1 Reply Latest reply on Jul 24, 2017 7:47 AM by Van Halbert

    What is the parsing order of the statement?

    cute u Newbie

      my vdb have two model a and b, a is mongdb,b is oracle

      i run sql below

      select * from a.cd_well where well_id = (select well_id from b.cd_well where well_id='1')

      the table a.cd_well have many count data,

      why this sql run for a long time,What is the parsing order of the statement

      whether first run (select well_id from b.cd_well where well_id='1')