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How do I restore a dump file from mysqldump?
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It should be as simple as running this:
mysql -u <user> -p < db_backup.dump
If the dump is of a single database you may have to add a line at the top of the file:
USE <database-name-here>;
If it was a du...
Implications of foldr vs. foldl (or foldl')
...am reading, says to never use foldl and instead use foldl' . So I trust it.
7 Answers
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Turn off auto formatting in Visual Studio
...s. I've turned off auto-formatting options in Tools/options. In most cases it works.
15 Answers
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What's the best practice for primary keys in tables?
When designing tables, I've developed a habit of having one column that is unique and that I make the primary key. This is achieved in three ways depending on requirements:
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git - skipping specific commits when merging
I've been using Git for about a year now and think it's fantastic, but I've just started on a second version of the project and started a new branch for it. I'm struggling a little with the best way to handle things going forward.
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Most efficient way to concatenate strings?
...ilder sb = new StringBuilder();
sb.Append(someString);
The only problem with String.Join is that you have to concatenate the strings with a common delimiter.
Edit: as @ryanversaw pointed out, you can make the delimiter string.Empty.
string key = String.Join("_", new String[]
{ "Customers_Contac...
Namespace and class with the same name?
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I don't recommend you to name a class like its namespace, see this article.
The Framework Design Guidelines say in section 3.4 “do not use the
same name for a namespace and a type in that namespace”. That is:
namespace MyContainers.List
{
public class List ...
Is it possible to listen to a “style change” event?
Is it possible to create an event listener in jQuery that can be bound to any style changes? For example, if I want to "do" something when an element changes dimensions, or any other changes in the style attribute I could do:
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nullable object must have a value
...e receiving was thrown in the .Value property of the Nullable DateTime, as it is required to return a DateTime (since that's what the contract for .Value states), but it can't do so because there's no DateTime to return, so it throws an exception.
In general, it is a bad idea to blindly call .Value...
Save PL/pgSQL output from PostgreSQL to a CSV file
... built in COPY command. e.g.
Copy (Select * From foo) To '/tmp/test.csv' With CSV DELIMITER ',' HEADER;
This approach runs entirely on the remote server - it can't write to your local PC. It also needs to be run as a Postgres "superuser" (normally called "root") because Postgres can't stop it doi...