sp_DetalleArticulo :clave_articulo,:articulo_id,:opcion,:id_usuario,:pregunta Array ( [0] => 21000 [1] => 512 [2] => [Microsoft][ODBC Driver 11 for SQL Server][SQL Server]Subquery returned more than 1 value. This is not permitted when the subquery follows =, !=, <, <= , >, >= or when the subquery is used as an expression. )