Index Internal Structure in SQL Server: Stairway to SQL Server Indexes Level 10
A detailed look the B-Tree structure – Leaf level and non-leaf level.
2012-01-20
17,111 reads
A detailed look the B-Tree structure – Leaf level and non-leaf level.
2012-01-20
17,111 reads
Determining how, and if, SQL Server is using your indexes.
2011-10-05
15,807 reads
Indexes that ensure data integrity in addition to locating rows.
2011-09-14
13,417 reads
A filtered index eliminates unusable entries from the index, producing an index that is as beneficial as, but much smaller than, an unfiltered index. If a certain subset of a table's data is frequently requested, a filtered index can also be a covering index; resulting in a considerable reduction in IO.
2011-08-24
15,263 reads
A nonclustered index entry consists of search key columns, included columns, and the bookmark. The bookmark value will be either a RID or the clustered index's key, depending upon whether the table is a heap or a clustered index. Choosing the best clustered index for a table requires that you follow three guidelines to ensure that the index key will make a good bookmark.
2011-08-03
15,795 reads
By Brian Kelley
If you want to learn better, pause more in your learning to intentionally review.
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If you’ve used Azure SQL Managed Instance General Purpose, you know the drill: to...
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I have this code in SQL Server 2022:
CREATE SCHEMA etl;
GO
CREATE TABLE etl.product
(
ProductID INT,
ProductName VARCHAR(100)
);
GO
INSERT etl.product
VALUES
(2, 'Bee AI Wearable');
GO
CREATE TABLE dbo.product
(
ProductID INT,
ProductName VARCHAR(100)
);
GO
INSERT dbo.product
VALUES
(1, 'Spiral College-ruled Notebook');
GO
CREATE OR ALTER PROCEDURE etl.GettheProduct
AS
BEGIN
exec('SELECT ProductName FROM product;')
END;
GO
When I execute this code as a user whose default schema is dbo and has rights to the tables and proc, what is returned? See possible answers