What does the * mean
all
what does “select” control
the columns
what does “where” control
restricts the rows
what does “from” control
it specifies the data set
what does the “order by” control
display order
What does “having” control
it restricts rows based on aggregate column
What does AS do
makes column aliases use quotes around alias to make it easy, you can remove as and it still works to alias
what does inner join do
it just gives common data
what does left outer join do
gives all data on the left and anything on the right that matches
Good technique:break it down from the innermost quert
alsoa good idea to know query 1400 and practice makes perfect
Group by the____
Non aggregates