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sql calculate reminders

I need to create a query about car service reminders. The car can have 3 type of reminders: 2- Registration, 3 - Emission Test, 4 - State Inspection

The car table has the last date the task was performed.
CarActivitiees table has all prams repeat very 2 years , remind 10 days before it is due and so on

carActivities dataStructure
id      int       primary key
activityID      int        0 - oil change, 1-oil Change; 2 - Registration; 3-Emission;4-State Inspection
repeatNumber      int       (every 2 days, or every 2 years )
repeatCycle      int       (every 2 days, or every 2 years )
remindNumber      int       (every 2 days, or every 2 years )
remindCycle      int       (every 2 days, or every 2 years )
carKey      int      the car we are dealing with

erikTsomik

ASKER

Any suggestions?

Scott Pletcher

That would be vastly easier to do if you provided an actual table definition (CREATE TABLE ...) for carActivities and car. Can't even tell the date column(s) to use from what you posted.

erikTsomik

ASKER

CREATE TABLE [dbo].[carActivities](
	[id] [int] IDENTITY(1,1) NOT NULL,
	[activityID] [int] NOT NULL,
	[repeatNumber] [int] NOT NULL,
	[repeatCycle] [int] NOT NULL,
	[remindNumber] [int] NOT NULL,
	[remindCycle] [int] NOT NULL,
	[carKey] [int] NOT NULL,
 CONSTRAINT [PK_car_activities] 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

EXEC sys.sp_addextendedproperty @name=N'MS_Description', @value=N'1-oil Change; 2 - Registration; 3-Emission;4-State Inspection' , @level0type=N'SCHEMA',@level0name=N'dbo', @level1type=N'TABLE',@level1name=N'carActivities', @level2type=N'COLUMN',@level2name=N'activityID'
GO

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Scott Pletcher

The car table has the last date the task was performed.

What is that table's structure? Is there an activity id on it as well? Or are all the dates de-normalized into one row?

erikTsomik

ASKER

here is table car Structure . The fields that I am interesting in are [regdate] ,[emissiondate], [inspectiondate], and oilChangeMilage which is the last milage when the oil chnage was done. The dates are denormalize into 1 row

CREATE TABLE [dbo].[car](
	[carkey] [int] IDENTITY(1,1) NOT NULL,
	[carnumber] [char](10) NOT NULL,
	[locationkey] [int] NULL,
	[description] [varchar](50) NULL,
	[tagnumber] [varchar](10) NULL,
	[note] [varchar](255) NULL,
	[carType] [varchar](10) NULL,
	[carActiveIn] [bit] NULL,
	[carServiceIn] [bit] NULL,
	[originstate] [varchar](2) NULL,
	[sessiontype] [varchar](10) NULL,
	[modelyear] [int] NULL,
	[make] [varchar](20) NULL,
	[model] [varchar](20) NULL,
	[vin] [varchar](50) NULL,
	[regdate] [datetime] NULL,
	
	[emissiondate] [datetime] NULL,
	
	[inspectiondate] [datetime] NULL,
	
	[carstatus] [varchar](10) NULL,
	[instructorkey] [int] NULL,
	[retired] [char](1) NULL,
	[isstatic] [char](1) NULL,
	[oilChangeMilage] [int] NULL,
 CONSTRAINT [PK_car] PRIMARY KEY NONCLUSTERED 
(
	[carkey] 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

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erikTsomik

ASKER

Any suggestions

Duy Pham

repeatNumber      int       (every 2 days, or every 2 years )
repeatCycle      int       (every 2 days, or every 2 years )
remindNumber      int       (every 2 days, or every 2 years )
remindCycle      int       (every 2 days, or every 2 years )

Please be more specific about these fields. What do they mean? Types of Units (minutes/hours/days/etc.)?

erikTsomik

ASKER

repeatnumber (1,2,3,4 and so on )is just a number repeatCycle is a unit it is measure on (days,month,weeks,years )

erikTsomik

ASKER

Are there any suggestions?

ASKER CERTIFIED SOLUTION

Scott Pletcher

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erikTsomik

ASKER

repeat Cycle is 0- miles, 1 - day,2,weeks,3 - month,4 -- Year