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How to change a nullable column to not nullable in a Rails migration?
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edited Mar 17 '18 at 12:42
Dorian
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answered...
INSTALL_FAILED_NO_MATCHING_ABIS when install apk
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24 Answers
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Active
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Reading an Excel file in PHP [closed]
...ted Sep 10 '10 at 18:53
user229044♦
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answered Feb 19 '09 at 3:07
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[SOLVED] Can't send payload > 23bytes(MTU setted to 128bytes) - #9 by ...
...ary: #ffffff;
--tertiary: #0088cc;
--quaternary: #e45735;
--highlight: #ffff4d;
--success: #009900;
}
}
/* then deal with dark scheme */
@media (prefers-color-scheme: dark) {
:root {
--primary: #...
What is the difference between substr and substring?
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answered Sep 19 '10 at 11:41
Delan AzabaniDelan Azabani
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How can I multiply and divide using only bit shifting and adding?
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How to print a dictionary line by line in Python?
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145
for x in cars:
print (x)
for y in cars[x]:
print (y,':',cars[x][y])
output:
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What is the string length of a GUID?
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Guid.NewGuid().ToString() => 36 characters (Hyphenated)
outputs: 12345678-1234-1234-1234-123456789abc
Guid.NewGuid().ToString("D") => 36 characters (Hyphenated, same as ToString())
outputs: 12345678-1234-1234-1234-123456789abc
Guid.NewGuid().ToString("N") => 32 characters (Digits only)
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How to get cumulative sum
...| 1 | 10 | 10 |
| 2 | 12 | 22 |
| 3 | 3 | 25 |
| 4 | 15 | 40 |
| 5 | 23 | 63 |
Edit: this is a generalized solution that will work across most db platforms. When there is a better solution available for your specific platform (e.g., gareth's), use it!
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