Master the Art of SQL: Crush Duplicate Records with Ease! Top Interview Questions Solved!

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  • เผยแพร่เมื่อ 23 ส.ค. 2024
  • "Master the Art of SQL: Crush Duplicate Records with Ease! Top Interview Questions Solved!"
    CREATE TABLE [dbo].[emails](
    [id] [int] IDENTITY(1,1) NOT NULL,
    [email] [varchar](255) NOT NULL,
    [sent_date] [datetime] NOT NULL
    )
    -- Insert data:
    INSERT INTO [dbo].[emails]
    ([email]
    ,[sent_date])
    VALUES
    ('john@example.com', '2023-09-01T10:30:00'),
    ('jane@example.com', '2023-09-02T15:45:00'),
    ('john@example.com', '2023-09-03T15:45:00'),
    ('jane@example.com', '2023-09-04T15:45:00'),
    ('bob@example.com', '2023-09-05T15:45:00')
    GO
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    🔥 Key Highlights:
    Step-by-step tutorial on eliminating duplicate records in SQL Server.
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    How to Delete Duplicate Records in SQL - Most Frequently Asked Interview Questions Job Interviews
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