Over the past couple of years, I’ve developed several tools that I’ve been using during my Performance Tuning and other related assignments. I thought to share it with the...
2022-07-22 (first published: 2022-07-11)
1,252 reads
This procedure will estimate the cardinality of all the columns of the supplied table list. If the table list is not supplied (or supplied with NULL, the default value)...
2022-07-11
27 reads
This procedure will list down all the indexes (Clustered as well Nonclustered Indexes) whose first key column having poor cardinality.
2022-07-11
27 reads
This procedure will list down all the nonclustered indexes, which includes key columns as that of the clustered index. It will also list the key columns of both –...
2022-07-11
26 reads
This procedure will generate SQL Code for Get and Put API's. This may be useful if you are developing your own data replication strategy to replicate data across multiple...
2022-07-11
44 reads
Over the past couple of years, I’ve developed several tools that I’ve been using during my Performance Tuning and other related assignments. I thought to share it with the...
2022-07-06 (first published: 2022-07-04)
102 reads
This procedure can get you the list of queries being executed frequently and for duration greater/less than a particular time. You may also find it very useful if you...
2022-07-06
50 reads
This procedure will get all the objects performing committed reads. It will fetch all the objects (Procedures, Functions, Triggers, View etc.) that doesn't uses the NOLOCK and SET ISOLATION...
2022-07-06
41 reads
This procedure will get all the stored procedures and triggers missing the use of SET NOCOUNT ON. It may be helpful in performance tuning assignments.
2022-07-06 (first published: 2022-07-04)
57 reads
A lot of my colleagues and people in my network reached out to me to train them on the SQL Server and T-SQL. They think that my style of...
2021-11-23
296 reads
By Brian Kelley
I will be leading an in-person Certified Information Systems Auditor (CISA) exam prep class...
EightKB is back again for 2026! The biggest online SQL Server internals conference is...
By HeyMo0sh
Working in DevOps long enough teaches you two universal truths: That’s exactly why I...
Hi all, I just started using VS Code to work with DB projects. I...
Comments posted to this topic are about the item Fun with JSON II
Comments posted to this topic are about the item Changing Data Types
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 t1.[key] AS row,
t2.*
FROM OPENJSON(
(
SELECT t.* FROM #test_data AS t FOR JSON PATH
)
) t1
CROSS APPLY OPENJSON(t1.value) t2; See possible answers