From the course: Oracle Database 12c: Basic SQL

Unlock the full course today

Join today to access over 22,600 courses taught by industry experts or purchase this course individually.

Using LOWER and UPPER

Using LOWER and UPPER - Oracle Database Tutorial

From the course: Oracle Database 12c: Basic SQL

Start my 1-month free trial

Using LOWER and UPPER

“

- [Instructor] Using the lower and upper string functions in Oracle allows us to control the case of data that is presented by our SQL query. So for example, let's start by selecting the first name, and last name of employees in the employees table, without a filter. As we can see, the data was entered using a combination of upper case and lower case characters. We can capitalize all letters of the first name by typing upper and placing the column name inside brackets. We can also make sure that all letters in the last name column will be presented as lower case by typing lower. Running this query again will show us that we got a fully capitalized first name, and a last name that's all in lower case characters. This is also especially useful when we want to filter based on string values. For example, let us say that we want to return all the employees who's first name are David. So if we'll just type select, first name. Let's delete the upper function for now. Last name, and delete…

Contents