Answers for "sql update from table"

sql update from different table

-- SQL Server
UPDATE Sales_Import
SET Sales_Import.AccountNumber = RAN.AccountNumber
FROM Sales_Import SI
INNER JOIN RetrieveAccountNumber RAN
ON SI.LeadID = RAN.LeadID;
-- MySQL & MariaDB
UPDATE Sales_Import SI, RetrieveAccountNumber RAN
SET SI.AccountNumber = RAN.AccountNumber
WHERE SI.LeadID = RAN.LeadID;

how to update values in sql

//to update value

UPDATE students SET course_id = 102
WHERE last_name = 'Jones'; -> 
                 if there is no condition it will update all!