Most relational databases such as Oracle and MS SQL provide some form of built in functions to pivot tables row values into column values and vice versa (See PIVOT/UNPIVOT functions in MS SQL and ...

We can also add an attribute "read only" or "protect" to a data.table, and if the user had protected the data.table in that way, .:= would not work on it. 👍 React with 👍 76 jeffkeller87, ...