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  1. stackoverflow.com › questions › 2177543MySQL - Using If Then Else in MySQL UPDATE or SELECT Queries

    1 lut 2010 · How do I update a table and set different values upon the condition evaluating to True. For instance : UPDATE Table SET A = '1' IF A > 0 AND A < 1 SET A = '2' IF A > 1 AND A < 2 WHERE A IS NOT NULL;

  2. dirask.com › posts › MySQL-UPDATE-query-with-IF-condition-conditional-update-pOv4JDMySQL - UPDATE query with IF condition (conditional update)

    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:

  3. dba.stackexchange.com › questions › 135505mysql - Multiple Update with Multiple Conditions - Database ...

    16 kwi 2016 · For this example, you would have to use the standard logical operators: UPDATE Tests SET TestScore = CASE WHEN (TestId = 10 AND TestSubId = 25) THEN 1000 WHEN (TestId = 11 AND TestSubId = 22) THEN 1100 END, TestScore2 = CASE WHEN (TestId = 10 AND TestSubId = 25) THEN 2000 WHEN (TestId = 11 AND TestSubId = 22) THEN 2100 END WHERE (TestId = 10 ...

  4. www.geeksforgeeks.org › how-to-query-between-two-dates-in-mysqlHow to Query Between Two Dates in MySQL? - GeeksforGeeks

    12 kwi 2024 · To query between two dates we use the BETWEEN keyword to specify the range. We can perform certain operations between two dates such as SELECT, UPDATE, DELETE, etc. Syntax: SELECT * FROM table_name. WHERE date BETWEEN 'YYYY-MM-DD' AND 'YYYY-MM-DD'; SELECT * FROM table_name: Retrieves all columns from the specified table.

  5. www.w3schools.com › mysql › mysql_updateMySQL UPDATE Statement - W3Schools

    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.

  6. stackoverflow.com › questions › 1886928MySQL UPDATE using IF condition - Stack Overflow

    11 mar 2015 · UPDATE user p. JOIN user_roles ur ON p.id = ur.user_id. SET ur.end_date = NOW() , p.end_date = NOW() , p.reason = "Retired". WHERE p.id = 5. AND ur.end_date IS NULL. I was thinking of doing something like this: IF EXISTS (SELECT id FROM user_roles.

  7. dev.mysql.com › doc › mysqlMySQL :: MySQL 8.4 Reference Manual :: 15.2.17 UPDATE Statement

    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.

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