An administrator installs MySQL to run under a mysqlOS account. The administrator decides to disable logins to the mysqlaccount by using /nologinor /bin/falseas the user's shell setting.
Which statement is true?
Group Replication uses global transaction identifiers to track executed transactions and are fundamental in avoiding transaction conflict. Which additional three steps help in avoiding conflicts in group replication?
Consider the key buffer in a MySQL server. Which two statements are true about this feature?
Examine the mydata table and SELECT statements:
You issue:
mysql> begin;
mysql> update mydata set a=0 where b=3;
How many rows are now protected by locks with the default InnoDB configuration?
