Where clause is used in MariaDB database to filter the data as per the condition required. You can fetch, delete or update a particular set of data in MariaDB database by using the where clause.
SELECT column1, column2, …. cloumnN FROM [TABLE NAME] WHERE [CONDITION];
The above syntax is used for displaying a certain set of data following the condition.
Example 1: Consider the following database named GFG and having a table name as a PRODUCT.
Schema of the Table:
Table data :
Where Clause In Python :
Steps to use where clause in Python is:
- First form a connection between MariaDB and Python program. It is done by importing pymysql package and using pymysql.connect() method, for passing the username, password, host (optional default: localhost) and, database (optional) as parameters to it.
- Now, create a cursor object on the connection object created above by using the cursor() method. A database cursor is a control structure that enables traversal over the records in a database.
- Then, execute the where clause statement by passing it through the execute() method.
Example 2 :
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