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26 kwi 2016 · Simply use SIGN() in mysql It returns 1 as a positive value and -1 is a negative value. Example. SELECT SIGN(500); -- (Output is 1) SELECT SIGN(2500); -- (Output is 1) SELECT SIGN(-999); -- (Output is -1) SELECT SIGN(-5); -- (Output is -1)
30 kwi 2015 · I found 2 solutions that do exactly the same: SUM(IF(ordered_item.amount < 0, 0, ordered_item.amount)) as purchases. And. SUM(CASE WHEN ordered_item.amount < 0 THEN 0 ELSE ordered_item.amount END) as purchases.
25 sty 2024 · In this tutorial, we will explore various MySQL comparison operators such as greater than (>), less than (<), equal to (=), and more, through concise explanations and code examples. Basic Comparison Operators
mysql> SELECT 'a' IN (0), 0 IN ('b'); -> 1, 1. In both cases, the comparison values are converted to floating-point values, yielding 0.0 in each case, and a comparison result of 1 (true). The number of values in the IN() list is only limited by the max_allowed_packet value.
19 paź 2018 · In MySQL, the SIGN() function returns the sign of a number. That is, it indicates whether or not the value is a positive number, a negative number, or zero. You provide the value as an argument when calling the function.
Definition and Usage. The IF () function returns a value if a condition is TRUE, or another value if a condition is FALSE. Syntax. IF (condition, value_if_true, value_if_false) Parameter Values. Technical Details. Works in: From MySQL 4.0. More Examples. Example. Return 5 if the condition is TRUE, or 10 if the condition is FALSE:
2 cze 2017 · I want to retrieve the row if any of the 3 integer field in a row is greater than zero. All the field has default value of zero. Which of the following query is better? While checking the execution time both the query gives same numbers and the result data of the query is exactly the same.
