Scripts

Technical Article

Improving performance on joins to large tables.

In your tenure as a DBA/developer, you've probably been asked to write dozens of stored procedures similar to this:CREATE PROCEDURE ContactInfo@ContactID intASSELECT c.Name, a.Address, p.PhoneFROM Contact cLEFT JOIN ContactAddress aON c.ContactID = a.ContactIDLEFT JOIN ContactPhone pON c.ContactID = p.ContactIDWHERE c.ContactID = @ContactIDBut there is a more efficient way to write such a query.....particularly if you […]

(1)

You rated this post out of 5. Change rating

2003-06-03

1,437 reads

Technical Article

Find Duplicate Employees, Customers, Etc.

Customers, employees, etc. come and go.  They get entered multiple times in inconsistent formats in databases.This simple script finds the duplicates across multiple formats and is easily modified as needed.  It's so easy, my grandmother could do it. Oops! No offense Grandma.For very large databases, create and join two temp tables indexed on the namedatetring […]

You rated this post out of 5. Change rating

2003-05-30

237 reads

Technical Article

Show all User-Defined Datatypes for all Databases

This procedure displays all user-defined datatypes in all databases on a server.  Another example of the power of dynamic T-SQL, this procedure dynamically generates SELECT statements for the systypes tables in each database and UNIONs them together so that they display in one recordset.

You rated this post out of 5. Change rating

2003-05-30

184 reads

Technical Article

Script to determine if all chars are same in field

This script is a fix to the "Script to determine if all chars are same in field"posted by Harvard Kinkead (hneal_98) . That script doesn't handle strings with trailing spaces (e.g. set @repeat = 'bbbb ')It happens because of the nature of Len function. To bypass this limitation my script concatenates one character to tested […]

You rated this post out of 5. Change rating

2003-05-29

99 reads

Technical Article

Table Pivoting revisited

A lot of table pivoting scripts use cursors to reach the  desired results, but SQL scripting was developed to be utilized in a data set environment rather than sequential step-thru scripting.Normally, there are 3 types of Table Pivoting - 1) column explicit 2) column implicit and 3)single column.  COLUMN EXPLICIT will place the row value […]

You rated this post out of 5. Change rating

2003-05-29

448 reads

Technical Article

Find Duplicate Indexes - Episode 1 (The Early SQL Versions)

The excellent script contributed by G.R. Preethiviraj Kulasingham (Preethi) Sri Lanka (contributed 2/20/03, modified 5/22/03) identifies duplicate indexes for the database on which the script is run.  It requires User Defined Functions, a feature restricted to SQL Server 2000.This version achieves similar results without using UDFs or creating any other permanent objects. It therefore works […]

(1)

You rated this post out of 5. Change rating

2003-05-28

786 reads

Blogs

T-SQL Tuesday #202: 100 Hours

By

It’s time for T-SQL Tuesday again and this is a great prompt to start...

T-SQL Tuesday

By

T-SQL Tuesday is a monthly blog party hosted by a different community member each...

Exploring DiskANN: Part 2: PQ, SSDs, caching and beam search

By

How I used AI for this postChatGPT to generate images based on info specifically...

Read the latest Blogs

Forums

Databricks Genie Spaces for SQL Analysts: Natural Language Querying Without Leaving Your Data Platform

By mehul.bhuva@gmail.com

Comments posted to this topic are about the item Databricks Genie Spaces for SQL...

The Costs of Multiple Platforms

By Steve Jones - SSC Editor

Comments posted to this topic are about the item The Costs of Multiple Platforms

RegEx Functions II

By Steve Jones - SSC Editor

Comments posted to this topic are about the item RegEx Functions II

Visit the forum

Question of the Day

RegEx Functions II

I have this data in a table in a SQL Server 2025 database:

EmailAddressID EmailAddress
7              dylan0@ADVENTURE-WORKS.COM
8              Diane1@ADVENTURE-WORKS.COM
If I run this query, which row(s) are returned?
SELECT top 10
 *
 FROM person.EmailAddress
 WHERE REGEXP_LIKE(EmailAddress, '^d')
 AND BusinessEntityID IN (7,8)

See possible answers