tsql update from another table code example
Example 1: sql update from different table
UPDATE
Sales_Import
SET
Sales_Import.AccountNumber = RAN.AccountNumber
FROM
Sales_Import SI
INNER JOIN
RetrieveAccountNumber RAN
ON
SI.LeadID = RAN.LeadID;
UPDATE
Sales_Import SI,
RetrieveAccountNumber RAN
SET
SI.AccountNumber = RAN.AccountNumber
WHERE
SI.LeadID = RAN.LeadID;
Example 2: inner join update
UPDATE
t1
SET
t1.c1 = t2.c2,
t1.c2 = expression,
...
FROM
t1
[INNER | LEFT] JOIN t2 ON join_predicate
WHERE
where_predicate;
Example 3: sql update with field from another table
UPDATE table1
SET price=(SELECT price FROM table2 WHERE table1.id=table2.id);