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Does the join order matter in SQL?
...ntheses requires moving the ON clause (i.e. the "join specification") to a new location. This is only syntax, though. If you use relational algebra notation (where the join specification is placed below the join operator), then associativity becomes more evident. Your argument only displays that out...
How to make Eclipse behave well in the Windows 7 taskbar?
...side it.
Note that I have the JS version of Eclipse Helios. Which spawns a new and different taskbar icon after loading.
7 ...
How can I easily convert DataReader to List? [duplicate]
...reader = ...)
{
List<Customer> customers = reader.Select(r => new Customer {
CustomerId = r["id"] is DBNull ? null : r["id"].ToString(),
CustomerName = r["name"] is DBNull ? null : r["name"].ToString()
}).ToList();
}
I would actually suggest putting a FromDataRead...
Entity Framework: “Store update, insert, or delete statement affected an unexpected number of rows (
...fferent that no on else has mentioned.
Long story short, if you create a new object and tell EF that its modified using the EntityState.Modified then it will throw this error as it doesn't yet exist in the database. Here is my code:
MyObject foo = new MyObject()
{
someAttribute = someValue
};...
jQuery Tips and Tricks
...
Creating an HTML Element and keeping a reference
var newDiv = $("<div />");
newDiv.attr("id", "myNewDiv").appendTo("body");
/* Now whenever I want to append the new div I created,
I can just reference it from the "newDiv" variable */
Checking if an element exists...
How to log out user from web site using BASIC authentication?
...localhost. Chrome appears to keep both the old (correct) password and the new password which you specify. After navigating to the logout page, chrome correctly uses the new password UNTIL IT ENCOUNTERS A 401 UNAUTHORIZED ON A PAGE ON YOUR SITE. After the first 401, Chrome reverts back to the old ...
Android: android.content.res.Resources$NotFoundException: String resource ID #0x5
... strings.xml file. Due to some caching/reloading/whatever it discarded the new file and kept the old one. So I had the string ids from the translation but not from the plain string.xml
– denispyr
Mar 13 '17 at 17:21
...
How do I push to GitHub under a different username?
...ng git push Git asks for a password of user, but you would like to push as new_user, you may want to use git config remote.origin.url:
$ git push
user@my.host.com:either/branch/or/path's password:
At this point use ^C to quit git push and use following to push as new_user.
$ git config remote.or...
How to delete an object by id with entity framework
...ork 6 the delete action is Remove. Here is an example
Customer customer = new Customer () { Id = id };
context.Customers.Attach(customer);
context.Customers.Remove(customer);
context.SaveChanges();
share
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Check if object value exists within a Javascript array of objects and if not add a new object to arr
...d')); // false
But it's not so obvious what to do when you have to add a new user to this array. The easiest way out - just pushing a new element with id equal to array.length + 1:
function addUser(username) {
if (userExists(username)) {
return false;
}
arr.push({ id: arr.length + 1, u...