在确认执行的时候，失败了。

我直接把这些语句在phpmyadmin数据库

里执行也不可以

SQLSTATE[42S02]: Base table or view not found: 1146 Table 'oa.oa_todo' doesn't exist

The sql is: ALTER TABLE `oa_todo` add `assignedTo` varchar(30) NOT NULL DEFAULT '' AFTER `private`

\nSQLSTATE[42S02]: Base table or view not found: 1146 Table 'oa.oa_todo' doesn't exist
The sql is: ALTER TABLE `oa_todo` add `assignedBy` varchar(30) NOT NULL DEFAULT '' AFTER `assignedTo`

\nSQLSTATE[42S02]: Base table or view not found: 1146 Table 'oa.oa_todo' doesn't exist
The sql is: ALTER TABLE `oa_todo` add `assignedDate` datetime NOT NULL AFTER `assignedBy`

\nSQLSTATE[42S02]: Base table or view not found: 1146 Table 'oa.oa_todo' doesn't exist
The sql is: ALTER TABLE `oa_todo` add `finishedBy` varchar(30) NOT NULL DEFAULT '' AFTER `assignedDate`

\nSQLSTATE[42S02]: Base table or view not found: 1146 Table 'oa.oa_todo' doesn't exist
The sql is: ALTER TABLE `oa_todo` add `finishedDate` datetime NOT NULL AFTER `finishedBy`

\nSQLSTATE[42S02]: Base table or view not found: 1146 Table 'oa.oa_todo' doesn't exist
The sql is: ALTER TABLE `oa_todo` add `closedBy` varchar(30) NOT NULL DEFAULT '' AFTER `finishedDate`

\nSQLSTATE[42S02]: Base table or view not found: 1146 Table 'oa.oa_todo' doesn't exist
The sql is: ALTER TABLE `oa_todo` add `closedDate` datetime NOT NULL AFTER `closedBy`

\nSQLSTATE[42S02]: Base table or view not found: 1146 Table 'oa.oa_todo' doesn't exist
The sql is: ALTER TABLE `oa_todo` CHANGE `status` `status` varchar(30) NOT NULL DEFAULT ''

\nSQLSTATE[42S21]: Column already exists: 1060 Duplicate column name 'zentao'
The sql is: ALTER TABLE `sys_entry` add `zentao` enum('0', '1') NOT NULL DEFAULT '0'