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