How to retrieve the records of the table from database to another database - sql

Question

I have two tables with different database:
AccntID from table 'account' <--database name 'ECPNWEB'
AccountTID from table 'tblPolicy' <--database name 'GENESIS'
Now I want to insert 'tblPolicy' like this: <--database 'GENESIS'
INSERT INTO dbo.tblPolicy
(
PolicyID ,
AccountTID ,
DistributorID ,
CARDNAME ,
DENOMINATION ,
RETAILPRICE ,
COSTPAYABLE ,
ECPAYFEES ,
PLUCODE
)
-- Insert statements for procedure here
select t.* from
(Select AccountTID=#AccntID, DistributorID=#DistributorID, CARDNAME=#CARDNAME, DENOMINATION=#DENOMINATION, RETAILPRICE=#RETAILPRICE, COSTPAYABLE=#COSTPAYABLE, ECPAYFEES=#ECPAYFEES, PLUCODE=#PLUCODE) t,
account a
where a.AccntID = t.AccountTID --for account
Now what I want to do is to insert this "ONLY" to tblPolicy connected with the 'account' table with different database 'GENESIS'

Answer 1

You can select from two databases as shown below:
SELECT table1.SomeField, table2.SomeField
FROM [ServerName1].[Database1].[dbo].[Table1] table1
INNER JOIN [ServerName2].[Database2].[dbo].[Table2] table2
ON table1.SomeField = table2.SomeField

Answer 2

The key point is [ServerName].[DatabaseName].[databaseowner].[tableName]..i.e. Fully qualified name
This should work
;With Cte As
(
Select AccountTID=#AccntID
, DistributorID=#DistributorID
, CARDNAME=#CARDNAME
, DENOMINATION=#DENOMINATION
, RETAILPRICE=#RETAILPRICE
, COSTPAYABLE=#COSTPAYABLE
, ECPAYFEES=#ECPAYFEES
, PLUCODE=#PLUCODE
)
INSERT INTO GENESIS..dbo.tblPolicy
(
PolicyID ,
AccountTID ,
DistributorID ,
CARDNAME ,
DENOMINATION ,
RETAILPRICE ,
COSTPAYABLE ,
ECPAYFEES ,
PLUCODE
)
Select t.*
From Cte t,ECPNWEB..account a WITH (NOLOCK)
where a.AccntID = t.AccountTID