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SQL Server reports 'Invalid column name', but the column is present and the query works through mana
...ou are using profiler to reproduce performance issues, remember to include all the set options, particularly ARITHABORT to truly duplicate the query (and it's cached plan)
– Nick.McDermaid
May 18 '16 at 1:15
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Hibernate: “Field 'id' doesn't have a default value”
...on the database even after an execution of SchemaUpdate.
If the error actually seems to lack a sensible explanation, try recreating the database (or at least creating a new one) and scaffolding it with SchemaExport.
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Why is this inline-block element pushed downward?
... and I want to understand that why #firstDiv is being pushed downward by all browsers. I really want to understand the inner workings of the fact that why its being pushed downward rather than pulling it upward by one way or another. (and I know how to align their tops :))
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What is the difference between the 'COPY' and 'ADD' commands in a Dockerfile?
... a nutshell, the major difference is that ADD can do more than COPY:
ADD allows <src> to be a URL
Referring to comments bellow, the ADD documentation states that:
If is a local tar archive in a recognized compression format (identity, gzip, bzip2 or xz) then it is unpacked as a director...
Visibility of global variables in imported modules
I've run into a bit of a wall importing modules in a Python script. I'll do my best to describe the error, why I run into it, and why I'm tying this particular approach to solve my problem (which I will describe in a second):
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Why am I getting ibtool failed with exit code 255?
All of a sudden I can't build my project. I get the following compiler error:
33 Answers
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Where to put include statements, header or source?
... if I include that header file in my source, then will my source file have all of the included files that were in my header? Or should I just include them in my source file only?
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ASP.NET MVC Performance
...ing potential perf targets. As we move towards Beta and RTM, we will internally be doing more perf testing. However, I'm not sure what our policy is on publishing results of perf tests.
In any case, any such tests really need to consider real world applications...
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Double Iteration in List Comprehension
...f_words
I like to think of list comprehension as stretching code horizontally.
Try breaking it up into:
# List Comprehension
[word for sentence in text for word in sentence]
Example:
>>> text = (("Hi", "Steve!"), ("What's", "up?"))
>>> [word for sentence in text for word in...
How to debug an apache virtual host configuration?
...d (Ubuntu)
apache2ctl -t
# MacOS
apachectl -t
List virtual hosts
To list all virtual hosts, and their locations:
# Red Hat-based (Fedora, CentOS) and OSX
httpd -S
# Debian-based (Ubuntu)
apache2ctl -S
# MacOS
apachectl -S
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