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SQLServer Clean Code in SQL

Formatting and Spelling of Keywords and Names

Table/Column Names


Two common ways of formatting table/column names are CamelCase and snake_case:

SELECT FirstName, LastName
FROM Employees
WHERE Salary > 500;
SELECT first_name, last_name
FROM employees
WHERE salary > 500;

Names should describe what is stored in their object. This implies that column names usually should be singular. Whether table names should use singular or plural is a heavily discussed question, but in practice, it is more common to use plural table names.

Adding prefixes or suffixes like tbl or col reduces readability, so avoid them. However, they are sometimes used to
avoid conflicts with SQL keywords, and often used with triggers and indexes (whose names are usually not mentioned in queries).

Keywords


SQL keywords are not case sensitive. However, it is common practice to write them in upper case.

Conclusion

In this page (written and validated by ) you learned about SQLServer Clean Code in SQL . What's Next? If you are interested in completing SQLServer tutorial, your next topic will be learning about: SQLServer SQL Injection.



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