The ACOS function in Oracle SQL / PLSQL is used to get arc cosine of a number. Syntax for the ACOS function in Oracle SQL / PLSQL is: SELECT ACOS(N) FROM table_name; N is the number whose arc cosine is to be determined. Example 1: Will return “1.15927948072741” Example 2: Will return “1.5707963267949” Example 3: […]