OR « Select Query « Oracle PL / SQL

1.Query specific columns with where clause and 'or' operator
2.OR operator
3.OR operator : combine date compare and number compare
4.Query specific columns with where clause, or operator and order by
5.(1=1 or 1=0) and 0=1
6.1=1 or (1=0 and 0=1) (put and into parentheses)
7.1=1 or 1=0 and 0=1 (no parentheses)
8.Use or to connect two boolean expression
9.OR operator combines two comparisons into one