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What are '$$' used for in PL/pgSQL
...ACE FUNCTION update_ts() RETURNS TRIGGER AS $BODY$ BEGIN NEW.updated_at = NOW(); RETURN NEW; END; $BODY$ LANGUAGE plpgsql - I don't see body defined anywhere. I really have no idea what is going on here
– Growler
Feb 2 '17 at 3:55
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I don't remember my android debug.keystore password
...ee my debug.keystore password?
I entered my password 3 or 4 month ago and now i don't remember.
4 Answers
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What is the difference between ports 465 and 587?
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@EricJ. ...But gmail also supports port 587. Do you know which port Google uses internally? Otherwise, the fact that they support 465 doesn't really count as evidence it's preferred or even particularly commonly used.
– Parthian Shot
Mar 2...
In a bootstrap responsive page how to center a div
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Update for Bootstrap 4
Now that Bootstrap 4 is flexbox, vertical alignment is easier. Given a full height flexbox div, just us my-auto for even top and bottom margins...
<div class="container h-100 d-flex justify-content-center">
<div...
Space between two rows in a table?
...: syntax is <horizontal value> <vertical value> */
UPDATE
I now understand that the OP wants specific, seperate rows to have increased spacing. I've added a setup with tbody elements that accomplishes that without ruining the semantics. However, I'm not sure if it is supported on all ...
How to get a specific “commit” of a gem from github?
...s_admin , and since it is in (very) active development, bugs turn up every now and then.
2 Answers
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How do you use colspan and rowspan in HTML tables?
I don't know how to merge rows and columns inside HTML tables.
11 Answers
11
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Difference between onStart() and onResume()
...which does it and it does it very efficiently (assuming the app developer knows what they're doing and also codes efficiently). If you do a lot of Android development you'll realise why things work the way they do - it's not 100% perfect but it's pretty good.
– Squonk
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How to write a Ruby switch statement (case…when) with regex and backreferences?
I know that I can write a Ruby case statement to check a match against a regular expressions.
However, I'd like to use the match data in my return statement. Something like this semi-pseudocode:
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What's the difference between a single precision and double precision floating point operation?
...o represent floating-point values.
Most computers use a standard format known as the IEEE floating-point format.
The IEEE double-precision format actually has more than twice as many bits of precision as the single-precision format, as well as a much greater range.
From the IEEE standard for f...