Local variables refer to variables declared within a stored routine. Their scope is limited to the BEGIN and END block in which they are declared.
User variables are named with the @ symbol, and have global scope within the connection (you can set them inside a stored procedure, and still access them after the procedure has finished, for example).
Dig Deeper on Linux servers
Related Q&A from Scott Noyes
Get suggestions for choosing MySQL character sets and field collations from expert Scott Noyes. Continue Reading
A MySQL expert describes two ways that the multi-master support can be used. Continue Reading
An expert describes where to find information on detection deadlock algorithms in MySQL. Continue Reading
Have a question for an expert?
Please add a title for your question
Get answers from a TechTarget expert on whatever's puzzling you.