SQL Server string manipulation using T-SQL leaves lots to be desired. Many postings and complaints about T-SQL deal with strings, but there are ways to work with it. Author Eli Leiba brings us a way to split out portions of a string that contains tokens with a user defined function. Read on to see how this is accomplished and the code used to perform the splitting.
2004-12-27
12,154 reads
User defined functions were added in SQL Server 7 and enhanced in SQL Server 2000, but they are still a relatively little used feature. Here's a look at a unique way that Leo Peysakhovich solved a problem using a UDF.
2004-09-07
11,125 reads
Dinesh is back with another article on user defined functions, giving some more great examples. If you haven't read the first one, definitely go back and read it first.
2003-07-14
7,075 reads
UDF's are useful if somewhat tricky. Dinesh uses a common scenario where you have a self referencing table (the common example is an employees table where each employee has a managerid that links to another employee in the same table) to illustrate how a UDF can make querying easier, how to use it as the basis of a computed column, and how to index that column.
2003-06-18
12,285 reads
Alxander Chigrik presents some useful User Defined Functions you can add to your SQL Server.
2001-12-19
8,644 reads
Alexander Chigrik presents a few UDFs he has developed for getting meta data about your database objects.
2001-10-17
4,108 reads
Many programming languages have supported User Defined Functions for years, but they are new to SQL Server 2000. In this article we will look at some of the ways functions can be used within SQL Server 2000.
2004-10-22 (first published: 2001-05-02)
21,137 reads
By Vinay Thakur
Continuing from Day 4 where we learned Encoder, Decoder, and Attention Mechanism, today we...
By Vinay Thakur
Continuing from Day 3 where we covered LLM models open/closed and their parameters, Today...
By Steve Jones
One of the nice things about Flyway Desktop is that it helps you manage...
I'm fairly certain I know the answer to this from digging into it yesterday,...
Hi Team, I am trying to refresh the Azure Synapse Dedicated pool from production...
hi everyone I am not sure how to write the query that will produce...
I have some data in a table:
CREATE TABLE #test_data
(
id INT PRIMARY KEY,
name VARCHAR(100),
birth_date DATE
);
-- Step 2: Insert rows
INSERT INTO #test_data
VALUES
(1, 'Olivia', '2025-01-05'),
(2, 'Emma', '2025-03-02'),
(3, 'Liam', '2025-11-15'),
(4, 'Noah', '2025-12-22');
If I run this query, how many rows are returned?
SELECT *
FROM OPENJSON(
(
SELECT t.* FROM #test_data AS t FOR JSON PATH
)
) t; See possible answers