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Unique Constraint in Entity Framework Code First
...d compliant you should absolutely be able to enforce uniqueness this way. Now whether EF allows you to properly manage the transaction lifecycle this way is another question.
– mattmc3
May 1 '11 at 0:21
...
How can I change my Cygwin home folder after installation?
...PROFILE%
Click OK in all the open dialog boxes to apply this new setting
Now we are going to update the Cygwin /etc/passwd file with the Windows %HOME% variable we just created. Shell logins and remote logins via ssh will rely on /etc/passwd to tell them the location of the user's $HOME path.
At ...
For loop for HTMLCollection elements
...rties of the object):
0
1
2
item
namedItem
@@iterator
length
Hopefully, now you can see why you want to use for (var i = 0; i < list.length; i++) instead so you just get 0, 1 and 2 in your iteration.
Following below is an evolution of how browsers have evolved through the time period 2015-2...
git: 'credential-cache' is not a git command
...e msysgit has been superseded by Git for Windows, using Git for Windows is now the easiest option. Some versions of the Git for Windows installer (e.g. 2.7.4) have a checkbox during the install to enable the Git Credential Manager. Here is a screenshot:
Still using msysgit? For msysgit versions ...
Android emulator-5554 offline
...
This helped ind combination with 'Cold Boot now' just below 'Wipe Data'.
– S. Gissel
Apr 24 '19 at 11:00
...
how to create a Java Date object of midnight today and midnight tomorrow?
...Date
LocalTime midnight = LocalTime.MIDNIGHT;
LocalDate today = LocalDate.now(ZoneId.of("Europe/Berlin"));
LocalDateTime todayMidnight = LocalDateTime.of(today, midnight);
LocalDateTime tomorrowMidnight = todayMidnight.plusDays(1);
Joda-Time
If you're using a JDK < 8, I recommend Joda Time,...
In absence of preprocessor macros, is there a way to define practical scheme specific flags at proje
.... Here's an example:
#if DEBUG
let a = 2
#else
let a = 3
#endif
Now, you must set the "DEBUG" symbol elsewhere, though. Set it in the "Swift Compiler - Custom Flags" section, "Other Swift Flags" line. You add the DEBUG symbol with the -D DEBUG entry.
(Build Settings -> Swift Compiler ...
Regular expression for floating point numbers
...tion.)
That said, most regex engines (actually, all of them, as far as I know) would accept \.. Most likely, there's an issue with escaping.
The Trouble with Escaping
Some languages have built-in support for regexes, such as JavaScript. For those languages that don't, escaping can be a problem.
...
how to emulate “insert ignore” and “on duplicate key update” (sql merge) with postgresql?
...rows and with mysql i can do this with only ONE query without any looping. Now I wonder if this is possible with postgresql too: to use just one query to bulk update OR insert. You say: "you're best of splitting it into two queries, one for INSERT and one for UPDATE" but how can I do an insert which...
Can I automatically increment the file build version when using Visual Studio?
...d like this,
<PropertyGroup>
<Year>$([System.DateTime]::Now.ToString("yy"))</Year>
<Month>$([System.DateTime]::Now.ToString("MM"))</Month>
<Date>$([System.DateTime]::Now.ToString("dd"))</Date>
<Time>$([System.DateTime]::Now.ToString(...