ISO/ IEC 9075 "Information technology - Database languages - SQL" is an international standard for Structured Query Language, and is considered as specifying the minimum for what a database engine should fulfill in terms of SQL syntax, which is called Core SQL. The standard also defines a number of optional features.
The first edition was based on ANSI SQL. [1]
New editions of the ISO standard are published regularly.
Chronological overview of the editions (which have the year of publication in their name):
ISO/ IEC 9075 "Information technology - Database languages - SQL" is an international standard for Structured Query Language, and is considered as specifying the minimum for what a database engine should fulfill in terms of SQL syntax, which is called Core SQL. The standard also defines a number of optional features.
The first edition was based on ANSI SQL. [1]
New editions of the ISO standard are published regularly.
Chronological overview of the editions (which have the year of publication in their name):