Suponha que você tenha duas tabelas, table1 e table2, e você queira fazer um LEFT JOIN entre elas e aplicar a função COALESCE em uma coluna da table2. SELECT t1.*, COALESCE(t2.column2, 'N/A') AS ...
This repository provides an in-depth exploration of advanced SQL topics, including subqueries, the CASE statement, string functions, and the COALESCE function. It is tailored for SQL enthusiasts who ...
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