0x00 What we have learned yesterday?
We\'ve learned what is SQL and it\'s main features.
We\'ve also learned how to create a new database and select it.
Then today we will learn some basic concept like tables,rows,columns,etc.
0x01 create a table
Why should we create a table? Because we must make a structure for the database. When we create a database, it\'s empty, we must define some structure for it to make it sensitive.
So now I want to store my basic information into the database, I\'m gonna to create a new table:CREATE TABLE christopherwu(name VARCHAR(20),sex CHAR(1),id VARCHAR(10),birth DATE);
like this.
I must make a explanation about varchar: the values\' length in varchar is changeable. It\'s more flexible than char.
This is a example:
So we successfully created a table!
Fuck I need to write mt EDA experiment export,
so this is what we learned today XD.