Vinay Thakur

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Transaction isolation level

Transaction isolation level:1. Uncommitted Read (NoLock)2. Committed Read (blocking)3. Repeatable Read (phantom)4. Snapshot  (no blocking)5. Serializable (no blocking)Dirty Read:(DR)Non Repeatable Read:(NRR)Phantom:(P)Great...

2009-05-19

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Question of the Day

The Disabled Index

I run this code on SQL Server 2022. 

CREATE TABLE Drink
(
    drinkid INT NOT NULL
        CONSTRAINT DrinkPK PRIMARY KEY CLUSTERED,
    drinkname VARCHAR(20),
    rating NUMERIC(2, 1)
)
GO

INSERT INTO Drink
(
    drinkid,
    drinkname,
    rating
)
VALUES
(1, 'Margarita', 4.5),
(2, 'Mojito', 4.3),
(3, 'Old Fashioned', 4.7),
(4, 'Martini', 4.4),
(5, 'Cosmopolitan', 4.2)
GO
ALTER INDEX drinkpk ON dbo.drink DISABLE
GO
SELECT * FROM dbo.Drink
GO
What is the result?

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