sql - Table variable in a stored procedure -


i create simple stored procedure take parameter existing tables.

i thought procedure should work:

@userid int, @tablename varchar(255) begin     if(@userid not null)     begin        update t        set t.productid = 100        dbo.[@tablename] t      end

when execute stored procedure table name, query completed errors:

invalid object name 'dbo.@tablename'.

any advice?

you'd have following:

declare @sql nvarchar(100) set @sql = 'update ' + @tablename + ' set t.productid = 100 ' exec sp_executesql @sql

note: have no where clause items in @tablename updated.


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