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Add new column with foreign key constraint in one command
...f my ids as there is no point of having negative id LOL.
So for that, the raw SQL query will change like this:
ALTER TABLE `table_name`
ADD `column_name` INTEGER UNSIGNED,
ADD CONSTRAINT constrain_name FOREIGN KEY(column_name) REFERENCES foreign_table_name(id);
I hope it helps
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Eventual consistency in plain English
...ding server must return its own copy of the data, and doesn't have time to consult other servers and reach a mutual agreement on the content of the data. I wrote a blog post explaining this in more detail.
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How do I wrap link_to around some html ruby code?
... and didn't find a good answer. The following should work:
<% link_to raw(html here), @album %>
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Java equivalent of C#'s verbatim strings with @
...Java but could be available in future releases.
There was created JEP 326: Raw String Literals at 2018/01/23
See the progress at https://bugs.openjdk.java.net/browse/JDK-8196004
Probably some day you will be able to do it with:
`c:\afolder\afile`
UPDATE: JEP proposed to drop from JDK 12:326: Ra...
Xcode 4 and Core Data: How to enable SQL Debugging
I'm working on a universal iOS app and I'd like to see the raw SQL in the logs when I'm debugging. There is some info in this blog post about how to enable raw SQL logging for iOS Core Data development. The given example is for Xcode 3 and it's just not clear to me how to enable this in Xcode 4.
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How to check if running in Cygwin, Mac or Linux?
...time using the exact copy of automake's OS variable (Makefile.in). One may consult automake's lib/config.sub file for all of the available types.
– jdknight
Mar 25 '17 at 19:58
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Accessing an array out of bounds gives no error, why?
...guous addresses. There is no bounds checking because it is simply exposing raw memory. Implementing a robust bounds-checking mechanism would have been almost impossible in C.
In C++, bounds-checking is possible on class types. But an array is still the plain old C-compatible one. It is not a class. ...
Is functional GUI programming possible? [closed]
...or constructing a simple interface in the WPF controls demo by Flying Frog Consultancy.
– Funk
Jun 1 '16 at 10:08
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Get underlying NSData from UIImage
...ct with init(data: originalData), that originalData will be converted into raw data in some kind of internal format. These data can be retrieved later with
let rawData = myImage.cgImage?.dataProvider?.data as Data?
However because the rawData is raw, it is going to be even larger than when using ...
Fill remaining vertical space with CSS using display:flex
....w3.org/TR/css-flexbox-1/#propdef-flex
When a box is a flex item, flex is consulted instead of the main size property to determine the main size of the box
min-* and max-* will be respected
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