T-SQL查询以选择具有几列相同值的行（Azure SQL数据库）

Question

I need help with writing a T-SQL query on a table shown on the picture below. The table has ambiguous info about buildings, some of them appears more then one time, that is wrong. I need to select only rows that has the same street and building values, for I can manually delete bad rows then. So I want to select rows 1,2,4,5 on the picture below. I use an Azure SQL Database, it has some limitations on T-SQL.

Answer 1

I'm pretty sure Azure supports subqueries and window functions. So, try this:

select t.*
from (select t.*, count(*) over (partition by street, building) as cnt
      from table t
     ) t
where cnt > 1;