https://sqlblog.org/2023/11/14/t-sql-tuesday-168-window-functions https://www.cockroachlabs.com/blog/sql-upsert/ https://weblogs.sqlteam.com/jeffs/2007/08/23/composite_primary_keys/ https://www.theregister.com/2024/05/31/fifty_years_of_sql/ https://www.theregister.com/2024/05/10/sql_cocreator_nosql/ https://tdan.com/is-sql-a-real-standard-anymore/4923 https://www.theguardian.com/info/2018/nov/30/bye-bye-mongo-hello-postgres https://news.ycombinator.com/item?id=40809997 https://en.m.wikipedia.org/wiki/Cursor_(databases) https://en.m.wikipedia.org/wiki/Hierarchical_and_recursive_queries_in_SQL https://en.m.wikipedia.org/wiki/Null_(SQL) https://en.m.wikipedia.org/wiki/SQL https://en.m.wikipedia.org/wiki/SQL-92 https://en.m.wikipedia.org/wiki/Superkey https://en.m.wikipedia.org/wiki/Surrogate_key https://cs.stackexchange.com/questions/99350/did-date-and-darwens-third-manifesto-have-a-lasting-impact https://xkcd.com/327/ https://dl.acm.org/doi/abs/10.1145/202660.202667 https://deavid.wordpress.com/2018/08/31/things-i-miss-from-postgresql/ https://stackoverflow.com/questions/7078837/why-doesnt-sql-support-null-instead-of-is-null https://www.reddit.com/r/learnprogramming/comments/mh8p19/which_database_should_i_use_to_store_about_200gb/ https://stackoverflow.com/questions/1018822/inner-join-on-vs-where-clause https://stackoverflow.com/questions/15726535/which-datatype-should-be-used-for-currency https://dba.stackexchange.com/questions/161119/first-normal-form-definitive-definition https://vertabelo.com/blog/the-9-most-common-database-design-errors/ https://se-radio.net/2009/06/episode-137-sql-with-jim-melton/ https://www.youtube.com/watch?v=qI_g07C_Q5I https://en.m.wikipedia.org/wiki/Insert_(SQL) https://news.ycombinator.com/item?id=34181319 https://softwareengineering.stackexchange.com/questions/439893/should-the-intentional-absence-of-a-value-rather-be-represented-by-value-convent https://dba.stackexchange.com/questions/5222/why-shouldnt-we-allow-nulls http://www.dbazine.com/ofinterest/oi-articles/pascal27/ https://www.wired.com/2015/11/null/ https://stackoverflow.com/questions/41180547/is-sql-unknown-identical-to-null https://news.ycombinator.com/item?id=36825668 https://stackoverflow.com/questions/163434/are-nulls-in-a-relational-database-okay https://stackoverflow.com/questions/20481363/relational-algebra-expression-for-is-null https://l_avrot.gitlab.io/slides/null_20220525.html#/ Hugh Darwen, "How To Handle Missing Information Without Using NULL", 2003, https://www.dcs.warwick.ac.uk/%7Ehugh/TTM/Missing-info-without-nulls.pdf https://www.red-gate.com/simple-talk/databases/sql-server/learn/sql-and-the-snare-of-three-valued-logic/ https://en.m.wikipedia.org/wiki/Object%E2%80%93relational_impedance_mismatch https://www.researchgate.net/publication/297675657_Accounting_Database_Design_and_SQL_Implementation https://www.codeproject.com/Articles/5161230/Database-for-Financial-Accounting-Application-I-Ba https://stackoverflow.com/questions/596706/best-practices-for-storing-bank-information-in-a-database https://stackoverflow.com/questions/3957491/whats-the-best-db-to-store-banking-transactions https://dba.stackexchange.com/questions/294456/should-stored-financial-transactions-include-some-data-redundancy https://en.m.wikipedia.org/wiki/Integrated_Data_Store https://en.m.wikipedia.org/wiki/Data_model https://www.bkent.net/Doc/darxrp.htm https://stackoverflow.com/questions/40623169/normalization-in-database-management-system/40640962#40640962 https://wiki.c2.com/?BusinessSystemTwelve https://wiki.c2.com/?TutorialDee https://wiki.c2.com/?TheThirdManifesto https://datatechnologytoday.wordpress.com/2017/07/18/what-the-null-handling-missing-information-in-database-systems/