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How do you get the width and height of a multi-dimensional array?
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Convert SQLITE SQL dump file to POSTGRESQL
...that I was looking for a more automated method. I looked up the wiki docs:
https://wiki.postgresql.org/wiki/Converting_from_other_Databases_to_PostgreSQL
and discovered pgloader. Pretty cool application and it's relatively easy to use. You can convert the flat SQLite file into a usable PostgreSQL da...
Do AJAX requests retain PHP Session info?
...ference between an AJAX request and a regular page request. They are both HTTP requests, and they both contain cookie information in the header in the same way.
From the client side, the same cookies will always be sent to the server whether it's a regular request or an AJAX request. The Javascri...
Regex how to match an optional character
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Why are variables “i” and “j” used for counters?
...ly uses i for the first index, j for the second, and so on. Example (from http://en.wikipedia.org/wiki/Summation):
It's also used that way for collections of things, like if you have a bunch of variables x1, x2, ... xn, then an arbitrary one will be known as xi.
As for why it's that way, I ...
Find the extension of a filename in Ruby
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How to sort the result from string_agg()
...
https://docs.microsoft.com/en-us/sql/t-sql/functions/string-agg-transact-sql?view=sql-server-2017
SELECT
STRING_AGG(prod, '|') WITHIN GROUP (ORDER BY product)
FROM ...
...
How to edit incorrect commit message in Mercurial? [duplicate]
... found the histedit extension very useful. The process is explained here:
http://knowledgestockpile.blogspot.com/2010/12/changing-commit-message-of-revision-in.html
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What is the difference between t.belongs_to and t.references in rails?
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How to ignore xargs commands if stdin input is empty?
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