Create trigger if referenced column from other db not exists

Question

I have such scenario: there are two databases DB1 and DB2.
DB1 has table MyTable and new column was added NewCol.
On the DB2 table a trigger was created that updates DB1.MyTable.NewCol.
Both scripts generated by SSDT are correct but the problem is during deployment. I have an automation tool which executes publish scripts in a predefined order. In this case DB2 is executed first and the scripts fails because referenced column from DB1 doesn't
exist yet.
Do you have any idea how to overcome this issue? Off course I could change an order in which scripts are executed and create DB1 before DB2. But in other scenario I could have a cross reference dependency and I am afraid there is no use for SSDT in such
case.

Answer 1

I found a workaround. The solution is to handle it manually in an pre-deployment script.
In this scenario I added pre-deployment script for DB2 to check if new column exists in DB1 and if not then create it.
IF (OBJECT_ID('ATC.dbo.tblDisplayStatusOverview') IS NOT NULL)
BEGIN
    PRINT 'Checking if columns exists ATC.tblDisplayStatusOverview.IPAddress...'
    IF (COL_LENGTH('ATC.dbo.tblDisplayStatusOverview', 'IPAddress') IS NULL)
    BEGIN
        PRINT 'Adding column ATC.tblDisplayStatusOverview.IPAddress...'
        ALTER TABLE ATC.dbo.tblDisplayStatusOverview
            ADD [IPAddress] VARCHAR (15)  NULL;
    END    
END