Solved

sql calculate reminders

Posted on 2016-09-02
11
69 Views
Last Modified: 2016-09-09
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
0
Comment
Question by:erikTsomik
  • 7
  • 3
11 Comments
 
LVL 19

Author Comment

by:erikTsomik
ID: 41782288
Any suggestions?
0
 
LVL 69

Expert Comment

by:ScottPletcher
ID: 41782310
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.
0
 
LVL 19

Author Comment

by:erikTsomik
ID: 41782313
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

Open in new window

0
 
LVL 69

Expert Comment

by:ScottPletcher
ID: 41782322
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?
0
 
LVL 19

Author Comment

by:erikTsomik
ID: 41782324
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

Open in new window

0
[Webinar] Disaster Recovery and Cloud Management

Learn from Unigma and CloudBerry industry veterans which providers are best for certain use cases and how to lower cloud costs, how to grow your Managed Services practice in IaaS clouds, and how to utilize public cloud for Disaster Recovery

 
LVL 19

Author Comment

by:erikTsomik
ID: 41782964
Any suggestions
0
 
LVL 10

Expert Comment

by:Duy Pham
ID: 41785150
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.)?
0
 
LVL 19

Author Comment

by:erikTsomik
ID: 41785337
repeatnumber (1,2,3,4 and so on )is just a number  repeatCycle is a unit it is measure on  (days,month,weeks,years )
0
 
LVL 19

Author Comment

by:erikTsomik
ID: 41786674
Are there any suggestions?
0
 
LVL 69

Accepted Solution

by:
ScottPletcher earned 500 total points
ID: 41786714
Still not enough details for a full answer:

repeatCycle is a unit it is measure on  (days,month,weeks,years )

But cycle is an int -- does 1 stand for day, or 100 or whatever?  No way for us to know what cycle code you assigned for what time period.

But something like below should be close and give you an idea on how to join:

SELECT c.*, ca.*
FROM dbo.car c
CROSS JOIN (
    SELECT DATEADD(DAY, DATEDIFF(DAY, 0, GETDATE()), 0) AS todays_date
) AS assign_alias_names
INNER JOIN dbo.carActivities ca ON
    ((ca.activityID = 2 AND todays_date = DATEADD(DAY, ca.remindNumber, DATEADD(YEAR, +2, c.regdate))) OR
     (ca.activityID = 3 AND todays_date = DATEADD(DAY, ca.remindNumber, DATEADD(YEAR, +2, c.emissiondate))) OR
     (ca.activityID = 4 AND todays_date = DATEADD(DAY, ca.remindNumber, DATEADD(YEAR, +2, c.inspectiondate))))
0
 
LVL 19

Author Comment

by:erikTsomik
ID: 41786795
repeat Cycle is 0- miles, 1 - day,2,weeks,3 - month,4 -- Year
0

Featured Post

Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Read about achieving the basic levels of HRIS security in the workplace.
Never store passwords in plain text or just their hash: it seems a no-brainier, but there are still plenty of people doing that. I present the why and how on this subject, offering my own real life solution that you can implement right away, bringin…
Using examples as well as descriptions, and references to Books Online, show the documentation available for date manipulation functions and by using a select few of these functions, show how date based data can be manipulated with these functions.
This videos aims to give the viewer a basic demonstration of how a user can query current session information by using the SYS_CONTEXT function

910 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

16 Experts available now in Live!

Get 1:1 Help Now