Scripts

Technical Article

Generic trigger for maintaining the Audit Log

This trigger will work even if you don't have the primary key on any table. Mechanism to configure the primary key in config table has been provided. This can be very helpful to solve the system audit requirements without much efforts.

Disclaimer : Audit Log trigger has performance overhead. It’s meant for table which is not frequently updated, deleted or inserted. Please take precaution when creating the trigger on the table having too many columns.

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2019-10-15 (first published: )

3,116 reads

Technical Article

Getting resource name from blocked process report

The Resource name is most important information in the blocked process report.
The purpose of this script is to decode this information.
The script is divided in two parts. In first one I'm using t-sql, and in second one I accomplished the same task using SQLCLR.

(5)

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2019-10-04 (first published: )

2,033 reads

Technical Article

List Extended Database properties for all databases

I am using database properties to add some useful information for each database. Tired of exploring each database from the menu in SSMS to look for specific information, I decided to make a script listing the extended properties for all my databases. I am pleased to offer this to the community 🙂

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2019-10-01 (first published: )

1,529 reads

Technical Article

WorkDay Functions

Functions to list the number of work days in period , determine if a given date is a work day, add work days to a given date.
Uses a table of holidays and a tally table.

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2019-09-24 (first published: )

3,739 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