Weekly Item Count in SQL Server

Question

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Trying to get a count of how long an item is open on a weekly basis. So if it opens and closes I want to know how long it was open. If close date is null I want to use GetDate()

SQL

CREATE TABLE [dbo].[TestDates](
    [ItemId] [int] IDENTITY(1,1) NOT NULL,
    [AssignmentName] [nvarchar](max) NULL,
    [AssignedDate] [date] NULL,
    [DueDate] [date] NULL,
    [PId] [int] NULL,
    [FullName] [nvarchar](max) NULL,
    [OpenDate] [date] NULL,
    [CloseDate] [date] NULL,
    [Status] [nvarchar](max) NULL,
 CONSTRAINT [PK_TestDates] PRIMARY KEY CLUSTERED
(
    [ItemId] 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

SQL

CREATE TABLE [dbo].[TestDates](
    [ItemId] [int] IDENTITY(1,1) NOT NULL,
    [AssignmentName] [nvarchar](max) NULL,
    [AssignedDate] [date] NULL,
    [DueDate] [date] NULL,
    [PId] [int] NULL,
    [FullName] [nvarchar](max) NULL,
    [OpenDate] [date] NULL,
    [CloseDate] [date] NULL,
    [Status] [nvarchar](max) NULL,
 CONSTRAINT [PK_TestDates] PRIMARY KEY CLUSTERED
(
    [ItemId] 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

Posted 13-Mar-13 12:46pm

mail4bartley

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Sergey Alexandrovich Kryukov 13-Mar-13 18:53pm

Sorry, this is not a question.
—SA

1 solution

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Mike Meinz · Answer 1 · 2013-03-13T13:23:00

You did not specify the unit of measure for the count. I used MINUTE in the example below. Using DATEDIFF, you can also specify other units of measure. See DATEDIFF (Transact-SQL)[^]

SELECT ItemId,ISNULL(AssignmentName,"") As AssignmentName,DATEDIFF(MINUTE,ISNULL(opendate,GETDATE()),ISNULL(closedate,GETDATE())) AS Minutes_Elapsed FROM testdates;

Using constants to test, the result was 90.

SELECT DATEDIFF(minute,ISNULL('2012-01-01 08:00:00',GETDATE()),ISNULL('2012-01-01 09:30:00',GETDATE())) As Minutes_Elapsed