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1 lut 2010 · Here's a query to update a table based on a comparison of another table. If record is not found in tableB, it will update the "active" value to "n". If it's found, will set the value to NULL. UPDATE tableA LEFT JOIN tableB ON tableA.id = tableB.id SET active = IF(tableB.id IS NULL, 'n', NULL)"; Hope this helps someone else.
26 lut 2014 · MySQL: Update table using subquery, Excel data. Here’s a snippet of SQL code and a procedure for updating a MySQL database table using a subquery and data from Microsoft Excel (or similar).
28 maj 2016 · I often find myself using Excel to create update queries. When I need to update multiple rows with different values for a column, I simply use Excel to create the update queries (multiple). Here's an example SQL Fiddle. If I have a list like: Productname,Text. OpenIDM,testing. OpenAM,Tested.
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:
How to connect to a MySQL database from Excel, fetch the latest data from it, and work with that data inside your spreadsheets in Excel. This tutorial is step-by-step and shows you how to do everything, from downloading the ODBC drivers (explained in the tutorial) to importing and transforming the data from specific tables in MySQL.
29 kwi 2015 · IF EXISTS (select * from users where username = 'something') THEN. update users set id= 'some' where username = 'something'; ELSE. insert into users (username) values ('something'); END IF; end $$. delimiter ; and call it like this: call select_or_insert();
4 lis 2014 · I have to update the link between product and manual based on a list of data(with 2-3000 entries) that contains the following two columns: ProductPartNumber, NewProductPartNumber. What I want to accomplish is go through the ProductManual table and where the IDProduct corresponds to a ProductPartNumber from the list of data, replace it with the ...
