A.T1正在写A、T2要读A B.T1正在写A、T2也要写A C.T1正在读A、T2要写A D.T1正在读A、T2要读A
A."begin tran delete from学生表where学号=‘s2008005’ rollback" B."begin tran delete from学生表where学号=‘s2008005’ commit" C."begin tran delete where学号=‘s2008005’ from 学生表 rollback" D."begin tran delete where学号=‘s2008005’ commit"
A.begin B.transaction C.commit D.continue