Helper functions for converting between internal and external date and time representations.
Helper functions for converting between internal and external date and time representations. Dates are exposed externally as java.sql.Date and are represented internally as the number of dates since the Unix epoch (1970-01-01). Timestamps are exposed externally as java.sql.Timestamp and are stored internally as longs, which are capable of storing timestamps with 100 nanosecond precision.
Build a map with String type of key, and it also supports either key case sensitive or insensitive.
Helper functions to check for valid data types.
Silences output to stderr or stdout for the duration of f