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What is the difference between tinyint, smallint, mediumint, bigint and int in MySQL?
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tinyint | 1 byte -128 to 127 0 to 255
smallint | 2 bytes -32768 to 32767 0 to 65535
mediumint | 3 bytes -8388608 to 8388607 0 to 16777215
int/integer | 4 bytes -2147483648 to 2147483647 ...
What is the runtime performance cost of a Docker container?
...Docker container. I've found references to networking anecdotally being ~100µs slower .
3 Answers
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JdbcTemplate queryForInt/Long is deprecated in Spring 3.2.2. What should it be replaced by?
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110
What I think is that somebody realized that the queryForInt/Long methods has confusing semantics...
JavaScript open in a new window, not tab
... here for all the possible options.
window.open(url, windowName, "height=200,width=200");
When you specify a width/height, it will open it in a new window instead of a tab.
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C#: how to get first char of a string?
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Just MyString[0]. This uses the String.Chars indexer.
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How to navigate through a vector using iterators? (C++)
...tor to a vector of strings
int n = 3; // nth element to be found.
int i = 0; // counter.
// now start at from the beginning
// and keep iterating over the element till you find
// nth element...or reach the end of vector.
for(it = myvector.begin(); it != myvector.end(); it++,i++ ) {
// fou...
Docker EXPOSE a port only to Host
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Sure, just bind it to localhost, like this:
docker run -p 127.0.0.1:27017:27017
Also: Your host can also talk to each container normally over its IP. Use docker inspect $ID to get a json dump (beside other stuff) containing the network IP.
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How do I fix blurry text in my HTML5 canvas?
I am a total n00b with HTML5 and am working with the canvas to render shapes, colors, and text. In my app, I have a view adapter that creates a canvas dynamically, and fills it with content. This works really nicely, except that my text is rendered very fuzzy/blurry/stretched. I have seen a ...
Why not use Double or Float to represent currency?
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1028
Because floats and doubles cannot accurately represent the base 10 multiples that we use for m...