Question: Suppose that the system crashes before the [write_item, T 2 , D, 25, 26] entry is written to the log in Figure 22.1(b). Will that

Suppose that the system crashes before the [write_item, T₂, D, 25, 26] entry is written to the log in Figure 22.1(b). Will that make any difference in the recovery process?

Figure 22.1(b)

(b) A BCD 30 15 40 20 [start_transaction, T3] [read_item, T3,C] [write_item,

T3.B,15,12] [start_transaction, T2) 12 [read_item, T2,B] [write_item, T2,B,12,18] 18 [start_transaction, T;] [read_item,

(b) A BCD 30 15 40 20 [start_transaction, T3] [read_item, T3,C] [write_item, T3.B,15,12] [start_transaction, T2) 12 [read_item, T2,B] [write_item, T2,B,12,18] 18 [start_transaction, T;] [read_item, TA] [read_item, T,D] [write_item,T,D,20,25] 25 [read_item, T2, D] [write_item, T2,D,25,26] 26 [read_item, T3 A] System crash

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