mysql update multiple rows

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mysql update multiple rows

You can do it this way: UPDATE table_users SET cod_user = (case when user_role = 'student' then '622057' when user_role = 'assistant' then '2913659' when user_role = 'admin' then '6160230' end), date = ', This is most clear way. UPDATE test SET col2 = CASE col1 WHEN 'test1' THEN 1 WHEN 'test2' THEN 3 WHEN 'test3' THEN 5 END, colx = CASE col1 WHEN 'test1' THEN 'xx' WHEN 'test2' THEN 'yy' WHEN 'tes, import MySQLdb def update_many(data_list=None, mysql_table=None): """ Updates a mysql table with the data provided. If the key is not unique, the data will be inserted into the table. The dictionaries must have all the same keys due to how, you can use cases like below: UPDATE example_table SET variable1 = CASE id WHEN 1 THEN 12 WHEN 2 THEN 42 WHEN 3 THEN 32 WHEN 4 THEN 51 END WHERE id BETWEEN 1 AND 4 ..., I think you can use the join with the able table and update the column as below: UPDATE mcq, (SELECT stat.mcq_id, ROUND( stat.total_score / stat.num_taken, 2 ) AS avg_score FROM (SELECT user_mcq.mcq_id, SUM(score ) AS total_score, COUNT( user_mcq.id ) AS, UPDATE mytable SET fruit = CASE WHEN id=1 THEN 'orange' ELSE 'strawberry' END, drink = CASE WHEN id=1 THEN 'water' ELSE 'wine' END, food = CASE WHEN id=1 THEN 'pizza' ELSE 'fish' END WHERE id IN (1,2);. Per, Hi SitePoint members. I have been perusing through the solutions for "updating multiple rows with one query", but I have a pressing question: How would one "SET" multiple column values with one query? Here is my example...the normal u,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. For the multiple-table syntax, UPDATE updates

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mysql update multiple rows 相關參考資料
sql - MySQL - UPDATE multiple rows with different values in one query ...

You can do it this way: UPDATE table_users SET cod_user = (case when user_role = 'student' then '622057' when user_role = 'assistant' then '2913659' when user_role = &...

https://stackoverflow.com

sql - Update multiple rows in a single MySQL query - Stack Overflow

This is most clear way. UPDATE test SET col2 = CASE col1 WHEN 'test1' THEN 1 WHEN 'test2' THEN 3 WHEN 'test3' THEN 5 END, colx = CASE col1 WHEN 'test1' THEN 'xx&#3...

https://stackoverflow.com

How to update multiple rows with single MySQL query in python ...

import MySQLdb def update_many(data_list=None, mysql_table=None): """ Updates a mysql table with the data provided. If the key is not unique, the data will be inserted into the table. ...

https://stackoverflow.com

sql - Update multiple rows in 1 column in MySQL - Stack Overflow

you can use cases like below: UPDATE example_table SET variable1 = CASE id WHEN 1 THEN 12 WHEN 2 THEN 42 WHEN 3 THEN 32 WHEN 4 THEN 51 END WHERE id BETWEEN 1 AND 4 ...

https://stackoverflow.com

mysql - Update multiple rows in a table based on result from ...

I think you can use the join with the able table and update the column as below: UPDATE mcq, (SELECT stat.mcq_id, ROUND( stat.total_score / stat.num_taken, 2 ) AS avg_score FROM (SELECT user_mcq.mcq_...

https://stackoverflow.com

mysql - Updating multiple rows with different values in one query ...

UPDATE mytable SET fruit = CASE WHEN id=1 THEN 'orange' ELSE 'strawberry' END, drink = CASE WHEN id=1 THEN 'water' ELSE 'wine' END, food = CASE WHEN id=1 THEN 'piz...

https://dba.stackexchange.com

Updating multiple columns and multiple rows with one MySQL query ...

Hi SitePoint members. I have been perusing through the solutions for "updating multiple rows with one query", but I have a pressing question: How would one "SET" multiple column v...

https://www.sitepoint.com

MySQL :: MySQL 5.5 Reference Manual :: 13.2.11 UPDATE Syntax

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 ...

https://dev.mysql.com