alter-table-db2_odbc-nt_4.0-cmp-db2,informix,ms-sql,mysql,oracle,solid,sybase

来自「开启mysql的远程连接的方法 mysql-noinstall-5.1.6-al」· 0-CMP-DB2,INFORMIX,MS-SQL,MYSQL,ORACLE,SOLID,SYBASE 代码 · 共 11 行

Testing server 'IBM DB2 5' at 1998-11-21 23:08:51

Testing of ALTER TABLE
Testing with 16 columns and 1000 rows in 20 steps
Insert data into the table
Time for insert (1000)10 secs (10.26 usr  0.00 sys = 10.26 cpu)

Time for alter_table_add (8):  0 secs ( 0.20 usr  0.00 sys =  0.20 cpu)

Time for create_index (8):  1 secs ( 0.91 usr  0.00 sys =  0.91 cpu)