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)
4,764 reads
SQLServer
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
1,234 reads
Identify Tables With Dropped Columns
How easily can we find tables with dropped columns that need cleanup?
2024-06-07
2,510 reads
AutomatedLab - A Quickstart for Deploying SQL Server Labs on Windows
Learn how you can use AutomatedLab to quickly create new environments.
2023-08-04
2,839 reads
Database Sequence Objects with dbatools
This article delves into five new dbatools command that work with sequence objects.
2023-05-31
1,505 reads
Import Multiple Packages to SSIS server
We cannot import multiple packages on the SSIS server. So, loading 100 packageS from file location will be a tedious task for a DBA. We can solve this issue by making use of the DTUTIL utility. The DTUTIL utility can also import one package at a time, but we can write the batch file using the […]
2021-09-27 (first published: 2021-09-22)
1,890 reads
PolyBase scale-out group in Azure for free
create a sql server polybase scale out group in azure for free
2021-06-23 (first published: 2021-04-12)
2,022 reads
Fixing "Login failed for user" error in SQL Server
In this article, I am going to explain fixing a problem related login failure error with SQL Server. The Problem One of the common error in the SQL Server error log is "Login failed for user 'DomainName\ServerName$'. Reason: Could not find a login matching the name provided. [CLIENT: <local machine>]". Even though it says that […]
2025-12-31 (first published: 2020-11-24)
54,439 reads
Block user objects from being created in a master database
Introduction The Master database. Just in case that you are not familiar with this database, the Master database is used in SQL Server to store all the system information, instance-level settings, logon information, database file locations, etc. SQL Server can't run without access to a fully functional master database. It's highly recommended not to use […]
2020-11-10
4,060 reads
Finding the Free Space Difference Between Availability Groups Replicas
When was last time you have checked your Always On Availability Groups' replicas storage distribution?
2020-11-09
2,154 reads
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Forums
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Question of the Day
Fun with JSON I
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