直接insert与存储过程insert性能区别
16:40:43 SQL> insert into t_direct_table select level from dual connect by level<=1e6;
1000000 rows inserted
Executed in 1.108 seconds
16:41:11 SQL> insert into t_direct_table select * from t_direct_table;
1000000 rows inserted
Executed in 0.562 seconds
16:41:26 SQL> create or replace procedure proc_t_direct_table
2 as
3 begin
4 insert into t_direct_table select level from dual connect by level<=1e6;
5 insert into t_direct_table select * from t_direct_table;
6 commit;
7 end;
8 /
Procedure created
Executed in 1.372 seconds
16:44:17 SQL> truncate table t_direct_table;
Table truncated
Executed in 7.722 seconds
16:45:37 SQL> exec proc_t_direct_table;
PL/SQL procedure successfully completed
Executed in 1.716 seconds
1000000 rows inserted
Executed in 1.108 seconds
16:41:11 SQL> insert into t_direct_table select * from t_direct_table;
1000000 rows inserted
Executed in 0.562 seconds
16:41:26 SQL> create or replace procedure proc_t_direct_table
2 as
3 begin
4 insert into t_direct_table select level from dual connect by level<=1e6;
5 insert into t_direct_table select * from t_direct_table;
6 commit;
7 end;
8 /
Procedure created
Executed in 1.372 seconds
16:44:17 SQL> truncate table t_direct_table;
Table truncated
Executed in 7.722 seconds
16:45:37 SQL> exec proc_t_direct_table;
PL/SQL procedure successfully completed
Executed in 1.716 seconds
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