我有一个表格,用户密码领域有变式数据类型,因此,我感到困惑的是,如果我把数据保存到用户密码领域,那就是一种表格,因为当我用斜体数据时,它给我留下错误。
www.un.org/Depts/DGACM/index_spanish.htm 页: 1 为了在其中储存座标,您必须将其投到<条码>。
declare @t table (id int identity, pwd varbinary(50))
insert into @t (pwd) values (cast( secret as varbinary(50)))
但是,对于密码而言,varbinary 一栏通常储存某种种类的洗衣。 例如,使用HashBytes功能:
insert into @t (pwd) values (HashBytes( sha1 , secret ));
避开单向 has,而不是真正的密码,是比较安全的。 您可以核实密码是否与:
select * from @t where pwd = HashBytes( sha1 , secret )
但是,你看一看桌子是无法检索密码的。 因此,只有终端用户知道他的密码,而即便是德国统计局也无法检索。
你们需要明确投放VARCHAR。
SELECT CAST(N Test as VARBINARY)
页: 1 服务器错误信息是说的。
Implicit conversion from data type varchar to varbinary is not allowed.
页: 1 服务器需要从varchar to varbinary,按照在MSDN中CAST和CONVERT的大型表格计算。
该表将设一个var英一栏,储存按sys.sql_logins 。
SELECT CAST(N Test as VARBINARY)
页: 1
SELECT CAST(N Test as VARBINARY(30))
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