2 Replies Latest reply: Jul 3, 2015 10:35 AM by Jjotavve RSS

    Check if a table is already loaded

    Bin Xue



          I would like to check if a table exist before dropping this table. I used this function


                if noOfRows('mytable')>0 then

                drop table mytable; 



         However, later i found that if a table has been created but contains no data. noOfRows function also return a number which is less or equals to zero. The scenario is as below:



      load *

      from mytable;

      inner join

      load * from



      The above scenario creates mytable and makes it empty by a inner join.


      This causes my table not being dropped. Could anyone tell me if there is another way of checking the existence of a table?