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Virtual columns were introduced in Oracle 11g to conveniently include computed logic directly in a table, appearing just like any other column. The expression used must be deterministic, meaning it must always produce the same result given the same i...

Databases are more than rows of data—they’re carefully structured systems. SQL DDL (Data Definition Language) is used to build and modify this structure. It’s the part of SQL that deals with how data is stored, not the data itself. What Is SQL DDL? D...
