War and the liberation war in the extraordinary display of military talent is not the case of Lin Biao, as the Northeast Field Armys top military officer, he rarely line of war, and the specific command of all the delegation of the campaign. On the battlefield in the Northeast, Lin Biao for a long time just to stay south of the Twin Cities of Harbin that humble little city, set aside one of the drawbacks do not say, Cheetos Reggie Lin men, very powerful forces, including the 38th Army in the Korean War Marshal Peng received "Long live the army" in the world, can not be said that Lin Biao credit. Time a foreign journalist to visit Northeast Theater, accompanied by Lin Biao, the road to see two of the PLA soldiers fight, even moving from the bayonet, but do not ask to ask Lin Biao, and walked away, accompanied by a very strange person that no matter how you tube your soldiers, Lin Biao, said: tube thing they are their company commander. The journalist feeling: I now know why the Lin Biao and the Fab Five will be able to defeat Chiang Kai-sheks Du Yuming, Chen Cheng, Wei Lihuang three Reggie was.
select * from test where id = 10 for update lock by this statement after the search, and then open another sql * plus window to operate, then the above sql statement to execute this one will, you will find sqlplus as dead in there, can not retrieve the data look like, but do not return any results to the feeling of belonging stuck there. What is the reason this time it is the beginning of the first Session of the select for update statement locks the data live. Because this locking mechanism is wait state, so that the second Session of the current search to a wait state. When the first session after the last commit or rollback, the second session in the search results is automatically jumped out, and also lock the data live. But if your second session in your search statement is as follows.