界面: 代码: function pushbutton1_Callback(hObject, eventdata, handles) % hObject handle to pushbutton1 (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles s
在同一个事务中执行两个SQL语句: update A set A.name = 'aa' where A.id = 1;update B set B.name = 'aa' where B.id = 1; 假设事务A已经执行完第一个SQL语句,而在事务A执行第二个SQL语句之前,另一个事务B将表B中id为1的记录的id改为了2。此时,当事务A继续执行第二个SQL语句时,其效果将取决于以下几个因
文档地址:http://docs.oracle.com/cd/B19306_01/server.102/b14231/dbrm.htm#ADMIN027 How Resource Plan Directives Interact If there are multiple resource plan directives that refer to thesame consumer gr