📚
Databases
Postgresql Indexing Strategies
120
Cards
~60m
Study time
Advanced
Difficulty
Sample questions
- ▸What is an index in PostgreSQL?
- ▸What is a B-tree index in PostgreSQL?
- ▸Which index access method is the default in PostgreSQL?
- ▸What index types does PostgreSQL ship with for general use?
- ▸What is the main trade-off of any index?
📚
Databases
SQL Window Functions Cheatsheet
223
Cards
~112m
Study time
Advanced
Difficulty
Sample questions
- ▸Running total of <i>amount</i> by <i>user_id</i> ordered by <i>ts</i>?
- ▸Difference between ROW_NUMBER, RANK, DENSE_RANK?
- ▸Top N rows per group?
- ▸Previous row's value in same partition?
- ▸Next row's value?
VS
🤔 Which should you study first?
Both topics are in the Databases category, so they complement each other well. We suggest starting with the smaller deck to build momentum:
Postgresql Indexing Strategies
120 cards · ~60 min · Advanced
⭐ Quicker to complete
SQL Window Functions Cheatsheet
223 cards · ~112 min · Advanced