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What is the difference between a Docker image and a container?
... trusty 99ec81b80c55 2 months ago 266 MB
<none> <none> 4ab0d9120985 3 months ago 486.5 MB
Some things to note:
IMAGE ID is the first 12 characters of the true identifier for an image. You can create many tags ...
Should I use alias or alias_method?
...hin the same class. Which should I use? I always see alias used, but someone told me alias_method is better.
7 Answers
...
LISTAGG in Oracle to return distinct values
...in my existing aggregated query instead of wrapping that query in an outer one. What's wrong with using wm_concat(distinct x)?
– Ehryk
Apr 14 '15 at 18:03
1
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How to insert a line break in a SQL Server VARCHAR/NVARCHAR string
...'m working on right now. Thought I would post the answer for it in case anyone else had the same question.
11 Answers
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What is the difference between “#!/usr/bin/env bash” and “#!/usr/bin/bash”?
...ons on different systems. As long as it's in your path, it will find it.
One downside is that you will be unable to pass more than one argument (e.g. you will be unable to write /usr/bin/env awk -f) if you wish to support Linux, as POSIX is vague on how the line is to be interpreted, and Linux int...
Styling Google Maps InfoWindow
...
It should be noted that one of your links here are examples of the InfoBox object (another type of info window) and not the InfoWindow object (the original google info window). Good to know if you are googling it and maybe confused as to why you can...
Cannot resolve the collation conflict between “SQL_Latin1_General_CP1_CI_AS” and “Latin1_General_CI_
... or database - you're only asking for trouble....
Once you've settled for one single collation, you can change those tables / columns that don't match yet using this command:
ALTER TABLE YourTableName
ALTER COLUMN OffendingColumn
VARCHAR(100) COLLATE Latin1_General_CI_AS NOT NULL
Marc
UPD...
The Role Manager feature has not been enabled
...ere via Google that suggested a) making sure your db connectionstring (the one that Roles is using) is correct and that the key to it is spelled correctly, and b) that the Enabled flag on RoleManager is set to true. Hope one of those helps. It did for me.
Did you try checking Roles.Enabled? Also, y...
Difference between Big-O and Little-O Notation
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f ∈ O(g) says, essentially
For at least one choice of a constant k > 0, you can find a constant a such that the inequality 0 <= f(x) <= k g(x) holds for all x > a.
Note that O(g) is the set of all functions for which this condition holds.
f ∈ o(g)...
MongoDB Many-to-Many Association
...or instance, if the document structures require acquiring a lock, updating one document, then another, and possibly more documents, then releasing the lock, likely the model has failed. Just because we can build distributed locks doesn't mean that we are supposed to use them.
For the case of the U...