Heads up! To view this whole video, sign in with your Courses account or enroll in your free 7-day trial. Sign In Enroll
Preview
Video Player
00:00
00:00
00:00
- 2x 2x
- 1.75x 1.75x
- 1.5x 1.5x
- 1.25x 1.25x
- 1.1x 1.1x
- 1x 1x
- 0.75x 0.75x
- 0.5x 0.5x
Replacing parts of text is handy for privacy concerns, standardization or improving output.
To replace piece of strings of text in a larger body of text you can use the REPLACE() function.
SELECT REPLACE(<original value or column>, <target string>, <replacement string>) FROM <table>;
Cheat Sheets
Related Discussions
Have questions about this video? Start a discussion with the community and Treehouse staff.
Sign upRelated Discussions
Have questions about this video? Start a discussion with the community and Treehouse staff.
Sign up
Another handy thing you can do is replace
portions of text with other text values.
0:00
This could be good for
adding styling to a web page.
0:05
For example, you could highlight
the search term in search results
0:08
by adding code so
it appears bold in a web browser.
0:12
Or for privacy reasons you might want
to obfuscate e-mail addresses or
0:16
even help search for
non-standardized user input.
0:20
For example, if a user types in
their country code abbreviation
0:23
rather than their full country name.
0:27
Let's take a look at the replace function
now and an example on how to use it.
0:29
Here's the replace function.
0:36
Like the substring function, the replace
function takes more than one value.
0:37
The first value is the column of
value that you want to replace.
0:43
You may want to replace either a part or
all of the text in that column.
0:48
Then the target string.
0:53
This is what you want to replace.
0:55
Finally, the string you want
to replace the target with.
0:57
Let's say in our addresses
table we have a state column
1:01
where the users could have
entered their own value.
1:06
We want to search all addresses
in the state of California.
1:09
For the sake of simplicity,
let's say there's only two values
1:13
that are entered in the state for
California, California and CA.
1:18
Let's replace all instances
of California with CA.
1:23
Now we can use this to search for
all addresses in California.
1:28
When we run this query,
we get all instances of California and
1:33
CA no matter how it was
inserted into the database.
1:38
Again, we're just using
the function in the condition.
1:43
We can use this function over
in the select portion, too.
1:47
You need to sign up for Treehouse in order to download course files.
Sign upYou need to sign up for Treehouse in order to set up Workspace
Sign up