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How to check for Is not Null And Is not Empty string in SQL server?
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edited Aug 22 '14 at 22:58
answered Dec 28 '11 at 19:15
Ma...
Android:What is difference between setFlags and addFlags for intent
... look like this: 1, 10, 100, 1000, etc... (which in this case are 1, 2, 4, 8). So, what addFlags does is appending the integer you pass using the | operator.
// example...
// value of flags: 1
intent.setFlags(2|4);
// now flags have this value: 110
intent.addFlags(8);
// now flags have this valu...
Method Overloading for null argument
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218
Java will always try to use the most specific applicable version of a method that's available (s...
How can I obtain the element-wise logical NOT of a pandas Series?
...ean Series, use ~s:
In [7]: s = pd.Series([True, True, False, True])
In [8]: ~s
Out[8]:
0 False
1 False
2 True
3 False
dtype: bool
Using Python2.7, NumPy 1.8.0, Pandas 0.13.1:
In [119]: s = pd.Series([True, True, False, True]*10000)
In [10]: %timeit np.invert(s)
10000 loops, bes...
in_array() and multidimensional array
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answered Nov 8 '10 at 21:45
jwuellerjwueller
27.9k44 gold badges5959 silver badges6868 bronze badges
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How do I convert a byte array to Base64 in Java?
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Java 8+
Encode or decode byte arrays:
byte[] encoded = Base64.getEncoder().encode("Hello".getBytes());
println(new String(encoded)); // Outputs "SGVsbG8="
byte[] decoded = Base64.getDecoder().decode(encoded);
println(new String...
psql: FATAL: database “” does not exist
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edited Apr 13 '18 at 9:11
Amit Thawait
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Return first match of Ruby regex
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answered Feb 6 '09 at 8:53
PresidentenPresidenten
5,7271111 gold badges4141 silver badges5252 bronze badges
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sqlalchemy flush() and get inserted id?
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zzzeekzzzeek
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How to remove specific elements in a numpy array
...specific question:
import numpy as np
a = np.array([1, 2, 3, 4, 5, 6, 7, 8, 9])
index = [2, 3, 6]
new_a = np.delete(a, index)
print(new_a) #Prints `[1, 2, 5, 6, 8, 9]`
Note that numpy.delete() returns a new array since array scalars are immutable, similar to strings in Python, so each time a c...