Using Oracle SQL Plus 11g In lectures, the professor uses the notation T1 := select age > 20 (Student); project sname(T1); However, get the error: unknown command beginning "T1 := ...". I know T1, T2 etc. are temporary tables however, am I supposed to declare a global temporary table, create a table etc. Please ignore this question, Chegg forum is not an appropriate place for this type of question (better to ask TA) however, think it is solved. Using "Create global temporary table T1 on commit preserve rows as select