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Entity Framework select distinct name
...
In order to avoid ORDER BY items must appear in the select list if SELECT DISTINCT error, the best should be
var results = (
from ta in DBContext.TestAddresses
select ta.Name
)
.Distinct()
.OrderBy( x => 1);
...
Size of Matrix OpenCV
...e, here 2 for z axis, 3 for y axis, 4 for x axis.
By x, y, z, it means the order of the dimensions. x index changes the fastest.
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How is the undo tree used in Vim?
...rse all of the nodes in the tree in chronological or reverse-chronological order (which can be a bit confusing, because it can jump arbitrarily between undo branches, but if you do g- long enough you'll always get where you need to go eventually). :earlier and :later take a time descriptor like 7m ...
Is there a way to access an iteration-counter in Java's for-each loop?
...t variant of for iterates over) even have an index, or even have a defined order (some collections may change the order when you add or remove elements).
See for example, the following code:
import java.util.*;
public class TestApp {
public static void AddAndDump(AbstractSet<String> set, ...
Are tuples more efficient than lists in Python?
... lists, moving this structure to tuples decreased lookup times by multiple orders of magnitude for multiple lookups. I believe this to be due to the greater cache locality of the tuple once you start using the tuple due to the removal of the second layer of indirection you demonstrate.
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How to get last key in an array?
...a numerical array, keep in mind that numerical arrays do not have to go in order, or use all the numbers. This will work if you do not explicitly assign to numeric values, but if you do $a[1] = 1; $a[5] = 5; $a[0] = 0; Then you will have an array with keys (1, 5, 0), in that order. count($a) will ...
What's the cause of this FatalExecutionEngineError in .NET 4.5 beta? [closed]
...ructor has already run, it somehow skips running (or executes in the wrong order) the static constructor -- and therefore causes a crash. (You don't get a null pointer exception, probably because it's not null-initialized.)
I have not run your code, so this part may be wrong -- but if I had to make ...
JPA eager fetch does not join
...loading when constructing a customer class with a collection for customer orders. If you retrieved every order for a customer when you wanted to get a customer list this may be a expensive database operation when you only looking for customer name and contact details. Best to leave the db access ti...
Create a tar.xz in one command
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Given the ordering is important with the dash, it's probably best to assume the ordering is always important, and put the f last, even without the dash.
– mwfearnley
Aug 24 '16 at 14:53
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Using column alias in WHERE clause of MySQL query produces an error
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You can only use column aliases in GROUP BY, ORDER BY, or HAVING clauses.
Standard SQL doesn't allow you to
refer to a column alias in a WHERE
clause. This restriction is imposed
because when the WHERE code is
executed, the column value may not yet
be dete...