Recently one of my friend was doing some investigation in a new/unknown database and had really hard time locating the primary key – foreign key relations. Like it’s really tough to locate these relations when not enforced at database level in terms of primary key and foreign key constraints. But generally all database developers keep […]
2011-09-14 (first published: 2007-08-15)
2,779 reads
Delete files on a fileshare leaving behind files not older than n-days.
2011-09-13 (first published: 2008-04-02)
10,052 reads
2011-09-12 (first published: 2011-09-02)
1,507 reads
2011-09-09 (first published: 2007-11-19)
8,934 reads
Script one or all roles in a database. Includes users, obect permissions and column permissions.
2011-09-08 (first published: 2008-01-08)
5,265 reads
Generate the scripts that will allow you to compare tables pass/fail.
2011-09-07 (first published: 2007-12-28)
12,587 reads
2011-09-05 (first published: 2007-01-25)
3,942 reads
2011-08-31 (first published: 2011-08-24)
2,534 reads
Lists all the tables in a database that do not contain any LOB columns(text, ntext, image, varchar (max), nvarchar (max), varbinary (max) and xml).
Useful when rebuilding indexes online.
2011-08-30 (first published: 2011-08-25)
760 reads
2011-08-24 (first published: 2011-08-12)
1,163 reads
By Steve Jones
Redgate is a for-profit company. We look to make money by building and selling...
If you've ever loaded a 2 GB CSV into pandas just to run a...
By James Serra
What problem is Fabric Ontology trying to solve? For years, most data conversations have...
Comments posted to this topic are about the item The New Software Team
Comments posted to this topic are about the item Database Mail in SQL Server...
Comments posted to this topic are about the item 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