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Export database schema into SQL file
...ere are the steps:
Right click the database you want to generate scripts for (not the table) and select tasks - generate scripts
Next, select the requested table/tables, views, stored procedures, etc (from select specific database objects)
Click advanced - select the types of data to script
Clic...
WPF - How to force a Command to re-evaluate 'CanExecute' via its CommandBindings
...ommand I've defined. The associated CommandBinding provides a callback for the evaluation of CanExecute which controls the enabled state of each MenuItem .
...
Guaranteed lifetime of temporary in C++?
Does C++ provide a guarantee for the lifetime of a temporary variable that is created within a function call but not used as a parameter? Here's an example class:
...
Get Android API level of phone currently running my application [duplicate]
...d.os.Build.VERSION, which is a static class that holds various pieces of information about the Android OS a system is running.
If you care about all versions possible (back to original Android version), as in minSdkVersion is set to anything less than 4, then you will have to use android.os.Build.V...
Why is sed not recognizing \t as a tab?
...to insert a tab in front of every line in $filename however it is not. For some reason it is inserting a t instead.
1...
How to query MongoDB with “like”?
...": /.*m.*/})
or, similar:
db.users.find({"name": /m/})
You're looking for something that contains "m" somewhere (SQL's '%' operator is equivalent to Regexp's '.*'), not something that has "m" anchored to the beginning of the string.
note: mongodb uses regular expressions which are more powerfu...
How to get all subsets of a set? (powerset)
...
The Python itertools page has exactly a powerset recipe for this:
from itertools import chain, combinations
def powerset(iterable):
"powerset([1,2,3]) --> () (1,) (2,) (3,) (1,2) (1,3) (2,3) (1,2,3)"
s = list(iterable)
return chain.from_iterable(combinations(s, r)...
How can I fix the Microsoft Visual Studio error: “package did not load correctly”?
...alappdata%\Microsoft\VisualStudio\12.0\ComponentModelCache
It worked fine for me. Thanks to this article.
Visual Studio 2015
%localappdata%\Microsoft\VisualStudio\14.0\ComponentModelCache
Visual Studio 2017
%localappdata%\Microsoft\VisualStudio\15.0_xxxx\ComponentModelCache
Visual Studio 2019
%lo...
JSTL in JSF2 Facelets… makes sense?
...'s turn to run from top to bottom again, producing the HTML output.
<c:forEach> vs <ui:repeat>
For example, this Facelets markup iterating over 3 items using <c:forEach>:
<c:forEach items="#{bean.items}" var="item">
<h:outputText id="item_#{item.id}" value="#{item.v...
How to check if an email address exists without sending an email?
... a VRFY command. Very few servers support this command, but it is intended for exactly this. If the server responds with a 2.0.0 DSN, the user exists.
VRFY user
You can issue a RCPT, and see if the mail is rejected.
MAIL FROM:<>
RCPT TO:<user@domain>
If the user doesn't exist, you...