Oracle 23ai (23.7) — 物化表达式列
Introduced in Oracle Database version 11.1, Virtual Columns allow users to compute column values without physically storing them in the database. These columns are defined using expressions that...
Oracle 11.1引入虚拟列，允许动态计算列值而不占用存储空间。Oracle 23ai版本新增物化表达式列，将计算值物理存储于表中，提高数据检索速度。
