D. To join two tables through an equijoin, the columns in the join condition must be primary key and foreign key columns. E. You can join n tables (all having single column primary keys) in a SQL statement by specifying a minimum of n-1 join conditions. 点击查看答案 第9题 You are...
In the statement, which capabilities of a SELECT statement are performed?() A. Selection, projection, join B. Difference, projection, join C. Selection, intersection, join D. Intersection, projection, join E. Difference, projection, product ...