Basic operations of MySQL database (based on tables)

1. Create table
2. See the table （ View fields ）
3. Insert elements into the table
4. Modify the name of the table
5. Delete table

First, let's take a look at the official definition of table ： Table in ACCESS in , surface （TABLE） Is the object used to store data in the database , Is a collection of structured data , It is the foundation of the whole database system .

In everyday life , Watches are no stranger to us . Tables are organized in rows and columns . For example, the usual worksheet

Each line is a unique record , Each column represents a field in the record .

One Create table .

create table  Table name (
	 Field name 1  type ,
	 Field name 2  type ,
	 Field name 3  type ,
	 Field name 4  type 
);

for example ： Create a name test Table of , Then look at the table

 

Two         See the table （ View fields ）

Command statement         desc Table name ;        

desc test;

3、 ... and        Insert elements into the table

Code ：

standard insert into Table name

         ( Field 1, Field 2)

        value

        ( Inserted value 1, Inserted value 2);

insert into test
	(age,name)
	value
	(18," Zhang San ");

Check the contents of the table

select * from Table name ;

select * from test;

Four         Modify table （ The modification indicates ）

1. rename table The old name of the table to The new name of the table ;

rename table test to test_01;

2.

alter table The old name of the table The new name of the table

 

 

5、 ... and         Delete table ( Need to be deleted carefully , Delete reference safely ：MySQL database ------ Common database commands （ database-based ）_Bloom_001 The blog of -CSDN Blog )

drop table Table name ;

 drop table test_01;

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