2 PL with lock upgrade and Conflict serializability

Question

Hi Guys,

Please tell following statement is T/F -->

If there is a schedule which is conflict serializable. But there may not exist any 2 PL with lock upgrade scheme to execute it.

PS:

ping @Krish__, @rahul sharma 5,  @Red_devil, @Shivam Chauhan, @Tuhin Dutta, @Anu007,  @Ashwin Kulkarni @reena_kandari  and @srestha ji.

Comments

Hi @joshi_nitish ji, I did not get you.

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@Chhotu,

in my example, there is existing one 2PL serilizable schedule with lock upgradation technique.

am i not understanding your qsn properly ??

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am i not understanding your qsn properly ?

YES