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“INSERT IGNORE” vs “INSERT … ON DUPLICATE KEY UPDATE”
...ON DUPLICATE KEY UPDATE.
If you use INSERT IGNORE, then the row won't actually be inserted if it results in a duplicate key. But the statement won't generate an error. It generates a warning instead. These cases include:
Inserting a duplicate key in columns with PRIMARY KEY or UNIQUE constrain...
Create an instance of a class from a string
...of a class based on the fact I know the name of the class at runtime. Basically I would have the name of the class in a string.
...
NSLog/printf specifier for NSInteger?
... z and t modifiers to handle NSInteger and NSUInteger without warnings, on all architectures.
You want to use %zd for signed, %tu for unsigned, and %tx for hex.
This information comes courtesy of Greg Parker.
Original answer:
The official recommended approach is to use %ld as your specifier, a...
CSS text-overflow: ellipsis; not working?
...
Note: white-space: nowrap is actually not necessary. We can still see the ellipses even without it. For multiple lines text-overflow, see this SO
– gfaceless
Jul 9 '15 at 10:38
...
How to test if list element exists?
...
This is actually a bit trickier than you'd think. Since a list can actually (with some effort) contain NULL elements, it might not be enough to check is.null(foo$a). A more stringent test might be to check that the name is actually defin...
HTML/Javascript change div content
...L rather than innerText and textContent because innerHTML is compatible to all browsers.
– Minh Triet
Jun 26 '13 at 1:59
...
How to get just the responsive grid from Bootstrap 3?
...nd you'll get the CSS and JS that you chose.
Open up the CSS and remove all but the grid. They include some normalize stuff too. And you'll need to adjust all the styles on your site to box-sizing: border-box - http://www.w3schools.com/cssref/css3_pr_box-sizing.asp
...
Changing names of parameterized tests
...ed, fib(fInput));
}
private int fib(int x) {
// TODO: actually calculate Fibonacci numbers
return 0;
}
}
will give names like testFib[1: fib(1)=1] and testFib[4: fib(4)=3]. (The testFib part of the name is the method name of the @Test).
...
Copy values from one column to another in the same table
...ith the update command... Without a WHERE clause, this command will update ALL records in the table.
– gmo
Oct 6 '16 at 10:51
...
How to assert greater than using JUnit Assert?
... such-and-such wasn't greater than so-and-so.
You could also add hamcrest-all as a dependency to use matchers. See https://code.google.com/p/hamcrest/wiki/Tutorial:
import static org.hamcrest.MatcherAssert.assertThat;
import static org.hamcrest.Matchers.*;
assertThat("timestamp",
Long....