In an OLTP environment, if a query joins two tables on their primary key, which of the following join methods is preferred?
A. Hash join
B. Star join
C. Merge join
D. Nested-loop join
来自 “ ITPUB博客 ” ,链接:https://blog.itpub.net/9524210/viewspace-376280/
,如需转载,请注明出处,否则将追究法律责任。