Introduction to SQL [Week 5]
What is SQL?
SQL (Structured Query Language) is a language used to interact with relational databases. It allows for querying, updating, inserting, and managing data.
SQL Data Types
- Numeric:
INT,FLOAT,DECIMAL - String:
VARCHAR,TEXT,CHAR - Date & Time:
DATE,DATETIME,TIMESTAMP - Boolean:
BOOLEAN
SQL Operators
- Arithmetic Operators:
+,-,*,/ - Comparison Operators:
=,!=,>,< - Logical Operators:
AND,OR,NOT