Consider the balance in an account, replicated at N sites. Let the current balance be $100 – consistent across all sites. Consider TWO transactions T1 and T2 each depositing $10 in the account. Thus the balance would be $120 after both these transactions are EXECUTED. Let the transactions execute in sequence: T1 first and then T2. Suppose the copy of the balance at one of the sites, say s, is not consistent – due to lazy replication strategy – with the primary copy after transaction T1 is executed and let transaction T2 read this copy of the balance. One can see that the balance at the primary SITE would be $110 at the END.

Consider the balance in an account, replicated at N sites. Let the current balance be $100 – consistent across all sites. Consider two transactions T1 and T2 each depositing $10 in the account. Thus the balance would be $120 after both these transactions are executed. Let the transactions execute in sequence: T1 first and then T2. Suppose the copy of the balance at one of the sites, say s, is not consistent – due to lazy replication strategy – with the primary copy after transaction T1 is executed and let transaction T2 read this copy of the balance. One can see that the balance at the primary site would be $110 at the end.