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1 lut 2010 · UPDATE table SET A = IF(A > 0 AND A < 1, 1, IF(A > 1 AND A < 2, 2, A)) WHERE A IS NOT NULL; you might want to use CEIL() if A is always a floating point value > 0 and <= 2
24 paź 2015 · ON DUPLICATE KEY UPDATE. highest_mark = GREATEST(highest_mark, VALUES(highest_mark)) we can use MySQL GREATEST function to update a column if value is greater than current value. if the value being updated is greater than existing value, it.
In this article, we would like to show you UPDATE query with IF condition in MySQL. Quick solution: UPDATE `table_name` SET `column_name` = IF(condition , if_true, if_false); Practical example. To show UPDATE query with IF condition, we will use the following users table:
25 sty 2024 · Use the > operator to determine if a value is greater than another. SELECT * FROM products WHERE price > 100; This retrieves all products with a price greater than 100. Less than (<) The < operator is used to find values that are less than a certain value. SELECT * FROM orders WHERE quantity < 10;
The WHERE clause, if given, specifies the conditions that identify which rows to update. With no WHERE clause, all rows are updated. If the ORDER BY clause is specified, the rows are updated in the order that is specified. The LIMIT clause places a limit on the number of rows that can be updated.
The MySQL UPDATE Statement. The UPDATE statement is used to modify the existing records in a table. UPDATE Syntax. UPDATE table_name. SET column1 = value1, column2 = value2, ... WHERE condition; Note: Be careful when updating records in a table! Notice the . WHERE clause in the UPDATE statement.
23 cze 2013 · UPDATE relation SET name1 = IF(userid1 = 3, 'jack', name1), name2 = IF(userid2 = 3, 'jack', name2) WHERE (userid1 = 3 AND userid2 = 4) OR (userid1 = 4 AND userid2 = 3); The IF function is used like this: IF(condition, value_if_true, value_if_false)
