Oracle day03 Joint Table Query

Why query for table joins? Query employee information with department name SALES How do I join queries to tables? Two ways: Sql 1992 and sql1999 sql1992sql classificationCartesian product (table multiplier)2. Use'='for the join condition of the equivalence join table3. Join conditions for non-equal join tables use'>, >=, <, <=,! ...

Added by chauffeur on Thu, 16 May 2019 08:02:13 +0300