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MySQL, better to insert NULL or empty string?

...tching databases, is that Oracle does not support empty strings. They are converted to NULL automatically and you can't query for them using clauses like WHERE somefield = '' . share | improve this...
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Using custom fonts using CSS?

...rowsers; you can use fontsquirrel.com's generator to avoid too much effort converting. You can find a nice set of free web-fonts provided by Google Fonts (also has auto-generated CSS @font-face rules, so you don't have to write your own). while also preventing people from having free access to ...
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What should a Multipart HTTP request with multiple files look like? [duplicate]

...ntains binary data, so I'm not posting the request as such - instead, I've converted every non-printable-ascii character into a dot ("."). POST /cgi-bin/qtest HTTP/1.1 Host: aram User-Agent: Mozilla/5.0 Gecko/2009042316 Firefox/3.0.10 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/...
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Best way to check if object exists in Entity Framework?

...k if object is null , it works 100% for me try { var ID = Convert.ToInt32(Request.Params["ID"]); var Cert = (from cert in db.TblCompCertUploads where cert.CertID == ID select cert).FirstOrDefault(); if (Cert != null) { db.TblCompCertUploads.Delete...
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Rails: how do I validate that something is a boolean?

... This does not work, as any string eg, "foo" will be converted into true. – Ka Mok Jun 4 '18 at 22:55 add a comment  |  ...
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console.log timestamps in Chrome?

... I convert arguments to Array using Array.prototype.slice so that I can concat with another Array of what I want to add, then pass it into console.log.apply(console, /*here*/); var log = function () { return console.log.app...
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How do I clone a generic list in C#?

... I think List.ConvertAll might do this in faster time, since it can pre-allocate the entire array for the list, versus having to resize all the time. – MichaelGG Oct 21 '08 at 17:43 ...
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Eclipse error: “The import XXX cannot be resolved”

...f you import a maven project as "Java project" then this problem is occur. Convert project to maven project and update as you said then the problem is gone. – kodmanyagha Jun 26 '18 at 22:53 ...
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Find unique rows in numpy.array

... To avoid a FutureWarning, convert the set to a list like: np.vstack(list({tuple(row) for row in AIPbiased[i, :, :]})) FutureWarning: arrays to stack must be passed as a "sequence" type such as list or tuple. Support for non-sequence iterables such as...
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Accessing an SQLite Database in Swift

...nts. Declare Swift enums for discrete data types. Define your own database-convertible types. Database Migrations Speed: https://github.com/groue/GRDB.swift/wiki/Performance share | improve this an...