I often see people who write SQL like this:
SELECT * from TableA LEFT OUTER JOIN TableB ON (ID1=I2)
I myself write simply:
SELE
I use the OUTER keyword myself. I agree it is merely a matter of taste but omitting it strikes me as being a little sloppy but not as bad a omitting the INNER keyword (sloppy) or writing SQL keywords in lower case (very sloppy).
OUTER
INNER