CTEs are implemented by most (all?) major RDBMS platforms and were introduced in the SQL:1999 standard revision. - SQL:1999 https://en.wikipedia.org/wiki/SQL:1

CTEs are implemented by most (all?) major RDBMS platforms and were introduced in the SQL:1999 standard revision. - SQL:1999 https://en.wikipedia.org/wiki/SQL:1999#Common_table_expressions_and_recursive_queries https://en.wikipedia.org/wiki/SQL:1999#Common_table_expressi... - SQL standardization https://en.wikipedia.org/wiki/SQL#Interoperability_and_standardization https://en.wikipedia.org/wiki/SQL#Interoperability_and_stand...