2008-09-03
3,666 reads
Indexing
Index Metadata and Statistics Update Date for SQL Server
Statistics update date is stored as metadata on the SQL instance, but after a great deal of research against the system tables and DMVs I realized that this information is not readily exposed to the DBA via any other method than the STATS_DATE() function or the SQL Server Management Studio graphical user interface (GUI).
2008-08-12
3,021 reads
The Ultimate Missing Index Finder
Reports stats on what the query optimizer records in the DMVs as missing indexes and what it says the cost savings will be if they were present. Can limit by table / schema name patterns.
2013-01-07 (first published: 2008-08-01)
21,246 reads
The Ultimate Prospective-Index Column(s) Selectivity Analyzer
Gets single-column and cumulative-column selectivity stats and @Top largest dupe sets for each cumulative column stepping for a set of one or more columns for a table.
2009-05-03 (first published: 2008-08-01)
2,128 reads
The Ultimate Duplicate Index Finder
Searches database-wide for multiple indexes in the same table which has the same column as the first seek key. Optionally limits to LIKE wildcard patterns of table and schema names.
2008-10-17 (first published: 2008-08-01)
3,315 reads
The Ultimate Index Usage Reporter
Reports index stats, index size+rows, member seek + include columns as two comma separated output columns, and index usage stats for one or more tables and/or schemas.
2012-12-27 (first published: 2008-08-01)
7,970 reads
The Ultimate Index Lister (Non-Pivoted)
Lists details for all indexes on one or more tables / schemas, including row count and size. The non-pivot version also gives data type and other details for the columns.
2013-10-02 (first published: 2008-08-01)
3,710 reads
The Ultimate Index Lister (Pivoted)
Lists details for all indexes on one or more tables / schemas, including row count and size. This version outputs the member seek + include columns as two comma separated output columns.
2009-01-19 (first published: 2008-08-01)
2,490 reads
Rebuilding Stats: Twice or Not At All
Are you rebuilding statistics twice on your tables? Longtime expert, Andy Warren, shows why you might be asking more work of your SQL Server than is required.
2008-07-29
9,161 reads
Disabling Indexes
Expert SQL Server trainer Andy Warren brings us a new article on a lesser used feature in SQL server 2005: the ability to disable an index.
2008-07-22
11,125 reads
Blogs
AI: Blog a Day – Day 4: Transformers – Encoder, Decoder, and Attention
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Continuing from Day 3 where we covered LLM models open/closed and their parameters, Today...
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One of the nice things about Flyway Desktop is that it helps you manage...
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Microsoft Fabric (not to be confused with the more general term “fabric” in DevOps)...
Forums
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I'm fairly certain I know the answer to this from digging into it yesterday,...
Azure Synapse database refresh
Hi Team, I am trying to refresh the Azure Synapse Dedicated pool from production...
how to write this query?
hi everyone I am not sure how to write the query that will produce...
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