SQL Basics 2

Create DATABASE Fuxi--Creating a db named "Fuxi"
Go--Connection statement
Use Fuxi--using a database named "Fuxi"
Go
Create table Hua--Creating tables named "Hua"
(
--Adding columns to a table
Gonghao int,
Mingzi varchar (10),
Gongzi int,
Bumen varchar (10),
nianling int,
)
Go
--Inserting data
Insert into Hua values (1, ' Zhang San ', 2600, ' sales department ', 26)
Insert into Hua values (2, ' Stone ', 3600, ' aftermarket ', 21)
Insert into Hua values (3, ' penalty ', 6000, ' admin ', 33)
Insert into Hua values (4, ' Thunder ', 3800, ' repair Department ', 26)
Go
--Querying data
Select *from Hua
Select Gongzi,mingzi from Hua
Select Bumen,gongzi from Hua where mingzi= ' thunder '
Select *from hua where Gongzi between 3800 and 6000
--Modify data
Update Hua Set gonghao=1
Update Hua set mingzi= ' Thunder ' where gonghao=4
Update Hua set bumen= ' repair Department ' where Gongzi between 2600 and 3600
Alter table hua add en int
--Delete data
ALTER TABLE Hua drop column en
Delete from Hua where mingzi= ' thunder '
Delete from Hua
drop table Hua
Drop Database Fuxi

SQL Basics 2