As with all else, "It Depends" but I don't see why not. I am trying to calculate the time difference between the value in the row and the min value in the table. The native function CONVERT() might appear to work fine as long as your interval is less than 24 hours. Despite working with SQL since 1997, he is amazed that he keeps learning new things every single day. Imex, thank you for the quick response. I never got negative CPU time or negative elapsed time. The outermost query simply displays the calculated elapsed time and converts it to the HH:MM:DD format. You'll be amazed at how simple the code can be because of the "Direct Date Math". Ready to optimize your JavaScript with Rust? Why does the distance from light to subject affect exposure (inverse square law) while from subject to lens does not? Datediff() reports the difference in clock time where as SET STATISTICS TIME returns the CPU time and elapsed time. This part of the query, basically the same grouping query we constructed prior, also collapses start/end times using MAX to eliminate the NULL entries resulting from the innermost cross tab. It only takes a minute to sign up. I attempted to use your method in my query and it didn't seem to gel well. SELECT /* query one */ 1 ; SET @t2 = GETDATE(); SELECT DATEDIFF(millisecond,@t1,@t2) AS elapsed_ms; Guide me what to alter in above code to get elapse time in this format Hour:Minute:Second:MiliSec. Let me explain with a quick example: I run the following query: c# C# Compiler Errors C++ examples csharp DB2 Errors Delphi Errors Download Excel Excel 2016 Excel Automation excel formula excel functions excel tips excel tutorials Excel VBA Functions in Excel how to Java examples javascript Microsoft Microsoft Excel microsoft word MS Office MySQL Errors Oracle Errors Oxygene PowerPoint PowerPoint 2013 ppt . With SQL 2012, the query can actually be simplified: Spec1ID int IDENTITY(1,1) NOT NULL PRIMARY KEY CLUSTERED. Channel = ABS(CHECKSUM(NEWID()))%100+200 -- 200 <= Channel <= 299, ,[TimeStamp] = RAND(CHECKSUM(NEWID()))*(DATEDIFF(dd,'2000','2016'))+CONVERT(DATETIME,'2000') -- 2000-01-01 <= TimeStamp < 2016-01-01, ,Lambda = ABS(CHECKSUM(NEWID()))%101+750 -- 750 <= Lamda <= 850, ,[Power] = RAND(CHECKSUM(NEWID()))*201.0-100 -- -100 <= Power < 100. One thing that is a bit difficult is summing elapsed datetime values. How can I use a VPN to access a Russian website that is banned in the EU? . Elapsed time is the clock time it takes to run a piece of code. NOT EXISTS returns true if the result set IS empty.SQL Server parse and compile time: CPU time = 0 ms, elapsed time = 0 ms. He tries to share as much and spreads the SQL goodness. Now, I will purposely introduce a blocking scenario for this query: I execute this first in another query window (a new session): and then back to the original session, I execute this, and the query waits: After a few seconds, I rollback the transaction in the other query window: Back to the first query window, lets check the Messages tab: This time, the query takes close to 3.5 seconds and it has spent most of its time waiting for the resource to be released which was locked by another transaction. And it all works in all versions from 2005 and up. How I can print the execution time of each query on messages Pane? Viewing 12 posts - 1 through 11 (of 11 total), You must be logged in to reply to this topic. SQL Server (all supported versions) In SSMS, In the Menu bar: Go to 1.Query>Query options>Advanced>SET STATISTICS TIME 2.Query>Query options>Advanced>SET STATISTICS IO That will give the output looking something like this in your Messages window: SQL Server parse and compile time: CPU time = x ms, elapsed time = y ms. SQL Server Execution Times: CPU time = x ms, elapsed time = y ms. Thanks for contributing an answer to Database Administrators Stack Exchange! This is a general solution to sum elapsed datetime values and return the sum as a datetime value that is an offset from. Only takes about 4 seconds or so. It's one of the things that makes temporal calculations so easy in Excel and I don't know what type of ANSI-ONLY crack the MS Dev Team was on when they created the newer date and time datatypes. We hope that you found this bit of SQL Spackle to fill a gap. Can you explain how this works? I'll also warn you that my code also has a limit of 3.3 milliseconds less than 1 million days. This below approach work to detect mine how much time a query takes to execute but i want to show elapse time in this format . Asking for help, clarification, or responding to other answers. There are many rows recorded during that start and end time, for each row created a time stamp is created. I know I am being a big pain, but is there a way to get the date to accurately display as well? min(timestamp) - timestamp(value in row) = elapsed time for that test, CONSTRAINT [PK_Spec1] PRIMARY KEY CLUSTERED, INSERT INTO Spec1 (Channel, Timestamp, Lambda, Power). Instead we must use the record ordering to determine this. Connect and share knowledge within a single location that is structured and easy to search. SQL Server parse and compile time: CPU time = 0 ms, elapsed time = 1 ms. SQL Server parse and compile time: CPU time = 0 ms, elapsed time = 1 ms. (269 row (s) affected) SQL Server Execution Times: CPU time = 0 ms, elapsed time = 2 ms. SQL Server parse and compile time: CPU time = 0 ms, elapsed time = 1 ms. SET Statements (Transact-SQL) Data Types (Transact-SQL) How could my characters be tricked into thinking they are on Mars? RAISERROR can be used to return user-defined messages created using the sp_addmessage system stored procedure. The following example converts the results of the GETDATE function to a nvarchar data type and concatenates it with literal text to be returned by PRINT. For example: In this case, the second race for runner number 1 starts at 13:00 and ending at 02:24, while the first race for runner number 5 starts at 12:00 and ends just past midnight at 00:15. Cases where the StartTime is greater than the end time are inverted to the other portion of the 24 hour day by subtracting from the number of seconds in a day (86400). It is important to note the error number. Lets look at another possible data anomaly. Let's review a couple of different SQL Server doesn't support the SQL standard interval data type. We use the SQL Server PRINT statement to return messages to the client. Luis C.General Disclaimer:Are you seriously taking the advice and code from someone from the internet without testing it? The calculation of elapsed times in a runners race can be an interesting problem, so lets explore that today. For example the Select * from tbl1 runs for 10 mins then Select * from tbl2 runs for 15mins and so on.. similarly do for other queries. Longer strings are truncated. Longer strings are truncated. Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support. Weve included a IDENTITY column because well use it in some later examples. CGAC2022 Day 10: Help Santa sort presents! Both statements will return a boolean true/false result. Usually, we use the SQL PRINT statement to print corresponding messages or track the variable values while query progress. The varchar(max)and nvarchar(max)data types are truncated to data types that are no larger than varchar(8000)and nvarchar(4000). I also took it upon myself to make the "day" portion of the result contain leading zeros so that everything lines up real Purdy like. Counterexamples to differentiation under integral sign, revisited. The exact time will be shown in the results. Can include concatenated literal values, functions, and variables. There are a number of real-life reporting tasks in SQL that require a 'gaps and islands' analysis. Since each runner has a single start and a stop time (i.e., each runner has precisely two time marks), the SQL to calculate the elapsed time for each is quite simple. id = 1, elapsed time is 1 hour id = 2, elapsed time is 2 hours, and id = 3, elapsed time is 3 hours. Incorporating this into our query and only selecting completed races (HAVING COUNT(*) = 3) we have solved the problem of only showing completed races. Elapsed time: 261 ms. Are the S&P 500 and Dow Jones Industrial Average securities? Azure Synapse Analytics We can find the execution status from the Job Activity Monitor but we don't get the duration of execution in it. INSERT INTO @Spec1 (Channel, [Timestamp], Lambda, [Power]) VALUES(273, '2014-05-29 14:44:17.713', 800, '-64.91'); INSERT INTO @Spec1 (Channel, [Timestamp], Lambda, [Power]) VALUES(273, '2014-05-29 15:05:09.507', 800, '-59.11'); INSERT INTO @Spec1 (Channel, [Timestamp], Lambda, [Power]) VALUES(273, '2014-05-29 15:26:00.520', 800, '-54.36'); INSERT INTO @Spec1 (Channel, [Timestamp], Lambda, [Power]) VALUES(273, '2014-05-29 16:28:34.213', 800, '-57.24'); INSERT INTO @Spec1 (Channel, [Timestamp], Lambda, [Power]) VALUES(273, '2014-05-29 16:49:25.853', 800, '-59.79'); INSERT INTO @Spec1 (Channel, [Timestamp], Lambda, [Power]) VALUES(273, '2014-05-29 17:10:17.010', 800, '-59.63'); SELECT *, DATEADD(ms, DATEDIFF(ms, MIN(S.[Timestamp]) OVER(), S.[Timestamp]), 0) as Elapsed_Time, Steve (aka sgmunson) Health & NutritionRent Servers for Income (picks and shovels strategy). I am trying to calculate the elapsed time and have it as a row in the results. Your best bet is to calculate the difference in seconds, and use a function to format the result. (This is the start time of the test.) For those that are interested and why I hate what they've done to the newer date and time datatypes (namely making "Direct Date Math" impossible), the maximum number of milliseconds that the DATE functions can generally handle is the same number as an INT and that only amounts to 25:20:31:23.647 (dd:hh:mi:ss.mil). It has been a long and exciting journey since 1997, you can read here: http://sqlmaestros.com/amit-bansal/ Luis' code will work mighty fine, in most cases. Site design / logo 2022 Stack Exchange Inc; user contributions licensed under CC BY-SA. To somewhat simplify the steps to produce our results, we have abstracted the 3 solution steps into separate derived tables: The very simple table structure proposed for this problem offers a number of challenging possibilities for anomalous data to be included, but one can hope that most of these will be eliminated by a robust front end application. (SELECT *,Dur = [TimeStamp]-MIN([TimeStamp]) OVER (PARTITION BY CHANNEL) FROM dbo.Spec1), SELECT Spec1ID, Channel, [Timestamp], Lambda, [Power], ,Elapsed = RIGHT(DATEDIFF(dd,0,Dur)+1000000,6)+':'+CONVERT(CHAR(12),Dur,114). Documents Corporate solutions Conjugation Synonyms Grammar Check Help & about. So to be able to do this over a large span would be really helpful, unless there's a way to use a day counter. @starttime2, 3. (days, hours, minutes, seconds, milliseconds) elapsed. The varchar(max) and nvarchar(max) data types are truncated to data types that are no larger than varchar(8000) and nvarchar(4000). You can record the elapsed time for each execution in some sort of a logging table (along with things like input parameters if you want). three.js . Help us identify new roles for community members. Now were going to make this problem a bit more interesting by introducing some data anomalies; because lets face it, data stored in SQL tables is often not as clean as wed like it to be. Your email address will not be published. Returns a user-defined message to the client. The SQL TIME data type is meant to store a time of day, however if we are certain our elapsed times are less than 24 hours, it can also be used to store a time period. RAISERROR (Transact-SQL), More info about Internet Explorer and Microsoft Edge. Comment * document.getElementById("comment").setAttribute( "id", "ac1b6bc9d33e979904d3731dd53a95df" );document.getElementById("da608376e8").setAttribute( "id", "comment" ); Save my name, email, and website in this browser for the next time I comment. Basically, the elapsed time is the number of hours, minutes, second, and/or milliseconds it takes to run a chuck of code. Word index: 1-300, 301-600, 601-900. The ratio of CPU Time to elapsed time depends on many factors including the number of CPUs available to the query, what the query waited on and how long those waits were (partially depends on server workload), and how efficiently the query is able to take advantage of parallelism. I generally like a million rows and the following will generate just such a table for you. How I can print the execution time of each query on messages Pane? CONSTRAINT [PK_Spec1] PRIMARY KEY CLUSTERED([Spec1ID]), --===== Simulate a million rows of test data across 16 years (2000 thru 2015). This is what is. And this includes Signal Wait Time, time spent on any Wait Types like PageIOLatch_*, IO_Completion or any other wait type including locking/blocking. Can a prospective pilot be negated their certification because of too big/small hands? Making statements based on opinion; back them up with references or personal experience. This is what is shown in ElapsedTime (as HH:MM:SS), which is calculated as by adding the number of elapsed seconds to a base date (0) using DATEADD. By using the column (rn+1)/2 we have created a calculated grouping column that represents each heat of each race. For example the Select * from tbl1 runs for 10 mins then Select * from tbl2 runs for 15mins and so on.. If we're both still around for such an elapsed time, I'll buy you a beer and apologize. SQL Server is AB's first love, and his wife does not mind that. A message string can be up to 8,000 characters long if it is a non-Unicode string, and 4,000 characters long if it is a Unicode string. If a query has more CPU time than elapsed time that means that it contained a zone that executed in parallel. Login to reply, https://www.imoveisemexposicao.com.br/imobiliarias-em-guarulhos, http://www.sqlservercentral.com/articles/Best+Practices/61537, Rent Servers for Income (picks and shovels strategy), Trying to use T-SQL to calculate elapsed time. Do bracers of armor stack with magic armor enhancements and special abilities? Browse other questions tagged, Start here for a quick overview of the site, Detailed answers to any questions you might have, Discuss the workings and policies of this site, Learn more about Stack Overflow the company. Delete from table where not in another table using two columns, SET STATISTICS TIME ON elapsed time is different than actual execution time, Execution time high for Query in sp_executesql. The default value of query timeout in SSMS in 0 (which is infinite) Tools > Options in the menu would open below the window where the value can be set if needed. Applies to: RAISERROR can also be used to return messages. He is on Twitter: https://www.twitter.com/A_Bansal, Your email address will not be published. For more information, see Constants (Transact-SQL). Sql server Umbraco 8.1.1Azure w/SQL Azure DB: sql-server azure umbraco; Sql server DockerSQL Server sql-server docker docker-compose; Sql server SQL sql-server c#-4.0; Sql server LocalDB sql . For the original data that you were good enough to provide in such a nice readily consumable format, here's what the code returns. Why is Singapore currently considered to be a dictatorial regime and a multi-party democracy by different publications? Can several CRTs be wired in parallel to one oscilloscope circuit? @Mark it's ok, you're right. However, if it comes across a span of time that's just a little too big to be handled at the millisecond level, you'll get the following error. lombok . VALUES(273, '2014-05-29 14:44:17.713', 800, '-64.91'); VALUES(273, '2014-05-29 15:05:09.507', 800, '-59.11'); VALUES(273, '2014-05-29 15:26:00.520', 800, '-54.36'); VALUES(273, '2014-05-29 16:28:34.213', 800, '-57.24'); VALUES(273, '2014-05-29 16:49:25.853', 800, '-59.79'); VALUES(273, '2014-05-29 17:10:17.010', 800, '-59.63'); Example desired results (I hope the formatting works), Channel | Timestamp | Lambda | Power | Elapsed_Time, ______________________________________________________________, 273 | '2014-05-29 14:44:17.713', | 800, | '-64.91' | 0, 273 | '2014-05-29 15:05:09.507', | 800, | '-64.91' | 00:20:51, 273 | '2014-05-29 15:26:00.520', | 800, | '-64.91' | 00:41:42, 273 | '2014-05-29 16:28:34.213', | 800, | '-64.91' | 01:44:16, 273 | '2014-05-29 16:49:25.853', | 800, | '-64.91' | 02:05:08, 273 | '2014-05-29 17:10:17.010', | 800, | '-64.91' | 02:25:59, select MIN([Timestamp]) as [Timestamp] from Spec1. Rather, they are meant to "fill in the cracks.". A dedicated server is designed specifically for use as a file server, . It does, thank you very much Luis. Print the execution time on messages Pane? The best answers are voted up and rise to the top, Not the answer you're looking for? Would salt mines, lakes or flats be reasonably found in high, snowy elevations? Doing similar for seconds is only a little over 68 years and 20 days. min (timestamp) - timestamp (value in row) = elapsed time for that test where Channel = '273' Here is the. msg_str :w00t: First, let's build a few more rows of data so we can really test things out and your might be able to figure out an extra index or two if you need it. @Mark Surely, but it was just a comment, not an answer, sorry I didn't have time last night to be more thorough. Amit Bansal is always brainstorming around SQL Server. How can I fix it? 5 . A message string can be up to 8,000 characters long if it is a non-Unicode string, and 4,000 characters long if it is a Unicode string. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. And this includes Signal Wait Time, time spent on any Wait Types like PageIOLatch_*, IO_Completion or any other wait type including locking/blocking. But CONVERT() isn't a good solution for this. Or can it easily kill your server? c# C# Compiler Errors C++ examples csharp DB2 Errors Delphi Errors Download Excel Excel 2016 Excel Automation excel formula excel functions excel tips excel tutorials Excel VBA Functions in Excel how to Java examples javascript Microsoft Microsoft Excel microsoft word MS Office MySQL Errors Oracle Errors Oxygene PowerPoint PowerPoint 2013 ppt . Japanese girlfriend visiting me in Canada - questions at border control? Do you at least understand it? Regardless, we were able to handle a couple of simple anomalies, and calculate elapsed time between start/end time entries, within the SQL. Try to use datediff with a less precise datepart. Lets add a ROW_NUMBER() to our data based on the IDENTITY column within a Common Table Expression (CTE) and see if we can play around with it a bit to help us in eliminating the newly inserted values. Is a character string or Unicode string constant. Then, we can use a feature of the DATETIME datatype that MS didn't seem to understand the importance of when they made the newer datatypes and that's called "Direct Date Math". 12DruidDruidweb sql3mysqlencoding4 log. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Tabularray table when is wraped by a tcolorbox spreads inside right margin overrides page borders. The results of this query should appear exactly the same as for the first. RAISERROR has these advantages over PRINT: RAISERROR supports substituting arguments into an error message string using a mechanism modeled on the printf function of the C language standard library. Thanks. SQL Server Education (by the geeks, for the geeks). Is an expression that returns a string. Well start by adding an open ended start time for a couple of runners, without also including an associated end time. Analytics Platform System (PDW). Just wanted to warn you. I am trying to calculate the elapsed time and have it as a row in the results. Elapsed time shows 0 ms the query ran real quick! @ local_variable If you want it to be a view, remove both the WHERE and the ORDER BY. To view Transact-SQL syntax for SQL Server 2014 and earlier, see Previous versions documentation. These short articles are NOT meant to be complete solutions. EXISTS returns true if the result set IS NOT empty. Internals and Performance Tuning excites him, and also gives him sleepless nights at times, simply because he is not a genius, but quite a hard worker and does not give up. Now is when well use the IDENTITY column to help us. ( --=== Not to worry about the million rows. Now say the test ends at 2014-05-29 17:10:17.010. Of course, I don't believe in the myth of portability, anyway, so that's not a problem for me. For more information, see Expressions (Transact-SQL). Hebrews 1:3 What is the Relationship Between Jesus and The Word of His Power? RAISERROR can specify a unique error number, a severity, and a state code in addition to the text message. Runner number 5 is new, but runner number 1 already has 2 entries so perhaps this time represents the time of a second heat. So say the min value in the table is 2014-05-29 14:44:17.713. To learn more, see our tips on writing great answers. Stack Exchange network consists of 181 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. Required fields are marked *. DATEADD(ms, DATEDIFF(ms, MIN(S.[Timestamp]) OVER(), S.[Timestamp]), 0), CAST( DATEPART(DY, DATEADD(ms, DATEDIFF(ms, MIN(S.[Timestamp]) OVER(), S.[Timestamp]), 0)) - 1 AS varchar(3)) + ':', + CONVERT(varchar(12), DATEADD(ms, DATEDIFF(ms, MIN(S.[Timestamp]) OVER(), S.[Timestamp]), 0), 14). In the middle-most derived table (b), we have calculated the elapsed time. Can I get SSMS to show me the Actual query costs in the Execution plan pane? In addition, the query plans were slightly different, with SQL Server giving the edge to NOT EXISTS once again. If not that's fine! Copyright 2022 SQLServerGeeks. Suppose a race ends at a time that appears to be less than its start time, meaning that the race actually spanned the day past midnight. rev2022.12.11.43106. The code I'm getting ready to show is NOT portable to other database engines. There are a number of techniques around that work, but finding ones that scale well makes for a tougher, but interesting, challenge. Given a set of start and stop times for runners in a race, we can construct a table containing some sample data as follows. By grouping on each runners ID, we can use the MAX and MIN values in a DATEDIFF calculation to calculate how many minutes has elapsed for each runners time (ElapsedSecs). Place the code that you would like to get the execution time for in the center of the below script. Here is the over-simplified repro of query timeout done via SQL Server Management Studio (SSMS). Why do we use perturbative series if they don't converge? Both CPU time and elapsed time were = 0 ms, never a negative value. This is based on a forum question and I see many are still confused with SQL Server Query Elapsed Time that you see under Messages tab in SSMS when the session is running with SET STATISTICS TIME ON. How to find the SQL Server Running Jobs Time Elapsed status There are many situations wherein we want to know the time for which a particular or all the jobs are executing. For quick stuff it's probably good enough. Add a new light switch in line with another switch? we can use the below query to find out the same. We can no longer use MIN and MAX to distinguish the start and end times. Calculating Gaps Between Overlapping Time Intervals in SQL. SQL Server Query Cost, Memory Grant & SQLRESERVATIONS Clerk. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. It works good on its own I was hoping to wrap it in another select statement. The innermost derived table (a) segregates start from end times based on our row number, where odd row numbers represent start times and even row numbers are end times. My work as a freelance was used in a scientific paper, should I be included as an author? Then you could query that table to get totals, avgs, etc. Is it possible to use this to calculate the elapsed while joining two other tables? Community initiative by, sys.dm_db_index_physical_stats Day 1 One DMV a day. and we can see below after 10 seconds. Spec1ID Channel Timestamp Lambda Power Elapsed, ------- ------- ----------------------- ------ ------ -------------------, 1 273 2014-05-29 14:44:17.713 800.00 -64.91 000000:00:00:00:000, 2 273 2014-05-29 15:05:09.507 800.00 -59.11 000000:00:20:51:793, 3 273 2014-05-29 15:26:00.520 800.00 -54.36 000000:00:41:42:807, 4 273 2014-05-29 16:28:34.213 800.00 -57.24 000000:01:44:16:500, 5 273 2014-05-29 16:49:25.853 800.00 -59.79 000000:02:05:08:140, 6 273 2014-05-29 17:10:17.010 800.00 -59.63 000000:02:25:59:297. The datediff function resulted in an overflow. Is this an at-all realistic configuration for a DHC-2 Beaver? I found that we have tests that run anywhere from a day to 2 months. The results for this query are shown below. Your post couldn't have come in a more timely manner, the time calculation is actually apart of a bigger query which in fact returned the error you mentioned. You can easily measure the elapsed time on the server for an individual query by calling GETDATE like I have shown you. Is a variable of any valid character data type. SQL Server Execution Times: CPU time = 15 ms, elapsed time = 76 ms. SQL Server Execution Times: CPU time = 15 ms, elapsed time = 76 ms. SQL Server parse and compile time: CPU time = 0 ms, elapsed time = 0 ms. SQL Server Execution Times: CPU time = 0 ms, elapsed time = 0 ms. SQL Server Execution Times: CPU time = 0 ms, elapsed time = 117 ms. We also use interactions or multiple loops in a query with a while or for a loop. Azure SQL Database string_expr Dwain Camps, 2019-04-05 (first published: 2013-09-26), "SQL Spackle" is a collection of short articles written based on multiple requests for similar code. Database Administrators Stack Exchange is a question and answer site for database professionals who wish to improve their database skills and learn from others in the community. Share Follow edited Sep 28, 2018 at 3:11 scopchanov 7,684 10 38 66 answered Sep 18, 2018 at 20:45 M.Njoko DATEDIFF(MILLISECOND, m.[Timestamp], s.[Timestamp]), How to post a question to get the most help http://www.sqlservercentral.com/articles/Best+Practices/61537. [font="Courier New"]Msg 535, Level 16, State 0, Line 1. SQL Server Elapsed Time represents the total time the query has taken, in milliseconds, to send the output to the console. Thanks for listening once again, my valued readers. Here's the code. Of course, you can uncomment the WHERE clause if you only want 1 Channel to be returned. The SQL TIME data type is meant to store a time of day, however if we are certain our elapsed times are less than 24 hours, it can also be used to store a time period. this code allows you to show exact time of execution of a specific code segment in your sql query. The following example uses the PRINT statement to conditionally return a message. How does legislative oversight work in Switzerland when there is technically no "opposition" in parliament? DECLARE @local_variable (Transact-SQL) SQL Server Elapsed Time represents the total time the query has taken, in milliseconds, to send the output to the console. @local_variable must be char, nchar, varchar, or nvarchar, or it must be able to be implicitly converted to those data types. The number of dateparts separating two date/time instances is too large. RAISERROR can also be used to return messages. Type the database name to use for the attached SQL database file. Select * from tbl1 Go Select * from tbl2 Go Select * from tbl3 Go sql-server sql-server-2008 execution-plan Share Improve this question asked Jul 8, 2014 at 22:30 Emman Bangis Note that it would normally be best to handle each race with a different race ID; however we can still solve this problem with our current data structure using something similar to a cross tab query. Normally when we talk about how fast some code runs we are really talking about the overall elapsed time. Quick Question: Datediff() returns negative value only for procedures that have elapsed time of 0 ms. sql-server . We can also use the SQL PRINT statement to track the iteration. If you convert it to an iTVF (inline table valued function), the "273" in the code should be a variable. This SELECT statement includes one column that calculates seconds, and one that uses CONVERT () with subtraction. 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