Updating fields in sql

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Account Number FROM Retrieve Account Number WHERE [Sales_Lead].[dbo].[Sales_Import]. Lead ID UPDATE [Asp Net Users] SET [Asp Net Users].[Organization Id] = [User Profile].[Organization Id], [Asp Net Users].[Name] = [User Profile].[Name] FROM [Asp Net Users], [User Profile] WHERE [Asp Net Users].[Id] = [User Profile].[Id]; UPDATE Sales_Import SET Account Number = (SELECT Retrieve Account Number. Table Namea_B_ID) WHEN MATCHED THEN Update set Price=Calc Tot ; DECLARE @TB1 TABLE ( No Int , Name NVarchar(50) ) DECLARE @TB2 TABLE ( No Int , Name NVarchar(50) ) INSERT INTO @TB1 VALUES(1,'asdf'); INSERT INTO @TB1 VALUES(2,'awerq'); INSERT INTO @TB2 VALUES(1,';oiup'); INSERT INTO @TB2 VALUES(2,'lkjhj'); SELECT * FROM @TB1 UPDATE @TB1 SET Name =S.

Account Number FROM Retrieve Account Number WHERE Sales_Import.leadid =Retrieve Account Number.

Although the question is very interesting, I have seen in many forum sites and made a solution using INNER JOIN with screenshots.

Col2 AS _Col2 FROM T1 JOIN T2 ON T1= T2/*Where clause added to exclude rows that are the same in both tables Handles NULL values correctly*/ WHERE EXISTS(SELECT T1. UPDATE suppliers SET supplier_name = (SELECT FROM customers WHERE customers.customer_id = suppliers.supplier_id) WHERE EXISTS (SELECT FROM customers WHERE customers.customer_id = suppliers.supplier_id); UPDATE Table SET Table.col1 = other_table.col1, Table.col2 = other_table.col2 --select Table.col1, other_table.col, Table.col2,other_table.col2, * FROM Table INNER JOIN other_table ON = other_UPDATE from SELECT with INNER JOIN in SQL Database Since there are too many replies of this post, which are most heavily up-voted, I thought I would provide my suggestion here too.

update t1 -- just reference table alias here set t1.somevalue = t2.somevalue from table1 t1 -- these rows will be the targets inner join table1 t2 -- these rows will be used as source on ..................

-- the join clause is whatever suits you DECLARE @tbl1 TABLE (id INT, col1 VARCHAR(10), col2 VARCHAR(10)) DECLARE @tbl2 TABLE (id INT, col1 VARCHAR(10), col2 VARCHAR(10)) INSERT @tbl1 SELECT 1, 'a', 'b' UNION SELECT 2, 'b', 'c' INSERT @tbl2 SELECT 1, '1', '2' UNION SELECT 2, '3', '4' UPDATE t SET t.col1 = a.col1 ,t.col2 = a.col2 FROM ( SELECT id, col1, col2 FROM @tbl2) a INNER JOIN @tbl1 t ON = SELECT * FROM @tbl1 SELECT * FROM @tbl2 Merge into product P1 using Product_Bak P2 on P1= P2.id; when matched then update set p1.[description] = p2.[description], p1= P2.

Now, Here I want to make some changes in third and fourth row, to complete this action, I execute UPDATE command with INNER JOIN. You can see how Third and Fourth records of table schoolold easily replaced with table schoolnew by using INNER JOIN with UPDATE statement.

One other piece of advice is if you're going to be updating a large data set with indexes, and the source subset is smaller than your target but both tables are very large, move the changes to a temporary table first.

I tried to merge two tables that were nearly two million rows each and 20 records took 22 minutes.

Lead ID) WHERE Sales_Import.leadid = (SELECT Retrieve Account Number.

Lead ID FROM Retrieve Account Number WHERE Sales_Import.leadid = Retrieve Account Number. Factor Rate) as Calc Tot FROM Table Namea_A c4 inner join Table Namea_B p on c4.

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