what does it mean '::' in a query?

[Anon]

What doesn't it mean when a query got this :: ? for exmaple, "DB::connect" ??

THanks.

[[deleted]]

If it really IN a query:

SELECT bla::integer
FROM table

then it's type-casting.
Whatever is in 'bla' will be presented asif it is an integer.

But, DB::connect sounds more like you are calling the 'connect' method of the DB object.

[Anon]

so it only can be use in sql statement only is it?

[[deleted]]

It can be used everywhere, but it doesn't mean the same every where.