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How to check if a Constraint exists in Sql server?
...estion, I was thinking "Foreign Key" because the original question asked about finding "FK_ChannelPlayerSkins_Channels". Since then many people have commented on finding other "constraints" here are some other queries for that:
--Returns one row for each CHECK, UNIQUE, PRIMARY KEY, and/or FOREIGN ...
What is the best way to dump entire objects to a log in C#?
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In .NET Core 3.1 and .NET 5+, you can also use out of the box API System.Text.Json.JsonSerializer.Serialize(yourObject).
– vulcan raven
Sep 18 at 10:11
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Obtaining a powerset of a set in Java
...d(3);
for (Set<Integer> s : SetUtils.powerSet(mySet)) {
System.out.println(s);
}
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Reason to Pass a Pointer by Reference in C++?
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Oh. I thought you were talking about returning a reference to a pointer (your exact wording: "return a pointer by reference", because that was what OP was asking about: passing pointers by references, not just plain old references) as some fancy way of givin...
How to solve privileges issues when restore PostgreSQL Database
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is there a way to do this without being a superuser?
– Travis Webb
May 12 '14 at 14:58
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Apply pandas function to column to create multiple new columns?
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just out of curiousity, is it expected to use up a lot of memory by doing this? I am doing this on a dataframe that holds 2.5mil rows, and i nearly ran into memory problems (also it is much slower than returning just 1 column).
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Simple way to calculate median with MySQL
...FLOOR((@total_rows+1)/2), FLOOR((@total_rows+2)/2) );
Steve Cohen points out, that after the first pass, @rownum will contain the total number of rows. This can be used to determine the median, so no second pass or join is needed.
Also AVG(dd.val) and dd.row_number IN(...) is used to correctly p...
Fastest way to convert string to integer in PHP
... I added settype to this test and ran it using PHP 7. Cast came out slightly in front and a big performance improvement over all: string coerce: 1.9255340099335 string cast: 1.5142338275909 string settype: 4.149735212326 string fail coerce: 1.234656095...
Java Hashmap: How to get key from value?
...braries (the latter is not an Apache project). Thanks to Esko for pointing out the missing generic support in Apache Commons Collections. Using collections with generics makes more maintainable code.
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HTML encoding issues - “” character showing up instead of “ ”
...it'd be 0xC2,0xA0, which, if you (incorrectly) view it as ISO-8859-1 comes out as "Â ". That includes a trailing nbsp which you might not be noticing; if that byte isn't there, then something else has mauled your document and we need to see further up to find out what.
What's the regexp, how does...