Select * from PersonSelect distinctName from PersonSelect * fromPersonwhereName='Huangcongcong'Select * fromPersonwhere Year>1991Select * fromPersonOrder byIDSelect * fromPerson limit5Select * fromPerson Name like"%Cong%"Select * fromPerson Name like"[!HC]%"Select * fromPersonwhereNameinch('Huangcongcong','huangbingbing')Select * fromPersonwhereNamebetween 'huangbingbing' and 'Huangcongcong'SelectName asXingming from PersonSelect * fromPersonwhereName is NULLSelect * intoPerson_back from PersonInsert intoPerson (name, Year)Values('huangbingbing',1992)UpdatePersonSet Year=1990 whereName='huangbingbing'Delete fromPersonwhereName='Huangcongcong'Delete * from PersonDelete from PersonCreate Databasemy_dbCreate TablePerson (IDint not NULL Primary Key Check(ID>0) auto_increment, namevarchar( -) not NULL, Addressvarchar( -)default 'Shanghai', Cityvarchar( -), Foreign Key(ID)References Order(ID))Alter Table PersonAdd Unique(ID)Alter Table PersonDrop IndexIDAlter Table PersonAdd Primary Key(ID)Alter Table PersonDrop Primary KeyAlter Table PersonAdd Foreign Key(ID)References Order(ID)Alter Table PersonDrop Foreign KeyAlter Table PersonAdd Check(ID>0)Alter Table PersonDrop constraint CheckAlter Table PersonAdd constraintChk_personCheck(ID>0)Alter Table PersonDrop constraintChk_personAlter Table PersonAlterCitySet default 'Shenzhen'Alter Table PersonAlterCityDrop defaultCreate IndexPersonindex onPerson nameAlter Table PersonDrop IndexPersonindexAlter Tablepersonauto_increment= -Create ViewPersonviewSelect * fromPerson
SQL Common Statements