How to connect to SQL Database with C# ?

How do you connect to a sql database using C# ,How to connect to SQL Database with C# ,How To: Connect to SQL using C# and SELECT INSERT UPDATE, .Net C# how to connect to external SQL Server database ? http://www.youtube.com/watch?v=WG3Hwk7Yp48 -~-~~-~~~-~~-~- Please watch: "The Night Killer ( Horror short film )" https://www.seevid.ir/fa/w/RlFdVrpZ2Dk -~-~~-~~~-~~-~-

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