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Difference between a user and a schema in Oracle?
...des the EMP, DEPT and BONUS tables with various grants, and
other stuff.
SYS is a schema that includes tons of tables, views, grants, etc etc etc.
SYSTEM is a schema.....
Technically -- A schema is the set of metadata (data dictionary) used by the database,
typically generated using DDL. A sche...
How to get 0-padded binary representation of an integer in java?
...eger.toBinaryString(1)).replace(" ", "0")
Or implement your own logic to convert integers to binary representation with added left padding somewhere along the lines given in this so.
Or if you really need to pass numbers to format, you can convert your binary representation to BigInteger and then ...
Ruby, !! operator (a/k/a the double-bang) [duplicate]
...value of the operand. So when you chain two exclamation marks together, it converts the value to a boolean.
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How to get the path of a running JAR file?
...
To obtain the File for a given Class, there are two steps:
Convert the Class to a URL
Convert the URL to a File
It is important to understand both steps, and not conflate them.
Once you have the File, you can call getParentFile to get the containing folder, if that is what you nee...
Best way to test if a generic type is a string? (C#)
...de enumeration. Call the GetTypeCode method on classes that implement the IConvertible interface to obtain the type code for an instance of that class. IConvertible is implemented by Boolean, SByte, Byte, Int16, UInt16, Int32, UInt32, Int64, UInt64, Single, Double, Decimal, DateTime, Char, and Strin...
What does T&& (double ampersand) mean in C++11?
...ed for temporaries and for non-const lvalue references that are explicitly converted to rvalue references using the std::move function (it just performs the conversion). The following code both invoke the move constructor for f1 and f2:
foo f1((foo())); // Move a temporary into f1; temporary becom...
Reloading module giving NameError: name 'reload' is not defined
...as below. Use this in the top of the module (assumes python 3.4+).
import sys
if(sys.version_info.major>=3):
def reload(MODULE):
import importlib
importlib.reload(MODULE)
BTW reload is very much required if you use python files as config files and want to avoid rest...
Determining Whether a Directory is Writeable
...ould I want to, e.g. try to write something into every directory in my filesystem, to produce a list of writable locations?
– Tomasz Gandor
Apr 5 '16 at 8:20
4
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Check if string matches pattern
...
import re
import sys
prog = re.compile('([A-Z]\d+)+')
while True:
line = sys.stdin.readline()
if not line: break
if prog.match(line):
print 'matched'
else:
print 'not matched'
...
How to test if a double is an integer
...UE) {
return true;
} else {
return false;
}
}
To convert Double to Integer:
Integer intVariable = variable.intValue();
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