Boat Hull Flotation StyroFoam Help! Hey everybody, I am wondering about pulling the styrofoam out of my hull in my 10 x 4 foot jon boat. It is Fiberglass and has Hull shaped StyroFoam in the front and the rear and then under the cup holders.
This Oracle tutorial explains how to use the Oracle/PLSQL ROWNUM function with syntax and examples. The Oracle/PLSQL ROWNUM function returns a number that represents the order that a row is selected by Oracle from a table or joined tables. The first row has a ROWNUM of 1, the second has a ROWNUM of 2, and so on.
rownum is the temp num assigned for the return rows per statement query. It will change as per the query statement. It can be used with =1 or < 10 id number . Where as rowid is the id assigned by the. Oracle while creating record in database. It is permanent & we can query with = sign & it will not change. or depend on query.