What Is Table Structure In Database

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DEDECMS database Structure table name: Dede_member_model field description is as follows: Table name: Dede_member_model (ENGINE=MYISAM/CHARSET=GBK) Description: Member Model table field name Description Description specific Parameters info Content text NOT NULL, whether state enables INT (2) NOT null DEFAULT ' 0 ', description model describes v.

ALTER alter alter the name of the table structure of the name of the table ALTER TABLE ALTER TABLE ALTER TABLE statement is used to add, modify or delete columns in the existing table. sql alter table syntax To add a column to a table, use the following syntax: alter table table_name add column_name datatype To delete a column in a table, use the following syntax: alter table table _...

With the rise of internet web2.0 websites, the relational database has become a very hot new field, the development of the non relational database products is very rapid. 　　But the traditional relational database in dealing with web2.0 website, especially the super large-scale and high concurrent SNS type web2.0 pure dynamic website already appeared to be powerless, has exposed many insurmountable problems, for example: 1, high configured--to the database higher concurrent reads and writes the demand WEB2.0 website to be based on user personalized information to generate real-time dynamic ...

DEDECMS database Structure table name: Dede_stepselect field description is as follows: Table name: Dede_stepselect (ENGINE=MYISAM/CHARSET=GBK) Description: Category Group table field name description describes specific parameters Egroup 5603.html "> Cache group name char (issystem) DEFAULT NULL, is the system built-in tinyint (1) unsign ...

DEDECMS database Structure table name: Dede_plus field description is as follows: Table name: Dede_plus (ENGINE=MYISAM/CHARSET=GBK) Description: Plugin Admin field name Description Description specific parameters Mainurl target frame varchar (50) Not NULL, plushttp://www.aliyun.com/zixun/aggregation/11696.html "" ...

The necessity of database encryption large database management system platform is typically Windows NT and Unix, these operating system security level is usually C1, C2 level. They have user registration, user identification, Arbitrary access control (DAC), audit and other security functions. Although the DBMS on the basis of the OS added a number of security measures, such as access control based on permissions, but the OS and DBMS on the database file itself is still lack of effective protection measures, experienced online hackers will "bypass", directly using the OS tools to steal or tamper with the database files ...

I first http://www.aliyun.com/zixun/aggregation/7415.html "> Self-introduction, I engaged in IT industry 10, years ago is an architect, now in an internet company as product manager, below is personal experience , as well as with some cloud computing architects to exchange the experience of the summary, the following on the Beijing-East Cloud Database For example, there are improper please forgive me. What is a shared database talking about "shared database", what puzzles us most is "...