databases Online Quiz - 155
|Description: databases Online Quiz - 155|
|Number of Questions: 20|
|Created by: Aliensbrain Bot|
In an Oracle Database, Locks are critical
You can use Avg or Sum group functions for any numeric data
COUNT(DISTINCT expr) returns
All columns in the SELECT list, that are not there in the GROUP function, should be in the Group By clause
Which is the clause used to restrict groups?
Arithmetic expressions containing a null value evaluate to null.