ORACLE VERSIONS 用法
OCA SQL试题Evaluate the following statements: What would be the outcome of the above query? ...
OCA SQL试题Evaluate the following statements: What would be the outcome of the above query? ...
insert into (<select clause> WITH CHECK OPTION) values (...) 例如: 这样的语法看起来很特殊,其实是inser ...
近期参加OCP培训,讲师说的太快,之前一直是SQLSERVER,很多东西要恶补了。 UpSert功能: MERGE <hint> INTO <table_name> ...