Using Ranking Functions to Deduplicate Data
This article from Andrew Riley will show you how you can use the RANK and ROW_NUMBER Ranking Functions to deduplicate data in SQL Server 2005
2010-07-27
13,963 reads
This article from Andrew Riley will show you how you can use the RANK and ROW_NUMBER Ranking Functions to deduplicate data in SQL Server 2005
2010-07-27
13,963 reads
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Let’s consider the following script that can be executed without any error on both SQL Sever and PostgreSQL. We define the table t1 in which we insert three records:
create table t1 (id int primary key, city varchar(50)); insert into t1 values (1, 'Rome'), (2, 'New York'), (3, NULL);If we execute the following query, how will the records be sorted in both environments?
select city from t1 order by city;See possible answers