1. A method in a host organization having at least a processor and a memory therein to execute instructions, the method comprising: receiving a request at the host organization from a user device to display a tabular dataset; retrieving the tabular dataset from a database system executing at the host organization; displaying the tabular dataset as output to the user device, the displayed output including a plurality of data values depicted as known values and a plurality of null values depicted as unknown values; receiving input from the user device to populate the tabular dataset to a specified fill percentage; querying the database system for predicted values to populate a portion of the null values of the tabular dataset, wherein querying the database system comprises issuing a PREDICT command term and passing as a parameter one or more specified columns of the tabular dataset to be predicted; receiving a distribution for every one of the plurality of null values within the tabular dataset responsive to querying the indices for the predicted values; calculating a credible interval for each distribution received; populating the portion of the null values of the tabular dataset with the predicted values until the specified fill percentage is reached; and displaying the tabular dataset having the predicted values populated therein as updated output to the user device by displaying selected ones of the predicted values that correspond to a calculated credible interval in excess of a minimum threshold.
6. The method of claim 1 , further comprising: receiving a confidence indicator for every one of the plurality of null values within the tabular dataset responsive to querying the database system for the predicted values, the confidence indicator based on a comparison of known results corresponding to known and non-null values within the dataset with the predicted values; and wherein displaying the tabular dataset having the predicted values populated therein as updated output to the user device further includes displaying the selected ones of the predicted values which correspond to the confidence indicator being in excess of a default minimum confidence threshold or a user specified minimum confidence threshold when present.