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Struct Constructor in C++?
... between a class and a struct is that members and base classes are private by default in classes, whereas they are public by default in structs.
So structs can have constructors, and the syntax is the same as for classes.
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Oracle SQL Query for listing all Schemas in a DB
...ted in schemas that Oracle has delivered, you can filter out those schemas by adding predicates on the default_tablespace, i.e.
SELECT username
FROM dba_users
WHERE default_tablespace not in ('SYSTEM','SYSAUX')
or
SELECT username
FROM dba_users u
WHERE EXISTS (
SELECT 1
FROM dba_...
Regex to match a digit two or four times
... may be using your regex library's "find matching substring" functionality by mistake, rather than its "check if complete string matches" functionality. You should consult its documentation.
– ruakh
Mar 1 '17 at 6:44
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How to add a custom right-click menu to a webpage?
...ifference between this solution and the implementation in the answer below by @MohamedIqzas (stackoverflow.com/a/16481062/264097). In the answer below the default context menu is suppressed only for a certain HTML element, not for the whole document. This makes it much less intrusive.
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Android Text over image
...guide has a great example of this here: Android Layout Tricks #3: Optimize by merging.
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NOT IN vs NOT EXISTS
...tainly can be when they force a nested loops plan (sub query evaluated row by row) but this plan includes an anti semi join logical operator. Anti semi joins are not restricted to nested loops but can use hash or merge (as in this example) joins too.
/*Not valid syntax but better reflects the plan...
Git submodule inside of a submodule (nested submodules)
...init --recursive command, introduced in commit b13fd5c, again in git1.6.5, by Johan Herland (jherland).
And IceFire adds in the comments:
If you would like to checkout only one submodule of a submodule, then
git submodule update --init <submoduleName> is the way to go.
(older origin...
Test a weekly cron job [closed]
...ed to "how do I test scripts that run in non-interactive contexts launched by other programs?" In cron, the trigger is some time condition, but lots of other *nix facilities launch scripts or script fragments in non-interactive ways, and often the conditions in which those scripts run contain some...
Container-fluid vs .container
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@TheHung Depends exactly what you mean by 'full width', but container-fluid is what I'd go for in your case as far as I can tell
– JKillian
Oct 28 '14 at 17:39
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Proper SCSS Asset Structure in Rails
...lly add all files.
The order of which your sheets are loaded and processed by the browser is essential. So you will always end up explicitly importing all your css.
As an example, lets say you have a normalize.css sheet, to get a default look instead of all the horrible different browser implement...