alter-table-mysql_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 15 行

Testing server 'MySQL 3.22.16 gamma' at 1999-02-07 11:41:08

Testing of ALTER TABLE
Testing with 16 columns and 1000 rows in 20 steps
Insert data into the table
Time for insert (1000) 1 secs ( 1.66 usr  0.00 sys =  1.66 cpu)

Time for alter_table_add (8):  1 secs ( 0.61 usr  0.00 sys =  0.61 cpu)

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

Time for drop_index (8):  1 secs ( 1.11 usr  0.00 sys =  1.11 cpu)

Total time:  4 secs ( 4.33 usr  0.00 sys =  4.33 cpu)