sql - Test if Table Exists in Linked Server (Server Name is a Parameter) -


i need test if table exists in linked server, linked server parameter (it has be), that's why i'm using exec method. tried many ways didn't succeed.

declare @linkedservername varchar(50) declare @ds varchar(50) declare @username varchar(50) declare @pswd varchar(12) declare @tableexists int  set @ds = 'test\testdb' set @linkedservername = 'linkedserverautoadddrop' set @username = 'ua' set @pswd = 'pass' set @tableexists = 0  if not exists(select * sys.servers name = @linkedservername) begin     exec sp_addlinkedserver           @server=@linkedservername,         @srvproduct='',        @provider='sqlncli',         @datasrc=@ds      exec sp_addlinkedsrvlogin @linkedservername, n'false', null, @username, @pswd     exec sp_serveroption @server=@linkedservername, @optname='rpc', @optvalue='true'     exec sp_serveroption @server=@linkedservername, @optname='rpc out', @optvalue='true' end   exec('if (exists (select * openquery([' + @linkedservername + '], ''select * linkeddb.information_schema.tables table_name = ''''tablename''''''))) begin     exec (''set ' + @tableexists + ' = 1'')  end')  if (@tableexists = 1) begin     exec('insert ...') end

i use sp_executesql along output parameter this:

declare @sql nvarchar(max) = '' declare @tableexists bit;  set @sql = 'select @tableexists = case when tableexists = 0 0 else 1 end             openquery(' + quotename(@linkedservername)              + ', ''select tableexists = count(*)                      linkeddb.information_schema.tables                     table_name = ''''tablename'''''');';  execute sp_executesql @sql, n'@tableexists bit output', @tableexists out;  if (@tableexists = 1) begin     -- end;

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