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What is the difference between AF_INET and PF_INET in socket programming?

... Protocol Family Meaning, AF_INET refers to addresses from the internet, IP addresses specifically. PF_INET refers to anything in the protocol, usually sockets/ports. Consider reading the man pages for socket(2) and bind(2). For the sin_addr field, just do something like the following to set it: ...
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How to create Temp table with SELECT * INTO tempTable FROM CTE Query

...Time, EventRecurring Bit, EventType int ) ;WITH Calendar AS (SELECT /*...*/) Insert Into #Temp Select EventID, EventStartDate, EventEndDate, PlannedDate as [EventDates], Cast(PlannedDate As datetime) AS DT, Cast(EventStartTime As time) AS ST,Cast(EventEndTime As time) AS ET, EventTitl...
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TCP vs UDP on video stream

...tivity; therefore TCP is more appropriate for replaying a video-on-demand. IP multicast significantly reduces video bandwidth requirements for large audiences; TCP prevents the use of IP multicast, but UDP is well-suited for IP multicast. Live video is normally a constant-bandwidth stream recorded o...
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how to detect search engine bots with php?

...s user agent with fake name and name it like "Googlebot"? I think checking ip range is more trustworthy! – Mojtaba Rezaeian Jul 1 '15 at 6:39  |  ...
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Select SQL Server database size

... Try this one - Query: SELECT database_name = DB_NAME(database_id) , log_size_mb = CAST(SUM(CASE WHEN type_desc = 'LOG' THEN size END) * 8. / 1024 AS DECIMAL(8,2)) , row_size_mb = CAST(SUM(CASE WHEN type_desc = 'ROWS' THEN size END) ...
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What is the maximum length of a URL in different browsers?

... Short answer - de facto limit of 2000 characters If you keep URLs under 2000 characters, they'll work in virtually any combination of client and server software. If you are targeting particular browsers, see below for more details specific limits. Longer answer -...
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What are the security risks of setting Access-Control-Allow-Origin?

...s a security risk, particularly if you allow resource sharing not just for selected resources but for every resource. In this context you should have a look at When is it safe to enable CORS?. share | ...
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What is the difference between char, nchar, varchar, and nvarchar in SQL Server?

...人民共和国',N'中华人民共和国'), (N'abc',N'abc'); SELECT C1, C2, LEN(C1) AS [LEN(C1)], DATALENGTH(C1) AS [DATALENGTH(C1)], LEN(C2) AS [LEN(C2)], DATALENGTH(C2) AS [DATALENGTH(C2)] FROM @T Returns Note that the 华 and ...
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Is there a float input type in HTML5?

...Elfayer's edit: quotes are optional in HTML unless you want to use certain characters. Personally I prefer to omit them where possible for better readability. – Dave Apr 2 '14 at 10:02 ...
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Where am I? - Get country

... Use this link http://ip-api.com/json ,this will provide all the information as json. From this json you can get the country easily. This site works using your current IP,it automatically detects the IP and sendback details. Docs http://ip-api.c...