What is key in MySQL CREATE TABLE?

What is key in CREATE TABLE?

The word Key in the table creation is used to create an index, which enables faster performance. In the above code, Key ndx_PickupSPC means that it is creating an index by the name ndx_PickupSPC on the columns mentioned in parenthesis. Follow this answer to receive notifications.

What is key keyword in MySQL?

Key is synonymous to an index. If you want to create an index for a column, then use 'Key'. As stated in the official docs: KEY is normally a synonym for INDEX. The key attribute PRIMARY KEY can also be specified as just KEY when given in a column definition.

What is a key column in MySQL?

Introduction to MySQL primary key A primary key is a column or a set of columns that uniquely identifies each row in the table. The primary key follows these rules: A primary key must contain unique values. If the primary key consists of multiple columns, the combination of values in these columns must be unique.

How do I find my MySQL key?

“MySql get primary keys of table” Code Answer1SELECT COLUMN_NAME.2FROM INFORMATION_SCHEMA. COLUMNS.3WHERE TABLE_SCHEMA = 'Your Database'4AND TABLE_NAME = 'Your Table name'5AND COLUMN_KEY = 'PRI';6​7​8SELECT COLUMN_NAME.MySql get primary keys of table Code Example - Grepper