Introduction
MySQL – A Database Management System which is accompanied with PHP. MySQL is supported by the Oracle Corporation.
The Data in the MySQL Database values are stored in the Database Table.
Table – It is a collection of related data with a number of columns and rows by accessing two or more table values using primary key and foreign keys.
Create Database
Following is the way we are going to create a database in MySQL using the command prompt.
Syntax:
Create database database_name;
Command Prompt – Start -> cmd.exe and press enter to open command prompt.
Navigate MySQL using the following statements in command prompt.
C:\Users\Admin>cd/
C:\>cd ProgramData
C:\ProgramData>cd MySQL
C:\ProgramData\MySQL>cd "MySQL Server 5.1"
C:\ProgramData\MySQL\MySQL Server 5.1>cd data
C:\ProgramData\MySQL\MySQL Server 5.1\data>mysql -u root -p
Enter password: ************
Create Database: After navigation to MySQL we are going to create a Database in the name of Pet.
mysql> create database Pet;
Query OK, 1 row affected (0.05 sec)
Create Table
Syntax:
Create table table_name;
Query:
Here we are using a primary key as detailed. If we want to access the two or more tables this primary key is used and it act as a foreign key of another table. The primary key value is always not null and it should be an auto increment value;
Alter Table:
Syntax:
Alter table table_name column_name;
Modify Table:
Syntax:
Alter table table_name modify column_name data_type;
Add values to Table:
Syntax:
Insert into table_name(fieldname) values ( field_value);
If field value is string it means use ‘ ” ’ or digit means use ‘ ‘ ‘;
Example: “tommy” is a string value so we used “ ” and ‘3’ is a digit so we used ‘ ‘;