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DaveSanders/gist:8721734

Created January 30, 2014 22:46
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  1. DaveSanders created this gist Jan 30, 2014.
    77 changes: 77 additions & 0 deletions gistfile1.txt
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    Original file line number Diff line number Diff line change
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    --- CREATE THE TABLE

    USE [Bench]
    GO

    /****** Object: Table [dbo].[users] Script Date: 1/30/2014 5:42:46 PM ******/
    SET ANSI_NULLS ON
    GO

    SET QUOTED_IDENTIFIER ON
    GO

    CREATE TABLE [dbo].[users](
    [id] [int] IDENTITY(1,1) NOT NULL,
    [first_name] [nvarchar](50) NOT NULL,
    [last_name] [nvarchar](50) NOT NULL,
    [nickname] [nvarchar](50) NULL,
    [created_at] [datetime] NOT NULL,
    [updated_at] [datetime] NOT NULL,
    CONSTRAINT [PK_users] PRIMARY KEY CLUSTERED
    (
    [id] ASC
    )WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
    ) ON [PRIMARY]

    GO


    --- INSERT A RECORD
    INSERT INTO users (first_name, last_name, nickname, created_at, updated_at)
    VALUES ('John', 'Doe', 'Johnny', getdate(), getdate())
    GO

    --- UPSERT THE RECORD

    MERGE
    users as target --Table name
    USING (
    VALUES (1, 'Joe', 'Doe', null, getdate(), getdate())
    ) as source (id, first_name, last_name, nickname, created_at, updated_at)

    ON target.id = source.id

    WHEN MATCHED THEN
    UPDATE SET
    first_name = source.first_name,
    last_name = source.last_name,
    nickname = source.nickname,
    created_at = source.created_at,
    updated_at = source.updated_at
    WHEN NOT MATCHED THEN
    INSERT (first_name, last_name, nickname, created_at, updated_at)
    VALUES (source.first_name, source.last_name, source.nickname, source.created_at, source.updated_at)
    ; -- semicolon important for merge

    --- UPSERT A NEW RECORD
    MERGE
    users as target --Table name
    USING (
    VALUES (2, 'Jane', 'Doe', null, getdate(), getdate())
    ) as source (id, first_name, last_name, nickname, created_at, updated_at)

    ON target.id = source.id

    WHEN MATCHED THEN
    UPDATE SET
    first_name = source.first_name,
    last_name = source.last_name,
    nickname = source.nickname,
    created_at = source.created_at,
    updated_at = source.updated_at
    WHEN NOT MATCHED THEN
    INSERT (first_name, last_name, nickname, created_at, updated_at)
    VALUES (source.first_name, source.last_name, source.nickname, source.created_at, source.updated_at)
    ;

    SELECT * FROM users -- should be two records