SQL Server CROSS APPLY and OUTER APPLY
Arshad Ali demonstrates what the APPLY operator is, how it differs from regular JOINs, and what its applications are.
2016-02-17
7,571 reads
Arshad Ali demonstrates what the APPLY operator is, how it differs from regular JOINs, and what its applications are.
2016-02-17
7,571 reads
Traditional deployments of Azure SQL Database involve identifying projected resource requirements and selecting individual Azure SQL Database instances. For fluctuating workloads, this frequently results in over- or under-provisioning. To address this challenge, Microsoft offers another approach to sizing Azure SQL Database that relies on Elastic Database Pools. Marcin Policht takes a look.
2016-02-16
5,037 reads
You can develop a Power BI Dashboard that uses an R machine learning script as its data source and custom visuals. Here is a simple example that shows how to connect to data sources over the Internet, cleanse, transform and enrich the data through the use analytical datasets returned by the R script, design the dashboard and finally share it.
2016-02-15
4,931 reads
Are you thinking about the cloud yet? Redgate is conducting some research into cloud adoption to better understand both the drivers and the blockers. Whether or not you’ve taken the plunge yet, they would love to hear from you. Participate in the survey and be entered into a draw to win an Amazon gift card worth $100.
2016-02-12
4,954 reads
When maintaining or refactoring an unfamiliar database, you'll need a fast way to uncover all sorts of facts about the database, its tables, columns keys and indexes. SQL Server's plethora of system catalog views, INFORMATION_SCHEMA views, and dynamic management views contain all the metadata you need, but it isn't always obvious which views are best to use for which sort of information. Many of us could do with a simple explanation, and who better to provide one than Rob Sheldon?
2016-02-12
6,624 reads
Because SSIS is case sensitive, random VS_NEEDSNEWMETADATA errors on case-insensitive databases may indicate issues in your database change management & deployment process.
2016-02-11
2,461 reads
Are you thinking about the cloud yet? Redgate is conducting some research into cloud adoption to better understand both the drivers and the blockers. Whether or not you’ve taken the plunge yet, they would love to hear from you. Participate in the survey and be entered into a draw to win an Amazon gift card worth $100.
2016-02-11
4,517 reads
Rajendra Gupta takes a look at the additional enhancements made to Row Level Security in SQL Server 2016 CTP 3.1 and explores the new features with examples.
2016-02-11
3,492 reads
2016-02-10
208 reads
Are you thinking about the cloud yet? Redgate is conducting some research into cloud adoption to better understand both the drivers and the blockers. Whether or not you’ve taken the plunge yet, they would love to hear from you. Participate in the survey and be entered into a draw to win an Amazon gift card worth $100.
2016-02-10
5,272 reads
By Steve Jones
Redgate is a for-profit company. We look to make money by building and selling...
I’ve uploaded the slides for my Techorama session Microsoft Fabric for Dummies and my...
If you've ever loaded a 2 GB CSV into pandas just to run a...
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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