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Improving bulk insert performance in Entity framework [duplicate]

I want to insert 20000 records in a table by entity framework and it takes about 2 min. Is there any way other than using SP to improve its performance. This is my code: ...
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The relationship could not be changed because one or more of the foreign-key properties is non-nulla

I am getting this error when I GetById() on an entity and then set the collection of child entities to my new list which comes from the MVC view. ...
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Are class names in CSS selectors case sensitive?

... CSS selectors are generally case-insensitive; this includes class and ID selectors. But HTML class names are case-sensitive (see the attribute definition), and that's causing a mismatch in your second example. This has not changed in HTML5.1 This is because the case-sensitivity of selecto...
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What is the difference between vmalloc and kmalloc?

I've googled around and found most people advocating the use of kmalloc , as you're guaranteed to get contiguous physical blocks of memory. However, it also seems as though kmalloc can fail if a contiguous physical block that you want can't be found. What are the advantages of having a contig...
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Java: Path vs File

...hat said, java.nio.file.Path is part of the more modern java.nio.file lib, and does everything java.io.File can, but generally in a better way, and more. For new projects, use Path. And if you ever need a File object for legacy, just call Path#toFile() Migrating from File to Path This Oracle pa...
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Javascript and regex: split string and keep the separator

... I don't understand why everybody is using /g – Sarsaparilla Jan 11 '17 at 18:22 1 ...
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restrict edittext to single line

possible duplicate : android-singleline-true-not-working-for-edittext 23 Answers 23 ...
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What is the difference between include and require in Ruby?

My question is similar to " What is the difference between include and extend in Ruby? ". 11 Answers ...
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“Comparison method violates its general contract!”

...de throw an exception, "Comparison method violates its general contract!", and how do I fix it? 11 Answers ...
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chrome undo the action of “prevent this page from creating additional dialogs”

... I need to re-enable alerting for debugging. Of course I can close the tab and reload it but Is there a better way? 7 Answ...