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Drop a temporary table if it exists
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From SQL Server 2016 you can just use
DROP TABLE IF EXISTS ##CLIENTS_KEYWORD
On previous versions you can use
IF OBJECT_ID('tempdb..##CLIENTS_KEYWORD', 'U') IS NOT NULL
/*Then it exists*/
DROP TABLE ##CLIENTS_KEYWORD
CREATE TABLE ##CLIENTS_KEYWORD
(
client_id INT
)
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What is the rationale for fread/fwrite taking size and count as arguments?
...ust taking a buffer and size. The only use for it we could come up with is if you want to read/write an array of structs which aren't evenly divisible by the platform alignment and hence have been padded but that can't be so common as to warrant this choice in design.
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C# switch on type [duplicate]
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You should probably do a check if that type is in the dictionary. Could do so fairly simple like this if(@switch.ContainsKey(typeof(MyType))) @switch[typeof(MyType)]();
– Automatico
Feb 26 '13 at 23:05
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How does the Comma Operator work
... operator may be overloaded in C++. The actual behaviour may thus be very different from the one expected.
As an example, Boost.Spirit uses the comma operator quite cleverly to implement list initializers for symbol tables. Thus, it makes the following syntax possible and meaningful:
keywords = "a...
Int division: Why is the result of 1/3 == 0?
...do any rounding, but you can think of it that way still.)
Also, note that if both operands (numbers) are given as floats; 3.0 and 1.0, or even just the first, then floating-point arithmetic is used, giving you 0.333....
sha...
What is tail recursion?
...e JavaScript implementation that uses recursion:
function recsum(x) {
if (x === 1) {
return x;
} else {
return x + recsum(x - 1);
}
}
If you called recsum(5), this is what the JavaScript interpreter would evaluate:
recsum(5)
5 + recsum(4)
5 + (4 + recsum(3))
5 + (4 + ...
Official way to ask jQuery wait for all images to load before executing something
...ething when all other things are loaded as well, such as the images.
The difference can be seen in the following complete HTML file, provided you have a jollyroger JPEG files (or other suitable ones):
<html>
<head>
<script src="jquery-1.7.1.js"></script>
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How do I parse a string with a decimal point to a double?
...ert class ... do you have any ideas whether this is better, worse, and/or different than using CultureInfo.InvariantCulture?
– ChrisW
Aug 30 '09 at 21:23
1
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Catching error codes in a shell pipe
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If you really don't want the second command to proceed until the first is known to be successful, then you probably need to use temporary files. The simple version of that is:
tmp=${TMPDIR:-/tmp}/mine.$$
if ./a > $tmp.1
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How can a Java variable be different from itself?
I am wondering if this question can be solved in Java (I'm new to the language). This is the code:
10 Answers
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