MS-SQL中是否有与SHA1()等价的语句?

SQL Server 2005及更高版本具有 HashBytes() 作用

SELECT sys.fn_varbintohexsubstring(0, HashBytes('SHA1', 'password'), 1, 0)

看见 http://accessrichard.blogspot.co.nz/2010/12/sql-server-and-net-equivalent-to-php.html 更多细节。

来自谷歌集团- A Possibility

http://www.stev.org/post/2011/01/30/MS-SQL-SHASum-Support.aspx

MSSQL服务器

HASHBYTES('SHA1', CAST('abcd@#' as nvarchar(max)))
CONVERT(VARCHAR(MAX), HASHBYTES('SHA1', CAST('abcd@#' as nvarchar(max))) , 2)

/* result */
0x77DD873DBAB2D81786AB9AE6EA91B1F59980E48C  
77DD873DBAB2D81786AB9AE6EA91B1F59980E48C

C#

using (SHA1Managed sha1 = new SHA1Managed())
{
    string input = "abcd@#";
    var hash = sha1.ComputeHash(Encoding.Unicode.GetBytes(input));
    var sb = new StringBuilder(hash.Length * 2);
    
    foreach (byte b in hash)
    {
        sb.Append(b.ToString("X2")); // can be "x2" if you want lowercase
    }
    return sb.ToString();
}
//result "77DD873DBAB2D81786AB9AE6EA91B1F59980E48C"

http://blogs.msdn.com/sqlcat/archive/2005/09/16/469257.aspx