
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How to find Unused Amazon EC2 Security groups
...are the 2 lists and see what's not being used from the master list:
comm -23 <(aws ec2 describe-security-groups --query 'SecurityGroups[*].GroupId' --output text | tr '\t' '\n'| sort) <(aws ec2 describe-instances --query 'Reservations[*].Instances[*].SecurityGroups[*].GroupId' --output text ...
Function to calculate distance between two coordinates
...cording to Google Maps, the distance between these coordinates (from 59.3293371,13.4877472 to 59.3225525,13.4619422 ) are 2.2 kilometres while the function returns 1.6 kilometres. How can I make this function return the correct distance?
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How to include PHP files that require an absolute path?
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edited May 23 '17 at 11:47
Community♦
111 silver badge
answered Aug 7 '08 at 4:20
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How to remove the URL from the printing page?
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edited May 23 '17 at 12:18
Community♦
111 silver badge
answered Feb 20 '13 at 9:05
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