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Learn Intermediate SQL

Working with the String Data Type

Explore how to work with string data types in SQL, including the importance of using single quotes for string literals and understanding case sensitivity. Learn to avoid common syntax errors and filter data accurately using strings in queries.

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Difference between identifiers and string literals

Let’s try to compile a list of sales attributed to a particular salesperson, for instance, Alice Webster. Does it seem straightforward? Let’s proceed with the task and see the results:

MySQL
SELECT SalesPerson, SaleDate, ProductName, SalesAmount
FROM SalesData
WHERE SalesPerson = alice Webster;
...