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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.
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:
21 sie 2024 · MySQL IF-THEN-ELSE Statement: When the condition checks to be TRUE, the statements between IF-THEN and ELSE execute. On the other hand, the statements (else-statements) between the ELSE and END IF execute. Syntax: IF condition THEN. statements; ELSE. else-statements; END IF; Parameters Used:
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.
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 ...
23 sie 2012 · If the ID is column A and the phone number is column B, then the function would just be: concatenate("update yourTableName set phonenumber = '", A1, "' where ID = ", B1, ";") Then fill down and copy the resulting commands into PHPMyAdmin's SQL tab.
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 & “‘;”.
