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Select some columns
Filtering rows
Logic
Text patterns
15. The percentage sign (%)
To be or NULL to be
A little bit of mathematics
Let's practice

Instruction

Great! Now, what happens if we don't know precisely what letters we're looking for? With text values, you can always use the LIKE operator instead of the equality sign. What change does it make? Well, take a look at the following example:

SELECT *
FROM user
 WHERE name LIKE 'A%';

LIKE allows for the use of the percentage sign (%). The percentage sign applied in the example matches any number (zero or more) of unknown characters.

As a result, we'll obtain all users whose name begins with the letter 'A'. We may not remember someone's exact name, but we know it begins with an A and that's enough. Convenient, isn't it?

Exercise

Select vin, brand, and model of all cars whose brand begins with an F.

Stuck? Here's a hint!

Type:

SELECT
  vin,
  brand,
  model
FROM car
WHERE brand LIKE 'F%';