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Introduction
Concatenation
5. Concatenation operator || continued
Simple text functions
How to modify strings
Revision

## Instruction

Good job! The concatenation operator is a very useful tool provided by the SQL standard. Mind you, though, that there are a few databases that don't comply with the standard in this regard. For example:

• SQL Server and Microsoft Access use the plus sign (+) as the concatenation operator.
• MySQL uses the function CONCAT() like this:
SELECT CONCAT(first_name,' ',last_name)
FROM copywriter;

Now that you've been officially warned, we can go back to || and do one more exercise.

## Exercise

For each item, show the following sentence: 'ID X is Y.', where X is the id of the item and Y is its name.

### Stuck? Here's a hint!

Use || as many as four times and remember about spaces and a full stop at the end.