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byte[] to hex string [duplicate]

...); } static string LinqConcat(byte[] data) { return string.Concat(data.Select(b => b.ToString("X2")).ToArray()); } static string LinqJoin(byte[] data) { return string.Join("", data.Select( bin => bin.ToString("X2") ).ToArray()); } static string LinqAgg(b...
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Remove all spaces from a string in SQL Server

... Simply replace it; SELECT REPLACE(fld_or_variable, ' ', '') Edit: Just to clarify; its a global replace, there is no need to trim() or worry about multiple spaces for either char or varchar: create table #t ( c char(8), v varchar(8))...
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Which terminal command to get just IP address and nothing else?

I'm trying to use just the IP address (inet) as a parameter in a script I wrote. 28 Answers ...
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TCP 的那些事儿(下) - 更多技术 - 清泛网 - 专注C/C++及内核技术

...己的特点来关闭) setsockopt(sock_fd, IPPROTO_TCP, TCP_NODELAY, (char *)&value,sizeof(int)); 另外,网上有些文章说TCP_CORK的socket option是也关闭Nagle算法,这个还不够准确。TCP_CORK是禁止小包发送,而Nagle算法没有禁止小包发送,只是禁止了大...
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Getting visitors country from their IP

I want to get visitors country via their IP... Right now I'm using this ( http://api.hostip.info/country.php?ip= ...... ) 2...
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Quick Way to Implement Dictionary in C

...mp;matF }, }; mat* getMat(char * str) { stringToMat* pCase; mat * selected = NULL; if (str != NULL) { /* runing on the dictionary to get the mat selected */ for(pCase = matCases; pCase != matCases + sizeof(matCases) / sizeof(matCases[0]); pCase++ ) { ...
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How to determine a user's IP address in node

How can I determine the IP address of a given request from within a controller? For example (in express): 19 Answers ...
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Is SQL or even TSQL Turing Complete?

...(0); -- Initialization of temporary variables DECLARE @CodeLength INT = (SELECT COUNT(*) FROM @CodeTable); DECLARE @CodeIndex INT = 0; DECLARE @Pointer INT = 1; DECLARE @InputIndex INT = 0; DECLARE @Command CHAR(1); DECLARE @Depth INT; -- Main calculation cycle WHILE @CodeIndex < @...
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How to send data to local clipboard from a remote SSH session

... I often to this in vim. To do so, select what you want to copy in visual mode, then type: :'<,'>w !ssh desktop pbcopy – Mike Brennan Nov 30 '12 at 5:04 ...
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How to make connection to Postgres via Node.js

...values($1, $2)", ['John', x]); x = x - 1; } var query = client.query("SELECT * FROM junk"); //fired after last row is emitted query.on('row', function(row) { console.log(row); }); query.on('end', function() { client.end(); }); //queries can be executed either via text/parameter val...