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How do I update if exists, insert if not (AKA “upsert” or “merge”) in MySQL?
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@blub: If you create a unique key on geb and topic it will work (ALTER TABLE table ADD UNIQUE geb_by_topic (geb, topic)).
– chaos
Aug 2 '09 at 13:43
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How to generate string of a certain length to insert into a file to meet a file size criteria?
...utomatically generate the files. I know the size of each file, ex. 100KB, and how many files to generate. What I need help with is how to generate a string less than or equal to the required file size.
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Vertical line using XML drawable
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Instead of a shape, you could try a View:
<View
android:layout_width="1dp"
android:layout_height="match_parent"
android:background="#FF0000FF" />
I have only used this for horizontal lines, but I would think it would work for vertical lines as well.
Use:
<Vi...
How to pass optional arguments to a method in C++?
... else
do_something_else();
}
you can call myfunc in both ways and both are valid
myfunc(10); // Mode will be set to default 0
myfunc(10, 1); // Mode will be set to 1
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See all breakpoints in Visual Studio 2010+
Is there a window in Visual Studio 2010 and newer where I can see all the breakpoints that I have in my project or solution?
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How can I disable a button on a jQuery UI dialog?
...tton() plugin/widget that jQuery UI contains (if you have the full library and are on 1.8+, you have it), you can use it to disable the button and update the state visually, like this:
$(".ui-dialog-buttonpane button:contains('Confirm')").button("disable");
You can give it a try here...or if you'...
The type initializer for 'MyClass' threw an exception
...ception; it is likely to contain information about the underlying problem, and exactly where it occurred.
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Use Font Awesome Icons in CSS
...the font name is to right click on a sample font awesome icon on your page and get the font name (same way the utf-8 icon code can be found, but note that you can find it out on :before).
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im...
Cannot find JavaScriptSerializer in .Net 4.0
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in vb.net don't forget "new" and ( ) like : Dim JsonConvert As New JavaScriptSerializer()
– zokaee hamid
Nov 6 '19 at 13:02
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postgresql - replace all instances of a string within text field
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Hi guys, I like your answer and explanation, it is really helpful. Could you please add an example using regexp_replace? Thanks!
– Wim Feijen
Oct 22 '14 at 16:09
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