T-SQL

SQLServerCentral Article

Using Exotic Joins in SQL Part 1

  • Article

When most developers think of joins, they think of a.SomethingID = b.SomethingID. This type of join, the equijoin, is vitally important to SQL programming; however, it only scratches the surface of the power of the SQL join. This is the first in a series of articles that will look at several different types of exotic joins in SQL. This article will focus on using the BETWEEN operator in joins when dealing with range-based data.

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2017-08-23 (first published: )

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SQLServerCentral Article

How to Search for Date and Time Values

  • Article

Because of the way date and time values are stored in SQL Server, searching for a particular date or time is not as straightforward as you might think it would be. This article describes how date/time values are stored, how the database design can simplify (or complicate) data retrieval, and how to query date/time data to get the right results every time.

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2003-01-21

36,113 reads

SQLServerCentral Article

A Normalization Primer

  • Article

For most DBAs, normalization is an understood concept, a bread and butter bit of knowledge. However, it is not at all unusual to review a database design by a development group for an OLTP (OnLine Transaction Processing) environment and find that the schema chosen is anything but properly normalized. This article by Brian Kelley will give you the core knowledge to data model.

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2003-01-13

18,716 reads

Technical Article

CSV Lists of Columns in Different Formats

  • Script

This script creates comma separated lists of columns in different formats. These lists can be copied and pasted into other T-SQL statements.  The lists are formatted as: a simple list of column names, a list with the column names as declared variables (@ + column name + data type), a list with column names as […]

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2002-12-26

211 reads

Technical Article

To find the next available ID

  • Script

There are times when you have a limited range of ids and these have to be re-used as they become available.The script lists the first missing id in a table.Note that this script works best for a table with a limited number of rows, say sub 100,000I tested this on a PIII 500MHz 256Mb RAM […]

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2002-12-09

268 reads

Technical Article

Dynamic String Compare (W/O the dynamic sql)

  • Script

Purpose: To compare two strings with a supplied operator and return true if the strings evaluate to true using the operator provided. This is useful for stored procs to use instead of dynamic sql. YAY!  Allowing for the operator and value to be passed in as parms. So that the user on the front end […]

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2002-12-07

862 reads

Technical Article

Stored Proc with optional parameters

  • Script

Sometimes people want a Stored Proc with optional parameters. A lot of times people will use a coalesce for this. The problem with optional paremeters is that the query plan will never be an exact mach for that specific query. ( You never know what paremeters are filled..... )To solve this problem look at the […]

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2002-12-06

456 reads

Technical Article

Converting Binary data to a Hex Character String

  • Script

Occassionally you might want to convert a binary number into some printable string.   This would allow you display some meaning fully numbers hex characters, instead of just some unreadable garbage.  This script takes a binary field, of basically any length, and converts it, character by character, to a character string.  The character string will contain […]

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2002-11-07

471 reads

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Question of the Day

The Large Encoded Value

I want to use the new BASE64_ENCODE() function in SQL Server 2025, but return a string that isn't large type. What is the longest varbinary string I can pass in and still get a varchar(8000) returned?

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