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<=10; In sum, the difference between ROWNUM and ROWID is that ROWNUM is temporary while ROWID is permanent. Another difference is that ROWID can be used to fetch a row, while ROWNUM only has meaning within the context of a single SQL statement, a way of referencing rows within a fetched result set. You can buy it direct from the publisher for 30%-off and get instant access to the code depot of Oracle tuning scripts.