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Delete sql rows where IDs do not have a match from another table
... @Pacerier - "wrong" is a bit strong. To make sure people understand, the answers do work if fileidis non-nullable. Also, the third solution (NOT IN) only requires that f.id by non-nullable. Presumably that is a primary key, so it would be.
– ToolmakerSteve
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How to get the day of week and the month of the year?
I don't know much about Javascript, and the other questions I found are related to operations on dates, not only getting the information as I need it.
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Stop pip from failing on single package when installing with requirements.txt
...sed '/^\s*$/d' | xargs -n 1 pip install to remove anything in the comments and get rid of empty lines.
– Narek
Apr 17 '18 at 20:47
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How to scroll to top of long ScrollView layout?
For part of my app, the user is presented with a list of names and is asked to group them as they see fit.
15 Answers
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Assign multiple columns using := in data.table, by group
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Thanks for this answer and the examples. How should I modify the following line in order to get two columns for each objectName from the dim output, rather than one column with two rows? data.table(objectName=ls())[,c("rows","cols"):=dim(get(objec...
Get mouse wheel events in jQuery?
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There's a plugin that detects up/down mouse wheel and velocity over a region.
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is there any way to force copy? copy without overwrite prompt, using windows?
I want to write a list of windows commands(it's a long list) where it does all these magical things for me, but whenever I use copy, it stops to ask fro overwrite prompt. When I type yes, it overwrites the old file then just stops there.
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R object identification
... often ending up with a function producing output for which I don't understand the output data type. I'm expecting a list and it ends up being a list of lists or a data frame or something else. What's a good method or workflow for figuring out the output data type when first using a function?
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How to add line break for UILabel?
...Attributes then setting the frame, you can just call sizeToFit to work-out and set the frame size in one quick step.
– jimmyjudas
Aug 13 '15 at 8:37
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C++11 introduced a standardized memory model. What does it mean? And how is it going to affect C++ p
C++11 introduced a standardized memory model, but what exactly does that mean? And how is it going to affect C++ programming?
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