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Adding 'serial' to existing column in Postgres
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edited Dec 11 '18 at 11:51
Mark Amery
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Find XOR of all numbers in a given range
... 4-bit numbers:
0000 <- 0 [a]
0001 <- 1 [1]
0010 <- 3 [a+1]
0011 <- 0 [0]
0100 <- 4 [a]
0101 <- 1 [1]
0110 <- 7 [a+1]
0111 <- 0 [0]
1000 <- 8 [a]
1001 <- 1 [1]
1010 <- 11 [a+1]
1011 <- 0 [0]
1100 <- 12 [a]
1101 <- 1 [1]
1110 <- 15 [a+1]
1111 ...
Guid is all 0's (zeros)?
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answered Nov 1 '11 at 20:00
Mark ByersMark Byers
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Linq: GroupBy, Sum and Count
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Jon SkeetJon Skeet
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Right way to initialize an OrderedDict using its constructor such that it retains order of initial d
...93C48.9099 6.97997 49.672 6.73443 49.672 5.93063C49.672 5.22043 48.9832 4.61182 48.1414 4.61182C47.4335 4.61182 46.7256 4.91628 46.0943 5.50789C45.7307 4.9328 45.2525 4.66231 44.6595 4.66231C43.6264 4.66231 43.1481 5.28821 43.1481 6.59048V11.9512C43.1481 13.2535 43.6264 13.8962 44.6595 13.8962C45.69...
How do you pass arguments to define_method?
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edited Aug 24 '18 at 11:31
answered Jun 19 '12 at 9:48
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How to securely save username/password (local)?
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edited May 23 '17 at 11:54
Community♦
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answered Sep 30 '12 at 1:38
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Increment a database field by 1
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Community♦
111 silver badge
answered May 4 '10 at 4:41
SampsonSampson
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How to limit depth for recursive file list?
...rto Zaccagni
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Webrick as production server vs. Thin or Unicorn?
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Jim DevilleJim Deville
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