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@Transactional(propagation=Propagation.REQUIRED)
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answered May 24 '12 at 15:01
GuidoGuido
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How to get a list of user accounts using the command line in MySQL?
... table like this:
+-------+
| User |
+-------+
| root |
+-------+
| user2 |
+-------+
As Matthew Scharley points out in the comments on this answer, you can group by the User column if you'd only like to see unique usernames.
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Modify table: How to change 'Allow Nulls' attribute from not null to allow null
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-- replace NVARCHAR(42) with the actual type of your column
ALTER TABLE your_table
ALTER COLUMN your_column NVARCHAR(42) NULL
share
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improve t...
Cache Invalidation — Is there a General Solution?
...t remember to consider the validity of the cached value of b. If you chose 2 you must still check b every time but can fall back on the cache for a if b checks out.
If you layer caches you must consider whether you have violated the 'rules' of the system as a result of the combined behaviour.
If ...
How to use chrome web inspector to view hover code
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edited Dec 16 '12 at 1:57
Guido van Rossum
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Get file size, image width and height before upload
...sources will be a URL representing the Blob object
<img src="blob:null/026cceb9-edr4-4281-babb-b56cbf759a3d">
const EL_browse = document.getElementById('browse');
const EL_preview = document.getElementById('preview');
const readImage = file => {
if ( !(/^image\/(png|jpe?g|gif)...
How to improve performance of ngRepeat over a huge dataset (angular.js)?
... a huge dataset of several thousand rows with around 10 fields each, about 2MBs of data. I need to display it in the browser. Most straightforward approach (fetch data, put it into $scope , let ng-repeat="" do its job) works fine, but it freezes the browser for about half of a minute when it star...
Different ways of adding to Dictionary
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The performance is almost a 100% identical. You can check this out by opening the class in Refle...
How to change a git submodule to point to a subfolder?
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edited Sep 18 '13 at 15:29
Ballsacian1
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How to add a WiX custom action that happens only on uninstall (via MSI)?
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edited Nov 19 '19 at 7:52
nelsonjchen
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answered Apr 8 '09 at 20:3...