- PostgreSQL 9.4 Beta 1 (Japanese) 2014/07/02
- PostgreSQL 9.5 Alpha 2 (English) (Japanese) 2015/08/07
- PostgreSQL 9.6 Beta 1 (English) (Japanese) 2016/05/30
- PostgreSQL 10 Beta 1 (English) (Japanese) 2017/05/22
- PostgreSQL 11 Beta 1 (English) (Japanese) 2018/05/25
- PostgreSQL 11 GA (English) (Japanese) 2018/10/22
- PostgreSQL 12 Beta 1 (English) (Japanese) 2019/05/24
- PostgreSQL 12 GA (English) (Japanese) 2019/10/11
- PostgreSQL 13 Beta 1 (English) (Japanese) 2020/05/27
- PostgreSQL 13 GA (English) (Japanese) 2020/09/27
- PostgreSQL 14 Beta 1 (English) (Japanese) 2021/05/21
- PostgreSQL 14 GA (English) (Japanese) 2021/10/01
- PostgreSQL 15 Beta 1 (English) (Japanese) 2022/05/24
- PostgreSQL 15 GA (English) (Japanese) 2022/10/14
- PostgreSQL 16 Beta 1 (English) (Japanese) 2023/05/28
- PostgreSQL 16 GA (English) (Japanese) 2023/09/19
- PostgreSQL 17 Beta 1 (English) (Japanese) 2024/05/25
- PostgreSQL Internals (1) for PostgreSQL 9.4 (Japanese) 2015/03/16
- PostgreSQL Internals (2) for PostgreSQL 9.4 (Japanese) 2015/03/16
- TDE for PostgreSQL (Japanese) 2015/06/15
- PostgreSQL Internals (1) for PostgreSQL 9.6 (English) (Japanese) 2017/02/11
- Citus 7.5 (Japanese) 2018/07/02
- Citus 10 (Japanese) 2021/09/07
- EDB Postgres Advanced Server compatibility @ db tech showcase 2013 (Japanese) 2013/11/14
- PostgreSQL Administration & Configuration @ PostgreSQL Conference 2014 (Japanese) 2014/12/05
- PostgreSQL Administration & Configuration DEMO @ PostgreSQL Conference 2014 (Japanese) 2014/12/05
- PostgreSQL Administration & Configuration @ OSC 2014 Enterprise (Japanese) 2014/12/12
- PostgreSQL 9.5 New Features @ JPUG Izumo (Japanese) 2015/12/05
- PostgreSQL 9.5 New Features @ MyNA & JPUG (Japanese) 2016/02/19
- PostgreSQL 9.5 New Features @ OSC Tokyo 2016 (Japanese) 2016/02/26
- PostgreSQL 9.6 New Features @ JPUG 2016 Seminar (Japanese) 2016/06/18
- PostgreSQL 9.6 New Features @ Open Seminar Kagawa 2016 (Japanese) 2016/07/02
- PostgreSQL 10 New Features @ OSC Hiroshima 2017 (Japanese) 2017/11/25
- Logical Replication Internals @ PGConf.ASIA 2017 (English) (Japanese) 2017/12/04
- Citus 7 @ PostgreSQL Conference 2018 (English) (Japanese) 2018/11/21
- EDB Migration Portal @ EDB Postgres Vision 2019 (Japanese) 2019/08/01
- PostgreSQL History @ Open Seminar Kagawa 2019 (Japanese) 2020/01/11
- Undetectable Destruction @ PostgreSQL Unconference #15 (Japanese) 2020/07/30
- PostgreSQL History @ PostgreSQL Conference Japan 2020 (Japanese) 2020/11/13
- Process failure @ PostgreSQL Unconference #20 (Japanese) 2021/02/02
- Error Messages @ PostgreSQL Unconference #26 (Japanese) 2021/08/24
- Citus 10 @ PostgreSQL Conference 2021 (Japanese) 2021/11/12
- Unicode IVS @ PostgreSQL Unconference #29 (Japanese) 2021/12/21
- Babelfish compatibility @ PostgreSQL Unconference #31 (Japanese) 2022/02/22
- ICU collation @ PostgreSQL Unconference #35 (Japanese) 2022/09/09
- PostgreSQL History @ Kansai DB Conference #14 (Japanese) 2024/06/22
- Oracle Database 12c New Features @ JPOUG SET EVENTS 20140907 (Japanese) 2014/09/07
- Oracle Database New Features @ Oracle Database Connect 2017 (Japanese) 2017/03/07
- Oracle Database New Features @ db tech showcase 2019 (Japanese) 2019/09/26
- Add PLEASE clause to Oracle Database @ MyNA (Japanese) 2021/04/12
- Oracle Database 23c New Features @ JPOUG#7 (Japanese) 2023/09/13
- Implementation dependency in SQL @ Database Lounge Tokyo #3 (English) (Japanese) 2016/11/29
- Implementation dependency in SQL @ db tech showcase 2024 B13 (Japanese) 2024/07/12
- Introducing Oracle ACE (Japanese)
- RDB past, present and future (Japanese)
- Books (Japanese)
- Redgate 100 (Open Source Database) (English)