A reader, May 21, 2017 - 5:20 am UTC
"Oracle Database supports two collection data types: varrays and nested tables"
Then Associative Array?
May 23, 2017 - 1:25 am UTC
Semantics here. In terms of "SQL types" it is nested and varray.
In terms of additional types supported by PLSQL, than associative arrays as well.
12.2 blurs things more by increased support for plsql types via SQL.