Admission discharge procedure

Admission procedure:- Definition :- Admission is defined as allow a patient to stay in hospital for observation investigation treatment and care. Purpose:- To establish guideline regarding admission of patient . To …

Aggregate functions in SQL Lecture by Ritu Kumawat.

Aggregate functions calculate the values of a column and return single value as result. These are: 1.avg() 2.min() 3.max() 4.count() 5.sum() 6.first() 7.last()