alter-table-oracle_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 'Oracle 8.0.4.0.0' at 1999-04-03 22:38:03

Testing of ALTER TABLE
Testing with 16 columns and 1000 rows in 20 steps
Insert data into the table
Time for insert (1000) 6 wallclock secs ( 1.14 usr  0.08 sys +  0.00 cusr  0.00 csys =  0.00 CPU)

Time for alter_table_add (8):  1 wallclock secs ( 0.00 usr  0.00 sys +  0.00 cusr  0.00 csys =  0.00 CPU)

Time for create_index (8):  0 wallclock secs ( 0.00 usr  0.00 sys +  0.00 cusr  0.00 csys =  0.00 CPU)

Time for drop_index (8):  1 wallclock secs ( 0.01 usr  0.02 sys +  0.00 cusr  0.00 csys =  0.00 CPU)

Total time:  8 wallclock secs ( 1.15 usr  0.10 sys +  0.00 cusr  0.00 csys =  0.00 CPU)