Groups > comp.databases.ms-sqlserver > #1776

Re: Varbinary and nvarchar problem

From	Erland Sommarskog <esquel@sommarskog.se>
Newsgroups	comp.databases.ms-sqlserver
Subject	Re: Varbinary and nvarchar problem
Date	2014-06-23 21:33 +0200
Organization	Erland Sommarskog
Message-ID	<XnsA355DB51B5C3CYazorman@127.0.0.1> (permalink)
References	(1 earlier) <XnsA351EB263B565Yazorman@127.0.0.1> <lnvlt4$nnk$1@dont-email.me> <XnsA352A57E3723Yazorman@127.0.0.1> <lo9b9q$p9g$1@dont-email.me> <lo9dg7$8bf$1@dont-email.me>

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Shelly (sheldonlg@thevillages.net) writes:
> I also tried converting each piece int the HASHBYTES to a varchar or to 
> an nvarchar and still got errors in the pieces -- even though the one 
> without any conversions -- the plain HASHBYTES -- worked. I also tried 
> CAST, but still had those errors.
> 
> Why does
> 
> CONVERT(VARCHAR(32), something-that-works, 2)
> 
> fail -- and with a conversion to int?
> 

Because you use it in expression which also includes an integer value, 
(which because of the data-type precedence rules in SQL Server leads to an 
implicit conversion) or you are trying to insert the data into an integer
column/variable.

That is all I can say without seeing the rest of the code and the
table definitions. Well, one more thing: watch out for triggers with
dynamic SQL.

-- 
Erland Sommarskog, Stockholm, esquel@sommarskog.se

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Thread

Varbinary and nvarchar problem Shelly <sheldonlg@thevillages.net> - 2014-06-19 15:00 -0400
  Re: Varbinary and nvarchar problem Erland Sommarskog <esquel@sommarskog.se> - 2014-06-19 23:06 +0200
    Re: Varbinary and nvarchar problem Shelly <sheldonlg@thevillages.net> - 2014-06-19 17:49 -0400
      Re: Varbinary and nvarchar problem Erland Sommarskog <esquel@sommarskog.se> - 2014-06-20 16:16 +0200
        Re: Varbinary and nvarchar problem Shelly <sheldonlg@thevillages.net> - 2014-06-21 09:17 -0400
        Re: Varbinary and nvarchar problem Shelly <sheldonlg@thevillages.net> - 2014-06-23 09:49 -0400
          Re: Varbinary and nvarchar problem Shelly <sheldonlg@thevillages.net> - 2014-06-23 10:27 -0400
            Re: Varbinary and nvarchar problem Erland Sommarskog <esquel@sommarskog.se> - 2014-06-23 21:33 +0200
              Re: Varbinary and nvarchar problem Shelly <sheldonlg@thevillages.net> - 2014-06-23 16:35 -0400
                Re: Varbinary and nvarchar problem Erland Sommarskog <esquel@sommarskog.se> - 2014-06-24 07:19 +0000

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