When a table is modified by changing the order of fields or changing field type or adjusting field sizes etc, some of the dependent views (or views on views on views :)) may become invalid as they store some metadata in order to run more efficiently. These views would need to be refreshed with new […]
2007-04-20 (first published: 2007-03-20)
2,080 reads
A quick little standalone script that tells you what process is blocking and what processes the blocking processing actually blocking.When running this script in QA, change your output to "Results in Text" ( CTRL-T ). Utilizes the blocking info in sp_who2 combined with dbcc inputbuffer and a little cursor to wrap it all up. Formatting […]
2007-04-19 (first published: 2007-03-20)
7,467 reads
The script details about the workaround for using Dynamic SQL inside T-SQL user defined functions. Basically, T-SQL doesn't allow developers to perform/write any actions/statments which would affect the database's state. As a key note factor for any migration process from oracle to sql server developers need to do a work around on using execute immediate(for […]
2007-04-18 (first published: 2007-03-27)
4,089 reads
spWhatsRunning does just that. It tells you exactly what is executing on your server. By combining the output of the sp_who and dbcc inputbuffer, this script will tell you exactly whats being executed. DBCC INPUTBUFFER will tell you the same thing, but by the time you get the spid, the offending process may be gone. […]
2007-04-17 (first published: 2007-03-20)
2,761 reads
2007-04-16 (first published: 2007-03-20)
14,120 reads
Muestra la ubicacion del Backup mas reciente. Backup completo y backup diferencil de todas las BBDD.Get the location of the recent Backup. Complete Backup and backup diferencil of all the BBDD.
2007-04-13 (first published: 2007-04-02)
784 reads
UDF - SQL 2000 and higherThis function returns an 18 row table of date ranges around a given date.The ranges are: Day, Week (Sunday to Saturday), Month, Quarter, Half Year, Year.For each range there are 3 values: Previous, Same and NextExample of usage:Joined to an orders table:Select r.period, count(o.order_id)from orders oinner join dbo.ufn_date_ranges('2003-04-01') ron o.order_date […]
2007-04-12 (first published: 2003-07-03)
500 reads
In response to Sam Stange's "An old and new way to query Hierarchical data", this script uses the new CTE feature of SQL Server 2005 to display the hierarchical data all at once. I have added a check to prevent infinite loop in case there is a loop in the data (actually, there is one […]
2007-04-11 (first published: 2007-03-28)
1,440 reads
To build function based index in SQL Server, you can use indexed view (materialized view) or using a computed column. In this script, I give an exmaple of how to use the computed column to implement a function based index on a table to search through a free formated telephone number column. The basic step […]
2007-04-10 (first published: 2007-03-29)
9,211 reads
When AUTOSTATS is used in a database, we can sometimes use these automatically generated statistics to find columns where SQL Server has built statistics on non-indexed columns that may benefit from an index. This script finds these columns and displays the selectivity of them. This script can be useful in troubleshooting poorly performing databases by […]
2007-04-09 (first published: 2007-02-20)
1,756 reads
By James Serra
I’m honored to be hosting T-SQL Tuesday — edition #192. For those who may...
By Vinay Thakur
Continuing from Day 2 , we learned introduction on Generative AI and Agentic AI,...
Quite the title, so let me set the stage first. You have an Azure...
Comments posted to this topic are about the item Rollback vs. Roll Forward
Comments posted to this topic are about the item Foreign Keys - Foes or...
Comments posted to this topic are about the item 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