What are the differences between the BLOB and TEXT datatypes in MySQL?

Question

What is blob and what is text? What are the differences?

When do I need to use blob and when do I need text as da

Answer 1

A BLOB is a binary string to hold a variable amount of data. For the most part BLOB's are used to hold the actual image binary instead of the path and file info. Text is for large amounts of string characters. Normally a blog or news article would constitute to a TEXT field

L in this case is used stating the storage requirement. (Length|Size + 3) as long as it is less than 224.

Reference: http://dev.mysql.com/doc/refman/5.0/en/blob.html