Media Summary: MySQL CREATE TABLE products ( product_id INT, product_name varchar(25), price DECIMAL(4, 2) You can mark a column as mandatory by specifying it as You can have NULL values in any column in your table, except for primary key columns. Use the keywords
Adding Not Null Constraints In - Detailed Analysis & Overview
MySQL CREATE TABLE products ( product_id INT, product_name varchar(25), price DECIMAL(4, 2) You can mark a column as mandatory by specifying it as You can have NULL values in any column in your table, except for primary key columns. Use the keywords