Remove duplicate records?

  • HI,

    How to find duplicate records as below query

    Select A.SS_ID,A.SD_ID, A.SD_Info, A.SD_User, A.SD_Date

    from dbo.BC_ShiftSummaryInfo A

    Join dbo.BC_ShiftSummary B

    On A.SS_ID = B.SS_ID

    Where B.ShiftStartDate > '2012-12-14 00:00:00.000'

    and B.ShiftStartDate <'2012-12-15 00:00:00.00' order by B.ShiftStartDate

    --8400 Total Record count in dbo.BC_ShiftSummaryInfo as per date range

    -- Actual Records is 5023 should come above date range.

    Table structure

    SET ANSI_NULLS ON

    GO

    SET QUOTED_IDENTIFIER ON

    GO

    CREATE TABLE [dbo].[BC_ShiftSummaryInfo](

    [SS_ID] [uniqueidentifier] NOT NULL,

    [SD_ID] [uniqueidentifier] NOT NULL,

    [SD_Info] [ntext] NOT NULL,

    [SD_User] [nvarchar](400) NULL,

    [SD_Date] [datetime] NULL

    ) ON [PRIMARY] TEXTIMAGE_ON [PRIMARY]

    GO

    ALTER TABLE [dbo].[BC_ShiftSummaryInfo] WITH NOCHECK ADD CONSTRAINT [FK_BC_ShiftSummaryInfo_BC_Display] FOREIGN KEY([SD_ID])

    REFERENCES [dbo].[BC_Display] ([SD_ID])

    GO

    ALTER TABLE [dbo].[BC_ShiftSummaryInfo] CHECK CONSTRAINT [FK_BC_ShiftSummaryInfo_BC_Display]

    GO

    I want remove duplicate records 3377 in BC_ShiftSummaryInfo table. Please provide the script how to delete duplicate records

    thanks

    ananda

  • I think you have the DDL you posted mixed up with what you are after. The FK references BC_Display. Can you please post the table definition for both BC_ShiftSummary and BC_ShiftSummaryInfo, and only the FKs related between those two tables?

    Also, if you were to find multiple rows in BC_ShiftSummaryInfo for the same SS_ID which row should be kept? i.e. what is the criteria? newest per SD_Date?

    There are no special teachers of virtue, because virtue is taught by the whole community.
    --Plato

  • sorry for late reply..

    export data into BC_ShiftSummaryInfo table some duplicate data was inserted during that time period.. I want delete 3377 duplicate records on BC_ShiftSummaryInfo

    Table structure - [BC_ShiftSummaryInfo]

    CREATE TABLE [dbo].[BC_ShiftSummaryInfo](

    [SS_ID] [uniqueidentifier] NOT NULL,

    [SD_ID] [uniqueidentifier] NOT NULL,

    [SD_Info] [ntext] NOT NULL,

    [SD_User] [nvarchar](400) NULL,

    [SD_Date] [datetime] NULL

    ) ON [PRIMARY] TEXTIMAGE_ON [PRIMARY]

    GO

    ALTER TABLE [dbo].[BC_ShiftSummaryInfo] WITH NOCHECK ADD CONSTRAINT [FK_BC_ShiftSummaryInfo_BC_Display] FOREIGN KEY([SD_ID])

    REFERENCES [dbo].[BC_Display] ([SD_ID])

    GO

    ALTER TABLE [dbo].[BC_ShiftSummaryInfo] CHECK CONSTRAINT [FK_BC_ShiftSummaryInfo_BC_Display]

    GO

    Table structure - [BC_ShiftSummary]

    CREATE TABLE [dbo].[BC_ShiftSummary](

    [SS_ID] [uniqueidentifier] ROWGUIDCOL NOT NULL,

    [SC_Name] [nvarchar](64) NOT NULL,

    [SC_OwnerID] [varchar](50) NOT NULL,

    [CreatedBy] [nvarchar](255) NOT NULL,

    [CreateDate] [datetime] NOT NULL,

    [Status] [tinyint] NOT NULL,

    [SubmitDate] [datetime] NULL,

    [SubmittedBy] [nvarchar](255) NULL,

    [ApproveDate] [datetime] NULL,

    [ApprovedBy] [nvarchar](255) NULL,

    [Eq_No] [int] NOT NULL,

    [ShiftID] [nvarchar](16) NOT NULL,

    [ShiftName] [nvarchar](16) NOT NULL,

    [ShiftStartDate] [datetime] NOT NULL,

    [ShiftEndDate] [datetime] NOT NULL,

    [MinTillLocked] [int] NULL,

    [Archive_File_name] [nvarchar](55) NULL,

    [TakeOverDate] [datetime] NULL,

    [TakeOverBy] [nvarchar](255) NULL,

    [TakeOverRole] [nvarchar](255) NULL,

    CONSTRAINT [PK_BC_ShiftSummary] PRIMARY KEY CLUSTERED

    (

    [SS_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

    SET ANSI_PADDING OFF

    GO

    ALTER TABLE [dbo].[BC_ShiftSummary] ADD CONSTRAINT [DF_BC_ShiftSummary_SS_ID] DEFAULT (newid()) FOR [SS_ID]

    GO

    ALTER TABLE [dbo].[BC_ShiftSummary] ADD CONSTRAINT [DF_BC_ShiftSummary_CreateDate] DEFAULT (getdate()) FOR [CreateDate]

    GO

    ALTER TABLE [dbo].[BC_ShiftSummary] ADD DEFAULT (NULL) FOR [Archive_File_name]

    GO

    Table structure - [BC_Display]

    CREATE TABLE [dbo].[BC_Display](

    [SD_ID] [uniqueidentifier] ROWGUIDCOL NOT NULL,

    [LKP_Type] [varchar](50) NOT NULL,

    [Name] [nvarchar](64) NOT NULL,

    [OwnerID] [varchar](50) NOT NULL,

    [Caption] [nvarchar](255) NULL,

    [Description] [nvarchar](255) NULL,

    [Height] [int] NOT NULL,

    [LKP_Unit] [varchar](50) NOT NULL,

    [Scrolling] [bit] NOT NULL,

    [ntext] NOT NULL,

    [DDAO_ID] [uniqueidentifier] NULL,

    [RO] [tinyint] NOT NULL,

    [DDAO_Name] [nvarchar](64) NULL,

    [DDAO_DataSetView] [nvarchar](64) NULL,

    [DDAO_TableOperation] [nvarchar](64) NULL,

    [Query_ConnApp] [nvarchar](64) NULL,

    [Query_ConnSource] [nvarchar](64) NULL,

    [Query_ConnKey] [nvarchar](64) NULL,

    [Query] [ntext] NULL,

    [GOTO_WKSP] [varchar](256) NULL,

    [GOTO_WKBK] [varchar](256) NULL,

    [GOTO_WKSH] [varchar](256) NULL,

    [GOTO_URL] [ntext] NULL,

    [TagGroup_Type] [varchar](50) NULL,

    CONSTRAINT [SN_DISPLAY_PK] PRIMARY KEY CLUSTERED

    (

    [SD_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] TEXTIMAGE_ON [PRIMARY]

    GO

    SET ANSI_PADDING OFF

    GO

    ALTER TABLE [dbo].[BC_Display] WITH NOCHECK ADD CONSTRAINT [FK_BC_Display_BC_Owner] FOREIGN KEY([OwnerID])

    REFERENCES [dbo].[BC_Owner] ([OwnerID])

    GO

    ALTER TABLE [dbo].[BC_Display] CHECK CONSTRAINT [FK_BC_Display_BC_Owner]

    GO

    ALTER TABLE [dbo].[BC_Display] ADD CONSTRAINT [DF_BC_Display_SD_ID] DEFAULT (newid()) FOR [SD_ID]

    GO

  • Duplicate post :alien: please post reply here http://www.sqlservercentral.com/Forums/Topic1401550-392-1.aspx

    -------Bhuvnesh----------
    I work only to learn Sql Server...though my company pays me for getting their stuff done;-)

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