Woooo hooooo
Weโve finished the second chapter, Iโm so glad youโve reached it here and I hope you feel so much power from your knowledge
By now, weโve not only covered how the data works in marketing, but also weโve learned the two most fundamentals techniques in data analysis: grouping & counting and grouping & summing.
Letโs recap what weโve learned in the 2nd chapter:
OR
Combination of OR
and AND
operators allows us to build powerful filters for our queries:
SELECT COUNT(*) FROM users WHERE (country = 'ca' OR country = 'gb') AND...
Run query