3.3.2 Virtual Column Type
Mandatory.
Specify the type of derivation to be used for the virtual column.
Rules
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. |
Tips & Techniques
- The 3.3.1 Virtual Column Name's type and length must be in agreement with the type of virtual column selected. For example, a numeric column type must be specified for a mathematical calculation. The column length is validated for only some types of virtuals. Check that the length of the column is correct for the virtual type selected.