Chapter 7, Problem 10AYK

Which results would show if the artist table LEFT JOINed the album table?     Only rows from the artist table that do not have related albums in the album table Only artists from the artist table that have albums All artists, even those with no albums in the album table All rows from the album table, even those that have NULL artist_id's

In MySQL please: The Question: Create a trigger named trg_char_hours that automatically updates the AIRCRAFT table when a new CHARTER row is added. Use the CHARTER table’s CHAR_HOURS_FLOWN to update the AIRCRAFT table’s AC_TTAF, AC_TTEL, and AC_TTER values. (Hint: use temp values, as the INSERT event does not accept the OLD keyword.)

Update the VID_STATUS attribute of the VIDEO table using a subquery to set the VID_STATUS to OUT for all videos that have a null value in the DETAIL_ RETURNDATE attribute of the DETAILRENTAL table.

Create a new table containing the category code and description for the categories of books sold by JustLee Books. The table should be called CATEGORY, and the columns should be CatCode and CatDesc. The CatCode column should store a maximum of 2 characters, and the CatDesc column should store a maximum of 10 characters.