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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 · 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.
28 maj 2016 · 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: I want to update the table with these values, so I need to create queries like this:
1) Like the first example, layout your data into columns. 2) Double click into the next blank column beside you’re first row and insert the following formula. = “update table_name set column_value_to_update = ‘” & C2 & “‘ where column_primaryKey = ‘” & A2 & “‘;”
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.
2 cze 2016 · I'm trying to create an sql query that pulls two columns from the excel file (JobNo and CustManRef), and updates the field 3rdPartyReffrom the job_new table but only where the field DocketNofrom the job_dockets is equal to the JobNocolumn from the excel file.
