# CMU Intro to Database Systems (15-445/645 - Fall 2025)

Posts from CMU Intro to Database Systems (15-445/645 - Fall 2025), via the RSS Amplifier directory.

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## [#15 - Database Query Optimizers Part 1 (CMU Intro to Database Systems)](https://www.youtube.com/watch?v=b53huOGcsZ8)

_2025-10-28 · CMU Database Group_

## [#14 - Parallel Query Engine Architectures ✸ SpiralDB Database Talk (CMU Intro to Database Systems)](https://www.youtube.com/watch?v=Kzf1hGjtZOU)

_2025-10-23 · CMU Database Group_

## [#13 - Query Execution Part 1 (CMU Intro to Database Systems)](https://www.youtube.com/watch?v=E-UUd6cB57w)

_2025-10-21 · CMU Database Group_

## [#12 - Hash Joins, Sort-Merge Joins, Nested Loop Join Algorithms (CMU Intro to Database Systems)](https://www.youtube.com/watch?v=YIdIaPopfpk)

_2025-10-07 · CMU Database Group_

## [#11 - Sorting & Aggregation Algorithms ✸ MotherDuck Database Talk (CMU Intro to Database Systems)](https://www.youtube.com/watch?v=LzyKTpeIgts)

_2025-10-02 · CMU Database Group_

## [#10 - Latching in Data Structures (CMU Intro to Database Systems)](https://www.youtube.com/watch?v=YgOvfXl6pss)

_2025-09-30 · CMU Database Group_

## [#09 - Vector Indexes + Inverted Indexes + Skip Lists + Bloom Filters (CMU Intro to Database Systems)](https://www.youtube.com/watch?v=PjST2n7abAY)

_2025-09-25 · CMU Database Group_

## [#08 - B+Trees: The Best Data Structure in the World (CMU Intro to Database Systems)](https://www.youtube.com/watch?v=u7ii_Lvm9rM)

_2025-09-23 · CMU Database Group_

## [#07 - Database Hash Tables ✸ YugabyteDB Database Talk (CMU Intro to Database Systems)](https://www.youtube.com/watch?v=nuNW8IfgPNU)

_2025-09-19 · CMU Database Group_

## [#06 - Column-Store Databases (CMU Intro to Database Systems)](https://www.youtube.com/watch?v=yWnToWrskXE)

_2025-09-16 · CMU Database Group_

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_2025-09-16 · **Sponsored**_

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## [#05 - Log-Structured Database Storage ✸ SingleStore Database Talk (CMU Intro to Database Systems)](https://www.youtube.com/watch?v=2_sTdS4h-bY)

_2025-09-11 · CMU Database Group_

## [#04 - Memory Management & Buffer Pools (CMU Intro to Database Systems)](https://www.youtube.com/watch?v=8-2yv4z0VZc)

_2025-09-09 · CMU Database Group_

## [#03 - Database Storage: Files, Pages, Tuples (CMU Intro to Database Systems)](https://www.youtube.com/watch?v=PRLXdIMJhOg)

_2025-09-04 · CMU Database Group_

## [#02 - Modern SQL ✸ dbt Database Talk (CMU Intro to Database Systems)](https://www.youtube.com/watch?v=O5gU9NQjCAs)

_2025-08-28 · CMU Database Group_

## [#01 - Relational Model & Algebra (CMU Intro to Database Systems)](https://www.youtube.com/watch?v=7NPIENPr-zk)

_2025-08-26 · CMU Database Group_