Rebuild all the Indexes of a SQL Database in one go
Introduction
In my last post, I had explained what could be the best value of Fill Factor for the indexes in...
2011-06-20
5,408 reads
Vinay
What is the best value for Fill Factor in SQL Server?
Introduction
When an index is created or rebuilt, the fill-factor value determines the percentage of space on each leaf-level page to...
2011-06-13
7,419 reads
Maximum recursion possible with CTE in SQL Server 2005/2008
In my last blog about Tally Tables, we talked about the use of
recursive CTEs to generate Tally Tables. Following that,...
2011-06-04
20,245 reads
How to protect code written in Stored Procedure or User Defined Function?
Introduction
We have always
been wondering on how to protect/secure our t-sql code written in Stored
Procedures and UDF in shared hosting environment...
2011-05-31
13,179 reads
Table-Valued parameters in SQL Server 2008
Introduction
The
most awaited feature has arrived - "Table-Valued parameters in SQL Server
2008". Here, I would discuss on how to use this new...
2011-03-12
4,509 reads
Blogs
Control Flow Restartability in Azure Data Factory
I presented at SQL Saturday Pittshburgh this past weekend about populating your data warehouse...
Monday Monitor Tips: Knowing Your RPO
By Steve Jones
A customer was asking recently about the RPO for their estate, and I showed...
Webinar tomorrow: The Role of Databases in the Era of AI
By Steve Jones
I’m hosting a webinar tomorrow with Rie Merritt from Microsoft. We’ll be talking about...
Forums
Vending Machine Proposal Template
The Super Proposal Vending Machine Proposal Template is a comprehensive and customizable tool designed...
best choice for index when creating a composite key
hi everyone I am planning on adding a composite key for my tables. I...
Best Approach to cutover from Test to Live with new columns and tables added
We have a Production/Live version with up-to-date data and a Test version with older...
Question of the Day
STRING_AGG's behavior
Executing the following script (Sql Server 2022), you get the table t0 with 10 rows:
CREATE TABLE t0
( id INT PRIMARY KEY
, field1 VARCHAR(1000)
, field2 VARCHAR(MAX));
INSERT INTO t0
SELECT
gs.value
, REPLICATE ('X', 1000)
, REPLICATE ('Y', 1000)
FROM generate_series(1, 10, 1) gs;
GOWhat happens if you execute the following statements?
select STRING_AGG(field1, ';') within group (order by id) from t0;
select STRING_AGG(field2, ';') within group (order by id) from t0;