What Is Foreign Key
What Is Foreign Key? - MySQL FAQs - Database Basics and Terminologies
✍: FYIcenter.com
A foreign key is a single column or multiple columns defined to have values that can be mapped to a primary key in another table.
2007-05-10, 6222👍, 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, 6131👍, 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, 5757👍, 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, 5688👍, 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, 5647👍, 0💬