alter edit

MySQL alter command, mysqlalter Use the alter command in mysql to edit the table structure. The details are as follows: Modify Field Type mysql> alter table employee change depno depno int(5) not null; Add Index Mysql> alter table name add index

(There is an "Enterprise Manager Console" in the Windows Oracle Start Menu, which allows you to directly edit tablespaces and files) Alter Database Open an existing database, and/or modify associated files. Syntax: ALTER DATABASE database_name

Test 2:(1) Consistent, fully preparedsql> shutdown immediate;$ CP-RF $ORACLE _base/oradata/boss/*.dbf/oradata/bossbak/20140610allbackup$ CP-RF $ORACLE _base/oradata/boss/*.log/oradata/bossbak/20140610allbackup$ CP-RF $ORACLE _base/oradata/boss/*.ctl/

Test 2:(1) Consistent, fully preparedsql> shutdown immediate;$ CP-RF $ORACLE _base/oradata/boss/*.dbf/oradata/bossbak/20140610allbackup$ CP-RF $ORACLE _base/oradata/boss/*.log/oradata/bossbak/20140610allbackup$ CP-RF $ORACLE _base/oradata/boss/*.ctl/

MySQL Append comment or a lot of changes comment 2016-01-25 20:28:05Category: MySQLMySQL 5.6.14The previous project was rather hasty, with no comments on the built-in statements.Now you want to complete the annotation information.But MySQL late

Previously, the gridview control used the default functions such as editing and updating. Today, I found some information online and tried to use a custom template to edit, update, and cancel deletion. The following is a list of my recently made

Previously, the gridview control used the default functions such as editing and updating. Today, I found some information online and tried to use a custom template to edit, update, and cancel deletion. The following is a list of messages that I

Syntax for adding a field: ALTER TABLE tablename Add (column datatype [default value][null/not null],....);Modify the syntax of the field: ALTER TABLE tablename modify (column datatype [default value][null/not null],....);Syntax for deleting a field:

One, the use of sys login,Second, Chan session_idFind stored procedure operationdata_imp by which sessionLocked and unable to compileSELECT * from dba_ddl_locks where name =upper (' Operationdata_imp ');third, Sid serial# detectedThus getting

Chattr-i/etc/hosts #hosts文件去掉禁止随意更改的功能, try a few more times. Then VI go in to modify the file.Similarly, chattr +i/etc/hosts #为hosts文件添加防止修改的权限-------------------------------------------------------------Chattr (change attribute)Feature Description: