The difference between 'AND' and '&&' in SQL

Question

Is there a difference in the way SQL interprets the logical operators AND and &&?

Answer 1

If you're working with PostgreSQL, '&&' means overlap (have elements in common):

example: ARRAY[1,4,3] && ARRAY[2,1]

https://www.postgresql.org/docs/9.1/static/functions-array.html