When choosing from a function that generates a record containing a variable quantity of columns, it is important to first understand what the function returns and what the columns represent. Once you have a clear understanding of the columns and their corresponding values, you can use the following steps to choose from the function:
For example, if the function returns a record containing columns named "Name", "Age", "Address", and "Phone", and you are interested in selecting only the Name and Age columns, you would use the following syntax:
SELECT Name, Age FROM function_name();
This will return a table with only the Name and Age columns from the record generated by the function.
Asked: 2021-11-09 11:00:00 +0000
Seen: 11 times
Last updated: Oct 18 '21