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Access Denied for User 'root'@'localhost' (using password: YES) - No Privileges?
... answered Jul 31 '13 at 16:42
Andy JonesAndy Jones
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Chaining multiple filter() in Django, is this a bug?
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The way I understand it is that they are subtly different by design (and I am certainly open for correction): filter(A, B) will first filter according to A and then subfilter according to B, while filter(A).filter(B) will return a row that ma...
Message Queue vs. Web Services? [closed]
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When you use a web service you have a client and a server:
If the server fails the client must take responsibility to handle the error.
When the server is working again the client is responsible of resending it.
If the server gives a response to the call and the clien...
How to deploy an ASP.NET Application with zero downtime
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You need 2 servers and a load balancer. Here's in steps:
Turn all traffic on Server 2
Deploy on Server 1
Test Server 1
Turn all traffic on Server 1
Deploy on Server 2
Test Server 2
Turn traffic on both servers
Thing is, even in this case yo...
What is a NullReferenceException, and how do I fix it?
I have some code and when it executes, it throws a NullReferenceException , saying:
28 Answers
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Is Python strongly typed?
...older dialects of C, which were weakly, statically typed, so that pointers and integers were pretty much interchangeable. (Modern ISO C requires conversions in many cases, but my compiler is still lenient about this by default.)
I must add that the strong vs. weak typing is more of a continuum than...
How can I update the current line in a C# Windows Console App?
...pletion, I'd just like to update the value on the same line as the cursor, and not have to put each percentage on a new line.
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What is the difference between the Data Mapper, Table Data Gateway (Gateway), Data Access Object (DA
I'm trying to brush up on my design pattern skills, and I'm curious what are the differences between these patterns? All of them seem like they are the same thing - encapsulate the database logic for a specific entity so the calling code has no knowledge of the underlying persistence layer. From m...
How to map a composite key with JPA and Hibernate?
...y the specification also applies. So here they are:
2.1.4 Primary Keys and Entity Identity
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A composite primary key must
correspond to either a single
persistent field or property or to a
set of such fields or properties as
described below. A primary key class
must be defi...
PHP parse/syntax errors; and how to solve them
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What are the syntax errors?
PHP belongs to the C-style and imperative programming languages. It has rigid grammar rules, which it cannot recover from when encountering misplaced symbols or identifiers. It can't guess your coding intentions.
Most important tips
There are a few...