How can I update the “order date” column in the “order” table?
I have been assigned a task which is related to updating a column in a table by using the “orders” based on the information from another table whose name is “customers”. Explain to me how can I write an SQL statement for updating the “order date” column in the table of “orders”?
In the context of SQL, you can update the “order date” column in the “order” table based on the “registration date” from another table entitled “customers table” by using the SQL update from select statement with the query of SELECT. Here is the example given:-
UPDATE orders
SET order_date = (
SELECT registration_date
FROM customers
WHERE customers.customer_id = orders.customer_id
);This above coding analogy will update the order date in the order tables with the corresponding registration date from the customer table linked by the customer ID field.
Ensure that fields that are used for comparison such as customer_id should be correctly mapped and also should exist in both tables so that there is a guaranteed update available.
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