alter-table-informix_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 'Informix 7.30C1  ' at 1998-09-01  2:00:29

Testing of ALTER TABLE
Testing with 16 columns and 1000 rows in 20 steps
Insert data into the table
Time for insert (1000) 6 secs ( 5.53 usr  0.00 sys =  5.53 cpu)

Time for alter_table_add (8):  0 secs ( 0.39 usr  0.00 sys =  0.39 cpu)

Time for create_index (8):  1 secs ( 0.44 usr  0.00 sys =  0.44 cpu)

Time for drop_index (8):  0 secs ( 0.10 usr  0.00 sys =  0.10 cpu)

Total time:  7 secs ( 6.60 usr  0.00 sys =  6.60 cpu)