Azure DWH part 24: Elastic queries
This article will explain what is an elastic query and show an example.
2018-01-23
3,354 reads
Daniel Calbimonte
- Skills: ssas, ssis, ssrs, Power BI, Azure
Azure DWH part 23: Data Mining
SQL Server on-premises includes a module to create Data Mining models. We will show how to create them using ASDW.
2018-01-09
508 reads
Azure DWH part 22: Dynamic Management Views
The DMV are very effective and important to administer ASDWH. In this article we will show some important DMVs.
2017-12-26
922 reads
Azure DWH part 21: Using Excel in ASDWH
This time we will show how to access to Azure SQL Data Warehouse using Excel.
2017-12-19
604 reads
8 Ways to Export SQL Results To a Text File
This tip will show eight ways to export the results of a query to a text file.
2017-10-06 (first published: 2016-10-26)
501,978 reads
Azure DWH part 17: ADF:Import Data from SQL Server on-premises to ASDW
In this article we will learn to use Data Factory to import table from SQL Server to Azure SQL Data Warehouse.
2017-10-03
818 reads
Azure DWH part 16: BCP to import and export data
In Azure SQL Data Warehouse we can use BCP to export or import the data. In this article, we will show how to do it.
2017-09-26
2,199 reads
Azure DWH part 15: PolyBase and Azure Data Lake
In this article, we will learn how to query a csv file stored in the Data Lake using PolyBase.
2017-09-05
2,611 reads
Azure DWH part 13: Load data using Data Platform Studio
In this article we will load data from a SQL Server on-premises to Azure SQL Data Warehouse
2017-08-01
775 reads
Azure DWH part 12: Permissions, roles, logins and users
In this article we will show some common roles and queries related to Azure SQL Data Warehouse.
2017-07-25
5,094 reads
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The string_agg function
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Question of the Day
The string_agg function
We create the following table and then insert some records in it:
create table t1 ( id int primary key, category char(1) not null, product varchar(50) ); insert into t1 values (1, 'A', 'Product 1'), (2, 'A', 'Product 2'), (3, 'A', 'Product 3'), (4, 'B', 'Product 4'), (5, 'B', 'Product 5');What happens if we execute the following query in both Sql Server and PostgreSQL?
select id,
category,
string_agg(product, ';')
over (partition by category order by id
rows between unbounded preceding and unbounded following) as stragg
from t1; See possible answers