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How to implement a many-to-many relationship in PostgreSQL?
...ables using serial primary key columns
Auto increment table column
https://www.2ndquadrant.com/en/blog/postgresql-10-identity-columns/
I highly recommend that, because the name of a product is hardly unique (not a good "natural key"). Also, enforcing uniqueness and referencing the column in foreign...
Escape a string for a sed replace pattern
...ows you to use other characters instead of / as separator:
sed 's#"http://www\.fubar\.com"#URL_FUBAR#g'
The double quotes are not a problem.
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Android Studio doesn't see device
...o fail to see my phone as a viable debugging device. I tried it on another computer running Android Studio and it worked fine. So there must be some other setting or maybe even a driver someplace that is causing this.
– James
Oct 3 '16 at 13:53
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Why can outer Java classes access inner class private members?
...is one is not the correct answer to this problem, here does: stackoverflow.com/questions/19747812/…
– Colin Su
Mar 28 '14 at 3:08
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How can I get `find` to ignore .svn directories?
I often use the find command to search through source code, delete files, whatever. Annoyingly, because Subversion stores duplicates of each file in its .svn/text-base/ directories my simple searches end up getting lots of duplicate results. For example, I want to recursively search for uint i...
How to delete all the rows in a table using Eloquent?
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Detecting superfluous #includes in C/C++?
...at don't need to be there and anymore. Leaving them there only prolong the compile time and adds unnecessary compilation dependencies. Trying to figure out which are still needed can be quite tedious.
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How to install a gem or update RubyGems if it fails with a permissions error
...r steps to try to fix the problem, but now when I do irb or ruby -v, I get command not found. What's going on and is there a fix" and this just adds more weight to why people shouldn't use sudo or chown. Sigh....
– the Tin Man
Mar 24 '14 at 15:41
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Inner join vs Where
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edited Jun 3 '09 at 22:01
George Stocker
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