Function Argument Modifier
Q
What Is Function Argument Modifier?
✍: FYIcenter.com
A
Function argument modifier is an expression placed before or after
a function argument to modify the behavior of the function.
For example:
SET @str = 'Yahooo'; SELECT TRIM(TRAILING 'o' FROM @str); -- +------------------------------+ -- | TRIM(TRAILING 'o' FROM @str) | -- +------------------------------+ -- | Yah | -- +------------------------------+
Sometimes argument modifiers are used to make the function call more readable. For example:
SET @str = 'Yahooo';
SELECT POSITION('o' IN @str), LOCATE('o', @str);
-- +-----------------------+-------------------+
-- | POSITION('o' IN @str) | LOCATE('o', @str) |
-- +-----------------------+-------------------+
-- | 4 | 4 |
-- +-----------------------+-------------------+
⇒ Variable Number of Arguments
⇐ Function Name Case Insensitive
2023-11-14, 1616🔥, 0💬
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