The top 10 SQL questions on functions given in a Quiz format. Highly useful for SQL developers to apply this knowledge in your project directly. Read more.
The syntax as given in Oracle built-in function, it is to convert lower case letters into upper case letters. The explanation given here is with examples. So that you use in your SQL program directly.
The main advantage of REPLACE function is SQL is to replace a string with another string. Read more.
How to modify SQL in best way is I have given in this post two options. You can choose appropriately.