Three SQL Aliasing Habits That Make Your Queries Easier to Read and Maintain

SQL aliases are extra names assigned to columns or tables in a query without altering the underlying stored data. Using the AS keyword on a calculated column gives it a readable header, enabling clean exports, reliable sorting, and unambiguous references in the same query. Table aliases — typically single letters — clarify which table each column belongs to once a query involves more than one table. Without aliases, calculated columns receive unwieldy auto-generated headers that break ORDER BY clauses and produce unreadable CSV exports. Adopting three simple habits — naming every calculated column, assigning short table nicknames, and prefixing columns with those nicknames — is enough to make SQL queries look professionally written.