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Predict the outcome of the SQL statements

 Author Message bazzkar SSC-Enthusiastic Group: General Forum Members Points: 158 Visits: 72 Comments posted to this topic are about the item Predict the outcome of the SQL statements UMG Developer SSCrazy Group: General Forum Members Points: 2280 Visits: 2204 Nice question, thanks! Though I think the explanation left a little to be desired. It isn't just that the decimal type was used, it was that the decimal type was used and no precision/scale was specified, so the number got rounded down to 1.0 when it was converted.For example this results in the same thing as all of your float examples:`select Ceiling(convert(decimal(2, 1), 1.09))`Because with a scale of one specified it gets rounded to 1.1 before it goes to ceiling. Toreador SSCrazy Group: General Forum Members Points: 2412 Visits: 8061 Knew the answer but had a brain fart and clicked the wrong option, oops!UMG Developer is right about the explanation. Mike Is Here UDP Broadcaster Group: General Forum Members Points: 1450 Visits: 513 Good question but I think a better explaination is:the default of decimal without parameters is (18,0) thus making 1.09 -> 1 and then the ceiling of 1 is 1 John.Norcott Valued Member Group: General Forum Members Points: 71 Visits: 49 Thank you Old Hand. I knew the ceiling function brought you up to the next integer, but I couldn't figure out why the decimal was any different than the float on this one! You're explanation was what I was missing. For some reason I thought the default precision was 2, not 0. I'll be sure to remember that the next time I use a decimal data type. Toreador SSCrazy Group: General Forum Members Points: 2412 Visits: 8061 I hope one thing that everybody has learned from these questions is that you should never rely on default precision for anything - you will inevitably get it wrong sooner or later :-) TomThomson SSChampion Group: General Forum Members Points: 10696 Visits: 11991 Good question, but as some have already noted the explanation is a bit lacking.Also, the question was made too easy by the absence of the All 2s option as an answer choice - anyone who knows what ceiling means can eliminate all answers but the correct one with knowing anything at all about decimal or its default precision. Tom Cliff Jones SSCarpal Tunnel Group: General Forum Members Points: 4069 Visits: 3648 Tom.Thomson (11/2/2010)Good question, but as some have already noted the explanation is a bit lacking.Also, the question was made too easy by the absence of the All 2s option as an answer choice - anyone who knows what ceiling means can eliminate all answers but the correct one with knowing anything at all about decimal or its default precision.Yes, I agree. The best wrong answer was missing. SQLRNNR SSC-Insane Group: General Forum Members Points: 21071 Visits: 18259 Thanks for the question. Jason AKA CirqueDeSQLeilI have given a name to my pain...MCM SQL Server, MVPSQL RNNRPosting Performance Based Questions - Gail Shaw Koen Verbeeck SSCoach Group: General Forum Members Points: 16439 Visits: 13202 Good question, although it was more about convert than about ceiling.A link to the msdn page for convert and decimal:http://msdn.microsoft.com/en-us/library/ms187928(SQL.90).aspx (convert)http://msdn.microsoft.com/en-us/library/ms187746.aspx (decimal/numeric)The last page describes the gotcha of this question in the explanation of the scale. How to post forum questions.Need an answer? No, you need a question.What’s the deal with Excel & SSIS?Member of LinkedIn. My blog at SQLKover. MCSA SQL Server 2012 - MCSE Business Intelligence

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