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EF Code First “Invalid column name 'Discriminator'” but no inheritance
...he CREATE TABLE statement). It has a primary key, a couple of foreign keys and nothing special about it. I have many tables in my database similar to that one, but for some reason, this table ended up with a "Discriminator" column on the EF Proxy Class.
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How to get the anchor from the URL using jQuery?
...
You can use the .indexOf() and .substring(), like this:
var url = "www.aaa.com/task1/1.3.html#a_1";
var hash = url.substring(url.indexOf("#")+1);
You can give it a try here, if it may not have a # in it, do an if(url.indexOf("#") != -1) check like t...
MySQL ON DUPLICATE KEY UPDATE for multiple rows insert in single query
...nd this is to first declare a temp table, insert value to that temp table, and then use MERGE
Like this:
declare @Source table
(
name varchar(30),
age decimal(23,0)
)
insert into @Source VALUES
('Helen', 24),
('Katrina', 21),
('Samia', 22),
('Hui Ling', 25),
('Yumie', 29);
MERGE beautiful AS T...
Is there a 'box-shadow-color' property?
...w.w3.org/TR/css3-background/#the-box-shadow
You can verify this in Chrome and Firefox by checking the list of computed styles. Other properties that have shorthand methods (like border-radius) have their variations defined in the spec.
As with most missing "long-hand" CSS properties, CSS variable...
How do I replace all line breaks in a string with elements?
How can I read the line break from a value with JavaScript and replace all the line breaks with <br /> elements?
13...
How to convert a string to utf-8 in Python
...icode'>)
^ This is the difference between a byte string (plain_string) and a unicode string.
>>> s = "Hello!"
>>> u = unicode(s, "utf-8")
^ Converting to unicode and specifying the encoding.
In Python 3
All strings are unicode. The unicode function does not exist anymore. See ...
What is an application binary interface (ABI)?
...an ABI is. Please don't point me to a Wikipedia article. If I could understand it, I wouldn't be here posting such a lengthy post.
...
Why is there an injected class name?
... refer to the current instantiation. See DR 176 for a change between C++98 and C++03 that clarified that.
The idea of the injected class name was present in C++98, but the terminology was new for C++03.
C++98 says:
A class-name is inserted into the scope in which it is declared immediately aft...
Java - JPA - @Version annotation
...//...
}
On update, the field annotated with @Version will be incremented and added to the WHERE clause, something like this:
UPDATE MYENTITY SET ..., VERSION = VERSION + 1 WHERE ((ID = ?) AND (VERSION = ?))
If the WHERE clause fails to match a record (because the same entity has already been up...
Detect if homebrew package is installed
...rew packages are installed in the system. Is there a way to use a brew command to achieve that?
4 Answers
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