What happens when we drop a column on a SQL Server table? Where's my space?
You have dropped a column and wondering why you haven't recovered any space? Let's take a look.
2024-08-01 (first published: 2024-04-26)
4,453 reads
TSQL
How much Space can I expect to recover from a rebuild after dropping a column?
Check how much space you may expect to recover from a rebuild after dropping a column!
2024-07-05
1,214 reads
Identify Tables With Dropped Columns
How easily can we find tables with dropped columns that need cleanup?
2024-06-07
2,352 reads
The difference between BIN2 and Case-Sensitive collations in SQL
Here you will learn about the key differences between the binary and SQL/Windows collations. You will see that even with all sensitivity flags enabled, SQL/Windows collation cannot behave the same way as the binary collations.
2024-03-15
1,702 reads
SQL Window Functions Series: LAG() and LEAD()
Dive deep into the powerful SQL window functions, LAG() and LEAD(). Explore their intricacies, discover real-world examples, and avoid common pitfalls.
2023-12-11
8,407 reads
What Exactly Is a CTE in T-SQL? A Comprehensive Guide with 7 Examples
Learn how to use CTEs through the use of a number of examples.
2023-10-20
10,119 reads
Different ways to Convert a SQL INT Value into a String Value
I need to convert an integer to a string value, what options are available in Microsoft SQL Server with T-SQL scripts and stored procedures?
2023-09-22
How to Move a Table into a Schema in T-SQL
To move a table into a schema in T-SQL, you can use the ALTER SCHEMA statement along with the TRANSFER option. Here are the steps to do this: Assuming you have an existing schema named "NewSchema" and a table named "YourTable" that you want to move into this schema: Open SQL Server Management Studio or […]
2023-09-29 (first published: 2023-09-18)
4,830 reads
One use case for NOT using schema prefixes
I’ve long been a huge advocate for always referencing objects with a schema prefix in SQL Server.
In spite of what may be a controversial title to many of my regular blog readers, I don’t really want you to stop that practice in most of your T-SQL code, because the schema prefix is important and useful most of the time. At Stack Overflow, though, there is a very specific pattern we use where not specifying the schema is beneficial.
2023-09-13
Understanding the Metadata Function DATABASEPROPERTYEX()
Learn how to use the DatabasePropertyEX() function to query your database for settings.
2022-08-29
2,176 reads
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Question of the Day
The Tightly Linked View
I try to run this code on SQL Server 2022. All the objects exist in the database.
CREATE OR ALTER VIEW OrderShipping
AS
SELECT cl.CityNameID,
cl.CityName,
o.OrderID,
o.Customer,
o.OrderDate,
o.CustomerID,
o.cityId
FROM dbo.CityList AS cl
INNER JOIN dbo.[Order] AS o ON o.cityId = cl.CityNameID
GO
CREATE OR ALTER FUNCTION GetShipCityForOrder
(
@OrderID INT
)
RETURNS VARCHAR(50)
WITH SCHEMABINDING
AS
BEGIN
DECLARE @city VARCHAR(50);
SELECT @city = os.CityName
FROM dbo.OrderShipping AS os
WHERE os.OrderID = @OrderID;
RETURN @city;
END;
go
What is the result? See possible answers