SQL pattern

Data Types & CAST

3 problemsin this pattern, climbing easy → medium → hard. Pick wherever you're calibrated. Read the P13 tutorial →

Easy

0 / 1 solved

Orders over 100 when amounts are text
SQL · ~5 min
NEW

Medium

0 / 1 solved

Revenue from text amounts, with a data-quality count
SQL · ~7 min
NEW

Hard

0 / 1 solved

Daily revenue when dates come in two formats
SQL · ~11 min
NEW