Question

what is primary key?
​

Answer 1

Explanation:

Each table in a relational database must be assigned a primary key. The primary key is a column, or set of columns, whose values uniquely identify each row in the table.

Answer 2

Explanation:

__ __ __ __ __ __ __ __ __ __ __ __

ʜᴏᴘᴇ ᴍʏ ᴀɴsᴡᴇʀ ʜᴇʟᴘs ᴜ ᴏᴜᴛ!! ★᭄ꦿ᭄ꦿ