Schedules
A schedule gives the sequence of operations from ≥ 1 tx
Serial schedule for a set of tx's T1 .. Tn
 
-  all operations of Ti complete before Ti+1  begins
  
E.g.   
RT1(A)  
WT1(A)  
RT2(B)  
RT2(A)  
WT3(C)  
WT3(B)  
Concurrent schedule for a set of tx's T1 .. Tn
 
-  operations from individual Ti's are interleaved
  
E.g.   
RT1(A)  
RT2(B)  
WT1(A)  
WT3(C)  
WT3(B)  
RT2(A)  
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