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Copy values from one column to another in the same table
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Short answer for the code in question is:
UPDATE `table` SET test=number
Here table is the table name and it's surrounded by grave accent (aka back-ticks `) as this is MySQL convention to escape keywords (and TABLE is a keyword in that case).
BEWARE, that this is pretty dangerou...
TreeMap sort by value
...ys.
However, using an external collection, you can always sort Map.entrySet() however you wish, either by keys, values, or even a combination(!!) of the two.
Here's a generic method that returns a SortedSet of Map.Entry, given a Map whose values are Comparable:
static <K,V extends Comparable...
When should Flask.g be used?
...s a new application context, wiping the old one, so g can still be used to set flags per-request without change to code.
The application context is popped after teardown_request is called. (Armin's presentation explains this is because things like creating DB connections are tasks which setup the en...
Changing the status bar text color in splash screen iOS 7
...erty and type UIStatusBarStyleLightContent instead.
And you don't have to set UIViewControllerBasedStatusBarAppearanceto NOin your plist, you can set the preferredStatusBarStyle you want to your view controllers.
share
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Setting the Vim background colors
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As vim's own help on set background says, "Setting this option does not change the background color, it tells Vim what the background color looks like. For changing the background color, see |:hi-normal|."
For example
:highlight Normal ctermfg=...
how does array[100] = {0} set the entire array to 0?
... your question is "what will happen with such declaration" - compiler will set first array element to the value you've provided (0) and all others will be set to zero because it is a default value for omitted array elements.
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How to avoid using Select in Excel VBA
...e examples of how to avoid select
Use Dim'd variables
Dim rng as Range
Set the variable to the required range. There are many ways to refer to a single-cell range
Set rng = Range("A1")
Set rng = Cells(1,1)
Set rng = Range("NamedRange")
or a multi-cell range
Set rng = Range("A1:B10")
Set rng...
autolayout - make height of view relative to half superview height
...ple:
First create a basic top alignment constraint (you will also need to setup bottom, left, and right constraints, like normal)
. Then select the constraint and navigate to the Attribute inspector:
Then you can adjust the multiplier. If you want it 50% of the super view leave it at 1, since it...
Is a Python list guaranteed to have its elements stay in the order they are inserted in?
...ent of the string are certainly permitted ("aaa" can exist and != "a").
A set is a collection of elements that cannot contain duplicates and has a non-definite order that may or may not change over time. Sets do not represent lists of things so much as they describe the extent of a certain selectio...
Calculate a Running Total in SQL Server
...full table then it will proceed in the order of the primary key. So if you set your date as a primary key ascending you will probably be safe. But you are relying on an undocumented SQL Server implementation detail (also if the query ends up being performed by two procs I wonder what will happen, se...