Oracle
1Z0-909 · Question #29
1Z0-909 Question #29: Real Exam Question with Answer & Explanation
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Application Development
Question
Examine these statements issued from Session 1 which execute successfully: Now, examine these statements issued from Session 2 which execute successfully: Session 2> BEGIN; UPDATE band SET song=CONCAT ("Here Comes the ", song) WHERE song LIKE ' %Sun ; Which two are true?
Options
- ASession 1 takes a shared lock on all the rows in the band table.
- BSession 1 must commit before the update in Session 2 can complete.
- CSession 1 does not block Session 2.
- DStatements in Session 2 are committed.
- ESession 2 takes an exclusive lock on all the rows in the band table.
- FSession 2 does not start a transaction.
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Topics
#Transaction control#Session locking#Blocking behavior#Multi-session coordination