2013-08-03 113 views

回答

10

使用SET STATS

SQL> SET STATS; 
SQL> SELECT * FROM RDB$DATABASE; 
... query output removed .... 

Current memory = 34490656 
Delta memory = 105360 
Max memory = 34612544 
Elapsed time= 0.59 sec 
Buffers = 2048 
Reads = 17 
Writes 0 
Fetches = 270 
SQL>