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java.sql.SQLException: - ORA-01000: maximum open cursors exceeded
...rsor is a resource on the database that holds the state of a query, specifically the position where a reader is in a ResultSet. Each SELECT statement has a cursor, and PL/SQL stored procedures can open and use as many cursors as they require. You can find out more about cursors on Orafaq.
A databas...
How can I get a collection of keys in a JavaScript dictionary? [duplicate]
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To loop through the "dictionary" (we call it object in JavaScript), use a for in loop:
for(var key in driversCounter) {
if(driversCounter.hasOwnProperty(key)) {
// key = keys, left of the ":"
// driversCounter[key] = value, r...
TypeError: Missing 1 required positional argument: 'self'
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You can call the method like pump.getPumps(). By adding @classmethod decorator on the method. A class method receives the class as the implicit first argument, just like an instance method receives the instance.
class Pump:
def __in...
Associative arrays in Shell scripts
...e files are actually never guaranteed to be written to the disk unless you call sync; for temporary files like this with a short lifetime, it's not unlikely that many of them will never be written to disk.
I did a few benchmarks of Irfan's code, Jerry's modification of Irfan's code, and my code, us...
Is there a short contains function for lists?
...ther have said, you may also be interested to know that what in does is to call the list.__contains__ method, that you can define on any class you write and can get extremely handy to use python at his full extent.
A dumb use may be:
>>> class ContainsEverything:
def __init__(self)...
How do I count unique values inside a list
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For ndarray there is a numpy method called unique:
np.unique(array_name)
Examples:
>>> np.unique([1, 1, 2, 2, 3, 3])
array([1, 2, 3])
>>> a = np.array([[1, 1], [2, 3]])
>>> np.unique(a)
array([1, 2, 3])
For a Series there is a f...
NAnt or MSBuild, which one to choose and when?
... for those .user files and will import them into the build process automatically. See: ahmed0192.blogspot.com/2006/11/…
– CleverPatrick
Mar 16 '10 at 18:07
3
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Checking if a string can be converted to float in Python
... very well.
There is another method available via a third-party module called fastnumbers (disclosure, I am the author); it provides a function called isfloat. I have taken the unittest example outlined by Jacob Gabrielson in this answer, but added the fastnumbers.isfloat method. I should also...
Bat file to run a .exe at the command prompt
... its possible to run the bat file from web browser? like a javascript to call the bat file ??
– Karthi
Feb 22 '17 at 4:40
5
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How do you find the last day of the month? [duplicate]
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@César: It's a really bad idea to call DateTime.Today multiple times like this. It could give different results half way through, if you call it around midnight. Far better to write a method that accepts a single DateTime and uses that consistently.
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