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Oracle SQL: Update a table with data from another table
...le: Is the outer WHERE-clause necessary for correct results? Or do you use it only to speed up the query?
– Mathias Bader
Aug 5 '13 at 7:53
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How to check if element has any children in Javascript?
...an element which I am grabbing via .getElementById () . How do I check if it has any children?
8 Answers
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Need to understand the usage of SemaphoreSlim
...won't be more than 10 workers doing this work at the same time.
Calling WaitAsync on the semaphore produces a task that will be completed when that thread has been given "access" to that token. await-ing that task lets the program continue execution when it is "allowed" to do so. Having an asynch...
REST, HTTP DELETE and parameters
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No, it is not RESTful. The only reason why you should be putting a verb (force_delete) into the URI is if you would need to overload GET/POST methods in an environment where PUT/DELETE methods are not available. Judging from your...
How to get evaluated attributes inside a custom directive
...ttribute from my custom directive, but I can't find the right way of doing it.
5 Answers
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How to determine whether a Pandas Column contains a particular value
... entry in a Pandas column that has a particular value. I tried to do this with if x in df['id'] . I thought this was working, except when I fed it a value that I knew was not in the column 43 in df['id'] it still returned True . When I subset to a data frame only containing entries matching the ...
What is the difference between a Docker image and a container?
When using Docker, we start with a base image. We boot it up, create changes and those changes are saved in layers forming another image.
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Why does one often see “null != variable” instead of “variable != null” in C#?
...ifference in the excecution speed for the order in which you state the condition?
9 Answers
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How to add anything in through jquery/javascript?
I'm working with a CMS, which prevents editing HTML source for <head> element.
8 Answers
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How to communicate between iframe and the parent site?
The website in the iframe isn't located in the same domain , but both are mine, and I would like to communicate between the iframe and the parent site. Is it possible?
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