Solved

SQL Query

Posted on 2016-08-24
3
26 Views
Last Modified: 2016-08-24
Hello,
I am writing a stored procedure with a query

IF NOT EXISTS( SELECT [Date],[Time],PickUpTime
                          FROM DIY WHERE( [Date] = CONVERT(NVARCHAR(20),@Date,112)  AND  [PickUpTime] = CONVERT(NVARCHAR(16),@PickUpTime,112) AND  [Time] = CONVERT(NVARCHAR(16),@Time,112))      

does not do it correctly on the time conversion any suggestions?

Cheers
0
Comment
Question by:RIAS
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
3 Comments
 
LVL 143

Expert Comment

by:Guy Hengel [angelIII / a3]
ID: 41768489
without concrete data as it is in the table and the variables, impossible to tell for sure

you may want to (re)read this article;:
https://www.experts-exchange.com/articles/1499/DATE-and-TIME-don't-be-scared-and-do-it-right-the-first-time.html
0
 

Author Comment

by:RIAS
ID: 41768513
Any suggestions on how to check for null

example :

[REG] = @[REG]
0
 
LVL 143

Accepted Solution

by:
Guy Hengel [angelIII / a3] earned 500 total points
ID: 41768577
NULL on which side?

depending on the context, and the possible values and data type of the column/variable, I either use an AND/OR expression or a isnull expresion

AND (  ( [REG] IS NULL AND @[REG] IS NULL )
       OR ( [REG] = @[REG] )
       )

Open in new window

AND (  ISNULL( ( [REG] , 'X$X' ) = ISNULL( @[REG] , 'X$X' ) )

Open in new window

0

Featured Post

How our DevOps Teams Maximize Uptime

Our Dev teams are like yours. They’re continually cranking out code for new features/bugs fixes, testing, deploying, responding to production monitoring events and more. It’s complex. So, we thought you’d like to see what’s working for us. Read the use case whitepaper.

Question has a verified solution.

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

Suggested Solutions

If you have heard of RFC822 date formats, they can be quite a challenge in SQL Server. RFC822 is an Internet standard format for email message headers, including all dates within those headers. The RFC822 protocols are available in detail at:   ht…
How to leverage one TLS certificate to encrypt Microsoft SQL traffic and Remote Desktop Services, versus creating multiple tickets for the same server.
In an interesting question (https://www.experts-exchange.com/questions/29008360/) here at Experts Exchange, a member asked how to split a single image into multiple images. The primary usage for this is to place many photographs on a flatbed scanner…

740 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