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What is a regular expression for a MAC Address?
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The standard (IEEE 802) format for
printing MAC-48 addresses in
human-friendly form is six groups of
two hexadecimal digits, separated by
hyphens - or colons :.
So:
^([0-9A-Fa-f]{2}[:-]){5}([0-9A-Fa-f]{2})$
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How to convert timestamp to datetime in MySQL?
How to convert 1300464000 to 2011-03-18 16:00:00 in MySQL?
5 Answers
5
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what does the __file__ variable mean/do?
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answered Feb 14 '12 at 3:55
paxdiablopaxdiablo
736k199199 gold badges14231423 silver badges17931793 bronze badges
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Return number of rows affected by UPDATE statements
...ARE @RowCount2 INTEGER
DECLARE @RowCount3 INTEGER
DECLARE @RowCount4 INTEGER
UPDATE Table1 Set Column = 0 WHERE Column IS NULL
SELECT @RowCount1 = @@ROWCOUNT
UPDATE Table2 Set Column = 0 WHERE Column IS NULL
SELECT @RowCount2 = @@ROWCOUNT
UPDATE Table3 Set Column = 0 WHE...
Why are unsigned int's not CLS compliant?
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4 Answers
4
Active
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Setting an object to null vs Dispose()
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jmvtrinidad
2,34733 gold badges1717 silver badges4040 bronze badges
answered Feb 22 '09 at 9:47
Jon SkeetJon Skeet
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【内核源码】linux UDP实现 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
... .owner = THIS_MODULE,
.close = udp_lib_close,
.connect = ip4_datagram_connect,
.disconnect = udp_disconnect,
.ioctl = udp_ioctl,
.destroy = udp_destroy_sock,
.setsockopt = udp_setsockopt,
.getsockopt = udp_getsockopt,
.sendmsg = udp_sendmsg,
.recvmsg ...
Rails migrations: self.up and self.down versus change
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answered Apr 28 '12 at 16:54
Aldo 'xoen' GiambellucaAldo 'xoen' Giambelluca
9,56377 gold badges2626 silver badges3939 bronze badges
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svn : how to create a branch from certain revision of trunk
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4 Answers
4
Active
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Tying in to Django Admin's Model History
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Van GaleVan Gale
40.8k99 gold badges6565 silver badges7878 bronze badges
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