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Which is more efficient: Multiple MySQL tables or one large table?

...r details in my MySQL database. Originally it was set up in various tables meaning data is linked with UserIds and outputting via sometimes complicated calls to display and manipulate the data as required. Setting up a new system, it almost makes sense to combine all of these tables into one big tab...
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The JPA hashCode() / equals() dilemma

... @MRalwasser: I think you mean the right thing, it's just not the equals/hashCode() contract itself which is violated. But a mutable equals/hashCode does create problems with the Set contract. – Chris Lercher Feb...
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Create dynamic URLs in Flask with url_for()

... meaning that the function is def add(variable)? – endolith Jul 31 '15 at 3:51 5 ...
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Can vim monitor realtime changes to a file

...or is moved once, right and back left. and then nothing happens (... which means, that CursorHold is triggered, which means we have a loop) Additionally you can :set syntax=logtalk to color the log To stop the scrolling when using call feedkeys("G"), execute :set noautoread - now vim will tell, th...
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How can I convert this foreach code to Parallel.ForEach?

...fosb The problem is the question title was edited to completely change the meaning... so this answer no longer makes any sense. Having said that, it's still a poor answer – aw04 Sep 9 '16 at 14:29 ...
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How to generate random SHA1 hash to use as ID in node.js?

... SHA1's 160-bit (20-byte) possible outputs. Knowing this, it's not really meaningful for us to shasum our random bytes. It's like rolling a die twice but only accepting the second roll; no matter what, you have 6 possible outcomes each roll, so the first roll is sufficient. Why is this better? ...
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CASCADE DELETE just once

... If you really want DELETE FROM some_table CASCADE; which means "remove all rows from table some_table", you can use TRUNCATE instead of DELETE and CASCADE is always supported. However, if you want to use selective delete with a where clause, TRUNCATE is not good enough. USE WITH C...
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How to Loop through items returned by a function with ng-repeat?

... main point is to "initialise the array outside of the repeat" by whatever means... and @Nighto good call on promises – Mwayi Dec 28 '16 at 20:51 add a comment ...
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How to use shared memory with Linux in C

... int protection = PROT_READ | PROT_WRITE; // The buffer will be shared (meaning other processes can access it), but // anonymous (meaning third-party processes cannot obtain an address for it), // so only this process and its children will be able to use it: int visibility = MAP_SHARED | MA...
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How does this CSS produce a circle?

...ct your content edge, which results in your third example. What does this mean for our border-radius/circle? This means that your CSS rules result in a box that only consists of a border. Your rules state that this border should have a maximum width of 180 pixels on every side, while on the other ...