Problems

Note that you can solve most task in any order!
Already solved ones are at the bottom of the table.

Tagged with: sql - total 5 (clear filter)

Id	Title	Solved	Blessing
244	Introducing SQL	122	11.74
245	Aggregations in SQL	107	11.96
246	Joins in SQL	93	12.20
265	Update in SQL	72	12.64
257	Missing Records in SQL	45	13.45