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What's the best way of structuring data on firebase?
... No biggie if none of those things number in thousands. But a big deal for 10k users with upwards of 5k messages each.
So now the optimal strategy for a hierarchical, real-time structure becomes more obvious:
/user_meta/uid/email
/messages/uid/...
/widgets/uid/...
An additional tool which is ext...
SQL Server 2008 Windows Auth Login Error: The login is from an untrusted domain
...
Just happened for me (Win 10), whilst it wasn't that my password had expired, I had just changed it via 'Ctrl-Alt-Del'. I restarted and it was fine again. Extremely annoying, changing the password also affected Outlook and OneDrive's ability to func...
What should every developer know about databases? [closed]
...
107
+50
The ver...
Is there a timeout for idle PostgreSQL connections?
...HERE
current_query = '<IDLE>'
AND
now() - query_start > '00:10:00';
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How can I create a temp file with a specific extension with .NET?
... billion [19], that means
the probability is about 0.00000000006
(6 × 10−11), equivalent to the odds of
creating a few tens of trillions of
UUIDs in a year and having one
duplicate. In other words, only after
generating 1 billion UUIDs every
second for the next 100 years, the
prob...
How do I compile and run a program in Java on my Mac?
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edited Mar 2 '10 at 5:44
answered Mar 2 '10 at 5:30
...
Cast a Double Variable to Decimal
... orad
11.8k1818 gold badges6565 silver badges102102 bronze badges
answered May 15 '11 at 7:48
GuffaGuffa
619k9090 gold badg...
How to get a JavaScript object's class?
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1054
There's no exact counterpart to Java's getClass() in JavaScript. Mostly that's due to JavaScr...
Convert number strings with commas in pandas DataFrame to float
...te step.
You need to set the locale first:
In [ 9]: import locale
In [10]: from locale import atof
In [11]: locale.setlocale(locale.LC_NUMERIC, '')
Out[11]: 'en_GB.UTF-8'
In [12]: df.applymap(atof)
Out[12]:
0 1
0 1200 4200.00
1 7000 -0.03
2 5 0.00
...