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Is there a way to access the “previous row” value in a SELECT statement?
...from table t1, table t2
where t1.primaryKey = t2.primaryKey - 1
If you know how to order things but not how to get the previous value given the current one (EG, you want to order alphabetically) then I don't know of a way to do that in standard SQL, but most SQL implementations will have extensio...
Check existence of directory and create if doesn't exist
...f I am in folder test1 then inside it test2 inside it test3 ... but right now I am facing problem. Is there a way that I can create 3 level of directory even if directory1 does not exits ??
– Praveen Kesani
Aug 8 '16 at 6:18
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In Java, what does NaN mean?
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Minimal runnable example
The first thing that you have to know, is that the concept of NaN is implemented directly on the CPU hardware.
All major modern CPUs seem to follow IEEE 754 which specifies floating point formats, and NaNs, which are just special float values, are part of th...
How to make a button redirect to another page using jQuery or just Javascript
...ince it will be a proper search form eventually you should do it like that now if possible.
– DisgruntledGoat
Feb 10 '10 at 16:41
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npm can't find package.json
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@elangovan Link now seems to fail to resolve for me.
– iokevins
Mar 31 '18 at 22:14
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Another Repeated column in mapping for entity error
...placed JPA annotations on but did NOT define the relationships and you are now trying to define them for use in your code, then you might NOT be able to delete the customerId @Column since other code may directly reference it already. In that case, define the relationships as follows:
@ManyToOne(o...
Is there a way to remove the separator line from a UITableView?
...toryboard. To get around this, you have to set it from code, because as of now there is a bug from storyboard. Hope they will fix it in future beta.
Here's the code to set it:
[self.tableView setSeparatorStyle:UITableViewCellSeparatorStyleNone];
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How to elegantly check if a number is within a range?
...USIVE) to allow for < vs <=. I wrote this intending to be snarky but now that I think about it the flags would actually encourage the caller to get their specification straight.
– William T. Mallard
Jul 27 '16 at 8:08
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ASP.NET Identity reset password
... of a user in the new ASP.NET Identity system? Or how can I reset without knowing the current one (user forgot password)?
1...
How can I return camelCase JSON serialized by JSON.NET from ASP.NET MVC controller methods?
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@SharpCoder did you find any better alternative, now, 3 years later?
– DARKGuy
Aug 31 at 3:45
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