(A) Operating SQL database format:
1. Create a database
create database database_name;
2, view the database
show databases;
3, using the database
use database_name;
4, there is a table under the View database
show tables;
5, delete the database
drop database database_name;
(Ii) operations SQL table format
1, create a table
create table table_name (attribute name Data type [integrity constraints], property name data type 2 [integrity constraints], 3 Attribute Name Data Type [integrity constraints]);
(*)type of data:
(*) Integrity constraints:
2, view the table
（1）desc table_name;
（2）show create table table_name;
3, modify table (ALTER)
(1) modify the table name
alter table old_table_name rename [to] new_table_name;
(2) modifying a table fields (attributes)
alter table table_name change the old name of the new attribute name attribute new attribute type;
(3) modify the data type of the attribute table
alter table table_name modify Attribute Name Attribute Type;
(4) increase the field table
alter table table_name add Attribute Name Attribute Type [integrity constraint];
(5) removing fields
alter table table_name drop attribute name;
(6) to modify the order of the fields
alter table table_name modify a property attribute type first | after 2 attribute;
(7) modify the storage engine
alter table table_name engine = InnoDB | myISAM;