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Add a column to a table, if it does not already exist
I want to write a query for MS SQL Server that adds a column into a table. But I don't want any error display, when I run/execute the following query.
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How do I use Linq to obtain a unique list of properties from a list of objects?
... editor after snippets, if snippets enabled
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How can I delete all Git branches which have been merged?
I have many Git branches. How do I delete branches which have already been merged? Is there an easy way to delete them all instead of deleting them one by one?
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git: diff between file in local repo and origin
... git diff master:README.md -- README.md
– fabriciorissetto
Oct 20 '15 at 13:18
26
Actually, here ...
Add custom messages in assert?
Is there a way to add or edit the message thrown by assert? I'd like to use something like
8 Answers
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What is a good pattern for using a Global Mutex in C#?
...call
bool createdNew;
// edited by Jeremy Wiebe to add example of setting up security for multi-user usage
// edited by 'Marc' to work also on localized systems (don't use just "Everyone")
var allowEveryoneRule =
new MutexAccessRule( new SecurityIdentifier( WellKnownSidType...
Add margin above top ListView item (and below last) in Android
...en when you scroll the list it disappears under the edge of the padding.
Set ListView's clipToPadding attribute to false. This will enable padding around the ListView and scrolling to the end of the layout (and not only to the edge of the padding).
An example:
<ListView
android:id="@+id/l...
XAMPP - MySQL shutdown unexpectedly
...h was stored in that file (all the InnoDB tables which were created before setting innodb_file_per_table to enabled). The methods suggested in the log message seem suprtior to me.
– Tgr
Oct 12 '13 at 10:50
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A beginner's guide to SQL database design [closed]
... most perfect index in the world for the data type, but at least an index.
Set up your foreign keys. Also set up ON DELETE and ON MODIFY rules where relevant, to either cascade or set null, depending on your object structure (so you only need to delete once at the 'head' of your object tree, and all...
Best way to simulate “group by” from bash?
Suppose you have a file that contains IP addresses, one address in each line:
14 Answers
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