sql update from another database code example
Example 1: sql update from two different database
update table_name1
set column_name = T2.column_name
from database_name.dbo.table_name2 as T2
where table_name1.ID = T2.ID
Example 2: sql update from two different database
update table1
set col2 = T2.col2
from DataBaseName.dbo.table1 as T2
where table1.ID = T2.ID and
table1.col2 is null