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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
26 lut 2014 · 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). Perhaps you could adapt this solution to your own situation.
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:
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.
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. Resources. MySQL ODBC Driver. Excel Version: Excel 2007, Excel 2010, Excel 2013, Excel 2016, Excel 2019, Excel 365.
29 kwi 2015 · begin. 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:
24 mar 2017 · I am currently able to export the data from this table into an Excel file using phpmyadmin. I modify it in Ms Excel and save it. Now, I want to reimport it and update the table with the modification done on the data without having to drop/empty the table and reimport.
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