Oracle To_char() is an SQL function which will convert a number or date to string.
SQL REVERSE function is used to return reverse of a string. It’s supported by MS SQL Server, MySQL. Oracle supports it too, but maybe not in the documents.
The SQL EXTRACT() function is used to get a value (year, month, day, etc.) from a date/time expression. It’s supported by MySQL and Oracle, but the syntax is different. In this post we’ll discuss it’s syntax and example in Oracle.