Mandatory.
Specify the type of derivation to be used for the virtual column.
Allowable values are:
Map a date held in a real column in format (YYMMDD) into a virtual column in format (DDMMYY). | |
Substring 1 real column into multiple virtual columns | |
Substring multiple real columns into one virtual column | |
Specify the mathematical calculation extended definition of the virtual column currently being worked with. | |
Allows you to specify RDMLX code to populate a virtual column when reading from a table, and to populate a real column when writing to a table. |