College Physical Education Course Management System Based on Internet of Things

Table 3

Student table.

Field name	Data type (length)	Can it be available	Remarks
STD_ID	Char [20]	No	Primary key
STD_Pwd	Char [20]	No
STD_Sex	Char [4]	Yes
STD_ClassID	Int	No	Foreign key
STD_Email	Char[50]	Yes
STD_Tel	Char [20]	Yes