...主键是否存在的方法,小技巧:Oracle删除表时出错:the table or view does not exist,Oracle动态 执行语句 ( Execute Immediate ),晚安,2010 - …
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This means that they do not execute against the database until they are evaluated, and thus run much faster than immediate queries.
这意味着只在对数据库进行求值之后才会对它们执行查询,这会比立即执行查询的速度更快。
Note that this might result in several immediate selects being used to execute a particular HQL query.
注意这可能意味着在一条HQL查询后紧跟着一系列的查询。
Immediate window to execute a function or subroutine while your application is not running.
即时运算视窗来执行函式或副程序。
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