mysql update table from another table
UPDATE tableB
INNER JOIN tableA ON tableB.name = tableA.name
SET tableB.value = IF(tableA.value > 0, tableA.value, tableB.value)
WHERE tableA.name = 'Joe'mysql update table from another table
UPDATE tableB
INNER JOIN tableA ON tableB.name = tableA.name
SET tableB.value = IF(tableA.value > 0, tableA.value, tableB.value)
WHERE tableA.name = 'Joe'update table mysql
-- Things in brackets are optional
-- IGNORE modifier updates rows even if errors occur (ie: the rows that cause errors are simply not updated)
UPDATE [IGNORE] table_name
SET
column_name1 = expr1,
column_name2 = expr2,
...
[WHERE
condition]; -- WHERE tells us which rows to update based on said conditionmysql update value
UPDATE employees
SET
email = '[email protected]'
WHERE
employeeNumber = 1056;Code language: SQL (Structured Query Language) (sql)Copyright © 2021 Codeinu
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