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Postgres: SQL to list table foreign keys
Is there a way using SQL to list all foreign keys for a given table? I know the table name / schema and I can plug that in.
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Check if array is empty or null
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As long as your selector is actually working, I see nothing wrong with your code that checks the length of the array. That should do what you want. There are a lot of ways to clean up your code to be simpler and more readable. Here's a cleaned up version...
What is the Windows version of cron? [closed]
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Is there also a way to invoke this feature (which based on answers is called the Task Scheduler) programatically [...]?
Task scheduler API on MSDN.
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How to use the new affix plugin in twitter's bootstrap 2.1.0?
...her specifying data-offset-top in your HTML. Instead, specify it when you call .affix():
$('#nav').affix({
offset: { top: $('#nav').offset().top }
});
The advantage here is that you can change the layout of your site without needing to update the data-offset-top attribute. Since this uses ...
Is 'float a = 3.0;' a correct statement?
...terals notation in specific scenarios.
For performance reasons:
Specifically, consider:
float foo(float x) { return x * 0.42; }
Here the compiler will emit a conversion (that you will pay at runtime) for each returned value. To avoid it you should declare:
float foo(float x) { return x * 0.42...
Why is a “GRANT USAGE” created the first time I grant a user privileges?
... of a CREATE USER statement. When a user is created in that way, they initially have no privileges so they are merely granted USAGE.
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Thread.Sleep replacement in .NET for Windows Store
...continue 30 seconds later, but the thread will not be blocked, just as for all await expressions.
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What is the “double tilde” (~~) operator in JavaScript? [duplicate]
... @ghoppe: Worth noting that it differs from .floor() in that it actually just removes anything to the right of the decimal. This makes a difference when used against a negative number. Also, it will always return a number, and will never give you NaN. If it can't be converted to a number, you...
Javascript Thousand Separator / string format [duplicate]
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Really Really Appreciate It // But How Can i Convert that string (with commas) to a number ?
– LostLord
Sep 20 '10 at 16:51
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Get string character by index - Java
...???????????";
Iterate of chars
The first solution is a simple loop over all char of the string:
/* 1 */
System.out.println(
"\n\nUsing char iterator (do not work for surrogate pairs !)");
for (int pos = 0; pos < str.length(); ++pos) {
char c = str.charAt(pos);
System.out.print...