Search results
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
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:
11 lip 2024 · The IF () function in MySQL is a powerful tool that allows you to implement conditional logic directly within your SQL queries. It takes three parameters: a condition to evaluate, a value to return if the condition is true, and a value to return if the condition is false.
16 kwi 2016 · We are told to watch out for things being set to null (we dont want) by using the IN clause in the following: UPDATE Tests SET TestScore = CASE WHEN TestId = 1...
26 kwi 2020 · The UPDATE statement can be used to update a single column, a larger set of records (through the use of conditions), and/or the entire table in a database. The condition(s) can be a boolean, a string check, or mathematical sequence that resolves to a boolean (greater than, less than, etc.).
The SQL 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.
17 lis 2010 · REPLACE works exactly like INSERT, except that if an old row in the table has the same value as a new row for a PRIMARY KEY or a UNIQUE index, the old row is deleted before the new row is inserted. REPLACE INTO table_name(column_name1, column_name2, column_name3) VALUES("col_value_1", "col_value_2", "col_value_3");
