What Is Primary Key
What Is Primary Key? - MySQL FAQs - Database Basics and Terminologies
✍: FYIcenter.com
A primary key is a single column or multiple columns defined to have unique values that can be used as row identifications.
2007-05-10, 6288👍, 0💬
Related Topics:
What Is Table
What Is Table? - MySQL FAQs - Database Basics and Terminologies A table is a data storage structure with rows and columns. 2007-05-10, 6302👍, 0💬
What Is Index
What Is Index? - MySQL FAQs - Database Basics and Terminologies An index is a single column or multiple columns defined to have values pre-sorted to speed up data retrieval speed. 2007-05-10, 5892👍, 0💬
What Is Union
What Is Union? - MySQL FAQs - Database Basics and Terminologies Join is data retrieval operation that combines multiple query outputs of the same structure into a single output. 2007-05-10, 5789👍, 0💬
What Is Column
What Is Column? - MySQL FAQs - Database Basics and Terminologies A column defines one piece of data stored in all rows of the table. 2007-05-10, 5777👍, 0💬
What Is Row
What Is Row? - MySQL FAQs - Database Basics and Terminologies A row is a unit of data with related data items stored as one item in one column in a table. 2007-05-10, 5662👍, 0💬