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2024年12月7日签到记录贴 - 签到区 - 清泛IT社区,为创新赋能!
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Can't connect to localhost on SQL Server Express 2012 / 2016
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125
+100
Goto St...
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Approximate cost to access various caches and main memory?
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202 ns - CPU cross-QPI/NUMA worst case on XEON E7-*
325 ns - CPU cross-QPI/NUMA worst case on XEON E5-46*
10,000 ns - Compress 1K bytes with Zippy PROCESS
20,000 ns - Send 2K bytes over 1 Gbps NETWORK
250,000 ns - Read 1 MB sequentially from MEMORY
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How can I convert bigint (UNIX timestamp) to datetime in SQL Server?
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answered May 25 '10 at 11:57
KM.KM.
92.6k3232 gold badges160160 silver badges201201 bronze badges
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How to remove files from git staging area?
...ter git init
– Patrizio Bertoni
Feb 25 '15 at 16:13
5
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Why do == comparisons with Integer.valueOf(String) give different results for 127 and 128?
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@user3152527: There's a sizable difference - one is considered an object, which means you can call methods and interact with it in abstract data structures, like List. The other is a primitive, which is just a raw value.
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Split a string at uppercase letters
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answered Apr 19 '19 at 19:25
EndlisnisEndlisnis
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How do I find which program is using port 80 in Windows? [duplicate]
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answered Dec 25 '09 at 8:09
n0rdn0rd
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