Definition of irrigation. 1  1 : the therapeutic flushing of a body part with a stream of liquid. 2  2 : the watering of land by artificial means to foster plant growth.
Answer: To start with, Oracle Real Application Clusters (RAC) are a database system involving a configuration of multiple hosts or servers joined together with clustering software and accessing the shared disk storage structures.
In Oracle, TRUNC(datetime, unit) function allows you to truncate a datetime value to the specified unit (set zero time, set the first day of the month i.e). In. Server, you can use various expressions using CONVERT function to get the same result. Oracle: