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Oct 23, 2024 · The COALESCE function in SQL is a powerful tool for handling NULL values. It allows you to return the first non-NULL value from a list of expressions, ensuring that your query retrieves valid data even if some fields contain NULLs. Syntax: COALESCE (expression1, expression2, …, expressionN) This function evaluates the expressions from left to ...
to grow together or unite to form a single body or organization; unify; fuse. : to cause to unify.... See the full definition
May 24, 2022 · George. Graue. NULL. We can use the COALESCE () function to replace the NULL value with a simple text: SELECT first_name, last_name, COALESCE (marital_status, 'Unknown') FROM persons. The COALESCE () function is used to return the value 'Unknown' only when marital_status is NULL. When marital_status is not NULL, COALESCE () returns the value of ...
COALESCE. SQL COALESCE is a useful function that returns the first non-null value from a list of expressions. It takes any number of expressions as arguments, and returns the first non-null expression. If all expressions evaluate to null, then it returns null.
coalesce (into something) to come together to form one larger group, substance, etc. synonym amalgamate. The puddles had coalesced into a small stream. the markets have coalesced into a single global market.
A complete guide to the word "COALESCE": definitions, pronunciations, synonyms, grammar insights, collocations, examples, and translations.
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