Skip to content
  • Categories
  • Recent
  • Tags
  • Popular
  • World
  • Users
  • Groups
Skins
  • Light
  • Cerulean
  • Cosmo
  • Flatly
  • Journal
  • Litera
  • Lumen
  • Lux
  • Materia
  • Minty
  • Morph
  • Pulse
  • Sandstone
  • Simplex
  • Sketchy
  • Spacelab
  • United
  • Yeti
  • Zephyr
  • Dark
  • Cyborg
  • Darkly
  • Quartz
  • Slate
  • Solar
  • Superhero
  • Vapor

  • Default (No Skin)
  • No Skin
Collapse
Code Project
  1. Home
  2. The Lounge
  3. Today's Qlikview "You gotta be f*ckin kidding me" moment

Today's Qlikview "You gotta be f*ckin kidding me" moment

Scheduled Pinned Locked Moved The Lounge
22 Posts 11 Posters 0 Views 1 Watching
  • Oldest to Newest
  • Newest to Oldest
  • Most Votes
Reply
  • Reply as topic
Log in to reply
This topic has been deleted. Only users with topic management privileges can see it.
  • R Offline
    R Offline
    realJSOP
    wrote on last edited by
    #1

    Dates. A date is represented as either a floating point value or "datetime". So far so good. I set the date to 0, and the resulting datetime representation was null. Hmmmm. I set it to 1, and the datetime was 31 Dec 1899. Well, okay... I guess. The real adventure starts when you try to find the absolute max datetime that can be represented. There is no documentation that I could find that says what this value is, and I think I know why. That value is 313740917827896, or 31 Dec 4294967295. If you add 1 to the numeric value, the represented datetime becomes 01 Jan 0000. If you continue adding, you can go all the way to 313740918558381, which gives you a datetime of 31 Dec 1999. If you add 1 to that value, it finally overflows into something that evidently cannot be interpreted as a date. If you really want a laugh, I changed that absolute max value to a negative number, and I got a datetime of 4294967292 Jan 1900. Yes, that first number is the DAY. Curiously, it's almost the same value as the max possible year (before it wraps around). I don't know whether to laugh or cry...

    ".45 ACP - because shooting twice is just silly" - JSOP, 2010
    -----
    You can never have too much ammo - unless you're swimming, or on fire. - JSOP, 2010
    -----
    When you pry the gun from my cold dead hands, be careful - the barrel will be very hot. - JSOP, 2013

    OriginalGriffO Sander RosselS B M J 5 Replies Last reply
    0
    • R realJSOP

      Dates. A date is represented as either a floating point value or "datetime". So far so good. I set the date to 0, and the resulting datetime representation was null. Hmmmm. I set it to 1, and the datetime was 31 Dec 1899. Well, okay... I guess. The real adventure starts when you try to find the absolute max datetime that can be represented. There is no documentation that I could find that says what this value is, and I think I know why. That value is 313740917827896, or 31 Dec 4294967295. If you add 1 to the numeric value, the represented datetime becomes 01 Jan 0000. If you continue adding, you can go all the way to 313740918558381, which gives you a datetime of 31 Dec 1999. If you add 1 to that value, it finally overflows into something that evidently cannot be interpreted as a date. If you really want a laugh, I changed that absolute max value to a negative number, and I got a datetime of 4294967292 Jan 1900. Yes, that first number is the DAY. Curiously, it's almost the same value as the max possible year (before it wraps around). I don't know whether to laugh or cry...

      ".45 ACP - because shooting twice is just silly" - JSOP, 2010
      -----
      You can never have too much ammo - unless you're swimming, or on fire. - JSOP, 2010
      -----
      When you pry the gun from my cold dead hands, be careful - the barrel will be very hot. - JSOP, 2013

      OriginalGriffO Offline
      OriginalGriffO Offline
      OriginalGriff
      wrote on last edited by
      #2

      January 1900 was clearly a very long month. Where were you on 42884th Jan 1900?

      Bad command or file name. Bad, bad command! Sit! Stay! Staaaay... AntiTwitter: @DalekDave is now a follower!

      "I have no idea what I did, but I'm taking full credit for it." - ThisOldTony
      "Common sense is so rare these days, it should be classified as a super power" - Random T-shirt

      1 Reply Last reply
      0
      • R realJSOP

        Dates. A date is represented as either a floating point value or "datetime". So far so good. I set the date to 0, and the resulting datetime representation was null. Hmmmm. I set it to 1, and the datetime was 31 Dec 1899. Well, okay... I guess. The real adventure starts when you try to find the absolute max datetime that can be represented. There is no documentation that I could find that says what this value is, and I think I know why. That value is 313740917827896, or 31 Dec 4294967295. If you add 1 to the numeric value, the represented datetime becomes 01 Jan 0000. If you continue adding, you can go all the way to 313740918558381, which gives you a datetime of 31 Dec 1999. If you add 1 to that value, it finally overflows into something that evidently cannot be interpreted as a date. If you really want a laugh, I changed that absolute max value to a negative number, and I got a datetime of 4294967292 Jan 1900. Yes, that first number is the DAY. Curiously, it's almost the same value as the max possible year (before it wraps around). I don't know whether to laugh or cry...

        ".45 ACP - because shooting twice is just silly" - JSOP, 2010
        -----
        You can never have too much ammo - unless you're swimming, or on fire. - JSOP, 2010
        -----
        When you pry the gun from my cold dead hands, be careful - the barrel will be very hot. - JSOP, 2013

        Sander RosselS Offline
        Sander RosselS Offline
        Sander Rossel
        wrote on last edited by
        #3

        So I was texting this cute girl when she asked me "What's your perfect date?" I said "dd-MM-yyyy, anything else is just confusing." She never texted back :(

        Best, Sander arrgh.js - Bringing LINQ to JavaScript SQL Server for C# Developers Succinctly Object-Oriented Programming in C# Succinctly

        D OriginalGriffO 2 Replies Last reply
        0
        • Sander RosselS Sander Rossel

          So I was texting this cute girl when she asked me "What's your perfect date?" I said "dd-MM-yyyy, anything else is just confusing." She never texted back :(

          Best, Sander arrgh.js - Bringing LINQ to JavaScript SQL Server for C# Developers Succinctly Object-Oriented Programming in C# Succinctly

          D Offline
          D Offline
          Deflinek
          wrote on last edited by
          #4

          She probably was used to MM/dd/yyyy and didn't want to confuse you even more :)

          -- "My software never has bugs. It just develops random features."

          Sander RosselS 1 Reply Last reply
          0
          • D Deflinek

            She probably was used to MM/dd/yyyy and didn't want to confuse you even more :)

            -- "My software never has bugs. It just develops random features."

            Sander RosselS Offline
            Sander RosselS Offline
            Sander Rossel
            wrote on last edited by
            #5

            Seems like I've dodged a bullet then! :laugh:

            Best, Sander arrgh.js - Bringing LINQ to JavaScript SQL Server for C# Developers Succinctly Object-Oriented Programming in C# Succinctly

            L 1 Reply Last reply
            0
            • Sander RosselS Sander Rossel

              So I was texting this cute girl when she asked me "What's your perfect date?" I said "dd-MM-yyyy, anything else is just confusing." She never texted back :(

              Best, Sander arrgh.js - Bringing LINQ to JavaScript SQL Server for C# Developers Succinctly Object-Oriented Programming in C# Succinctly

              OriginalGriffO Offline
              OriginalGriffO Offline
              OriginalGriff
              wrote on last edited by
              #6

              "Can I compare thee to a summer's day?" Because July the 17th was quite nice, and ... where are you going?

              Bad command or file name. Bad, bad command! Sit! Stay! Staaaay... AntiTwitter: @DalekDave is now a follower!

              "I have no idea what I did, but I'm taking full credit for it." - ThisOldTony
              "Common sense is so rare these days, it should be classified as a super power" - Random T-shirt

              1 Reply Last reply
              0
              • Sander RosselS Sander Rossel

                Seems like I've dodged a bullet then! :laugh:

                Best, Sander arrgh.js - Bringing LINQ to JavaScript SQL Server for C# Developers Succinctly Object-Oriented Programming in C# Succinctly

                L Offline
                L Offline
                Lost User
                wrote on last edited by
                #7

                All of you are wrong, yyyy-mm-dd is objectively the best format.

                Sander RosselS R 2 Replies Last reply
                0
                • L Lost User

                  All of you are wrong, yyyy-mm-dd is objectively the best format.

                  Sander RosselS Offline
                  Sander RosselS Offline
                  Sander Rossel
                  wrote on last edited by
                  #8

                  No it's not, why start with a number that only changes once in a millenium? The least you could do is stick that somewhere in the middle! Start with the day, however, and you'll probably never have to read past the first two digits :)

                  Best, Sander arrgh.js - Bringing LINQ to JavaScript SQL Server for C# Developers Succinctly Object-Oriented Programming in C# Succinctly

                  W J R 3 Replies Last reply
                  0
                  • R realJSOP

                    Dates. A date is represented as either a floating point value or "datetime". So far so good. I set the date to 0, and the resulting datetime representation was null. Hmmmm. I set it to 1, and the datetime was 31 Dec 1899. Well, okay... I guess. The real adventure starts when you try to find the absolute max datetime that can be represented. There is no documentation that I could find that says what this value is, and I think I know why. That value is 313740917827896, or 31 Dec 4294967295. If you add 1 to the numeric value, the represented datetime becomes 01 Jan 0000. If you continue adding, you can go all the way to 313740918558381, which gives you a datetime of 31 Dec 1999. If you add 1 to that value, it finally overflows into something that evidently cannot be interpreted as a date. If you really want a laugh, I changed that absolute max value to a negative number, and I got a datetime of 4294967292 Jan 1900. Yes, that first number is the DAY. Curiously, it's almost the same value as the max possible year (before it wraps around). I don't know whether to laugh or cry...

                    ".45 ACP - because shooting twice is just silly" - JSOP, 2010
                    -----
                    You can never have too much ammo - unless you're swimming, or on fire. - JSOP, 2010
                    -----
                    When you pry the gun from my cold dead hands, be careful - the barrel will be very hot. - JSOP, 2013

                    B Offline
                    B Offline
                    Brisingr Aerowing
                    wrote on last edited by
                    #9

                    :wtf: Kill it! Kill it with fire!

                    What do you get when you cross a joke with a rhetorical question? The metaphorical solid rear-end expulsions have impacted the metaphorical motorized bladed rotating air movement mechanism. Do questions with multiple question marks annoy you???

                    1 Reply Last reply
                    0
                    • R realJSOP

                      Dates. A date is represented as either a floating point value or "datetime". So far so good. I set the date to 0, and the resulting datetime representation was null. Hmmmm. I set it to 1, and the datetime was 31 Dec 1899. Well, okay... I guess. The real adventure starts when you try to find the absolute max datetime that can be represented. There is no documentation that I could find that says what this value is, and I think I know why. That value is 313740917827896, or 31 Dec 4294967295. If you add 1 to the numeric value, the represented datetime becomes 01 Jan 0000. If you continue adding, you can go all the way to 313740918558381, which gives you a datetime of 31 Dec 1999. If you add 1 to that value, it finally overflows into something that evidently cannot be interpreted as a date. If you really want a laugh, I changed that absolute max value to a negative number, and I got a datetime of 4294967292 Jan 1900. Yes, that first number is the DAY. Curiously, it's almost the same value as the max possible year (before it wraps around). I don't know whether to laugh or cry...

                      ".45 ACP - because shooting twice is just silly" - JSOP, 2010
                      -----
                      You can never have too much ammo - unless you're swimming, or on fire. - JSOP, 2010
                      -----
                      When you pry the gun from my cold dead hands, be careful - the barrel will be very hot. - JSOP, 2013

                      M Offline
                      M Offline
                      Mycroft Holmes
                      wrote on last edited by
                      #10

                      I can understand exploring the min value boundaries but extending your research to those lengths is just cruel. I obviously dodged a bullet when I delegated that particular load if crap to another developer.

                      Never underestimate the power of human stupidity RAH

                      1 Reply Last reply
                      0
                      • L Lost User

                        All of you are wrong, yyyy-mm-dd is objectively the best format.

                        R Offline
                        R Offline
                        Rick York
                        wrote on last edited by
                        #11

                        It also conforms to ISO 8601.

                        1 Reply Last reply
                        0
                        • Sander RosselS Sander Rossel

                          No it's not, why start with a number that only changes once in a millenium? The least you could do is stick that somewhere in the middle! Start with the day, however, and you'll probably never have to read past the first two digits :)

                          Best, Sander arrgh.js - Bringing LINQ to JavaScript SQL Server for C# Developers Succinctly Object-Oriented Programming in C# Succinctly

                          W Offline
                          W Offline
                          Wendelius
                          wrote on last edited by
                          #12

                          I don't understand why you're so in love with numbers. Nothing beats localized text so better to use "dddd d MMMM yy". It's just so readable and drops the unnecessary century. We're all at the same millennia here, right? :)

                          Sander RosselS 1 Reply Last reply
                          0
                          • Sander RosselS Sander Rossel

                            No it's not, why start with a number that only changes once in a millenium? The least you could do is stick that somewhere in the middle! Start with the day, however, and you'll probably never have to read past the first two digits :)

                            Best, Sander arrgh.js - Bringing LINQ to JavaScript SQL Server for C# Developers Succinctly Object-Oriented Programming in C# Succinctly

                            J Offline
                            J Offline
                            Jorgen Andersson
                            wrote on last edited by
                            #13

                            Sander Rossel wrote:

                            No it's not, why start with a number that only changes once in a millenium?

                            Because its sortable as text. That's basically the whole point with making it THE standard. ISO 8601 - Wikipedia[^]

                            Wrong is evil and must be defeated. - Jeff Ello

                            Sander RosselS 1 Reply Last reply
                            0
                            • R realJSOP

                              Dates. A date is represented as either a floating point value or "datetime". So far so good. I set the date to 0, and the resulting datetime representation was null. Hmmmm. I set it to 1, and the datetime was 31 Dec 1899. Well, okay... I guess. The real adventure starts when you try to find the absolute max datetime that can be represented. There is no documentation that I could find that says what this value is, and I think I know why. That value is 313740917827896, or 31 Dec 4294967295. If you add 1 to the numeric value, the represented datetime becomes 01 Jan 0000. If you continue adding, you can go all the way to 313740918558381, which gives you a datetime of 31 Dec 1999. If you add 1 to that value, it finally overflows into something that evidently cannot be interpreted as a date. If you really want a laugh, I changed that absolute max value to a negative number, and I got a datetime of 4294967292 Jan 1900. Yes, that first number is the DAY. Curiously, it's almost the same value as the max possible year (before it wraps around). I don't know whether to laugh or cry...

                              ".45 ACP - because shooting twice is just silly" - JSOP, 2010
                              -----
                              You can never have too much ammo - unless you're swimming, or on fire. - JSOP, 2010
                              -----
                              When you pry the gun from my cold dead hands, be careful - the barrel will be very hot. - JSOP, 2013

                              J Offline
                              J Offline
                              Jorgen Andersson
                              wrote on last edited by
                              #14

                              Obviously lacks a few checks. But you can make life a bit easier if you have a look at DateTime.FromOADate Method (Double) (System)[^] and DateTime.ToOADate Method (System)[^]

                              Wrong is evil and must be defeated. - Jeff Ello

                              R 1 Reply Last reply
                              0
                              • J Jorgen Andersson

                                Sander Rossel wrote:

                                No it's not, why start with a number that only changes once in a millenium?

                                Because its sortable as text. That's basically the whole point with making it THE standard. ISO 8601 - Wikipedia[^]

                                Wrong is evil and must be defeated. - Jeff Ello

                                Sander RosselS Offline
                                Sander RosselS Offline
                                Sander Rossel
                                wrote on last edited by
                                #15

                                Real men sort on substrings! ;p And the really very manly men sort Wendelius' format :~

                                Best, Sander arrgh.js - Bringing LINQ to JavaScript SQL Server for C# Developers Succinctly Object-Oriented Programming in C# Succinctly

                                1 Reply Last reply
                                0
                                • W Wendelius

                                  I don't understand why you're so in love with numbers. Nothing beats localized text so better to use "dddd d MMMM yy". It's just so readable and drops the unnecessary century. We're all at the same millennia here, right? :)

                                  Sander RosselS Offline
                                  Sander RosselS Offline
                                  Sander Rossel
                                  wrote on last edited by
                                  #16

                                  Great idea, that is now the default format in all my applications :D

                                  Best, Sander arrgh.js - Bringing LINQ to JavaScript SQL Server for C# Developers Succinctly Object-Oriented Programming in C# Succinctly

                                  1 Reply Last reply
                                  0
                                  • Sander RosselS Sander Rossel

                                    No it's not, why start with a number that only changes once in a millenium? The least you could do is stick that somewhere in the middle! Start with the day, however, and you'll probably never have to read past the first two digits :)

                                    Best, Sander arrgh.js - Bringing LINQ to JavaScript SQL Server for C# Developers Succinctly Object-Oriented Programming in C# Succinctly

                                    R Offline
                                    R Offline
                                    realJSOP
                                    wrote on last edited by
                                    #17

                                    That format is the most sortable.

                                    ".45 ACP - because shooting twice is just silly" - JSOP, 2010
                                    -----
                                    You can never have too much ammo - unless you're swimming, or on fire. - JSOP, 2010
                                    -----
                                    When you pry the gun from my cold dead hands, be careful - the barrel will be very hot. - JSOP, 2013

                                    1 Reply Last reply
                                    0
                                    • J Jorgen Andersson

                                      Obviously lacks a few checks. But you can make life a bit easier if you have a look at DateTime.FromOADate Method (Double) (System)[^] and DateTime.ToOADate Method (System)[^]

                                      Wrong is evil and must be defeated. - Jeff Ello

                                      R Offline
                                      R Offline
                                      realJSOP
                                      wrote on last edited by
                                      #18

                                      I'm not sure how something in C# is applicable to the sh|t stain we all know as Qlikview.

                                      ".45 ACP - because shooting twice is just silly" - JSOP, 2010
                                      -----
                                      You can never have too much ammo - unless you're swimming, or on fire. - JSOP, 2010
                                      -----
                                      When you pry the gun from my cold dead hands, be careful - the barrel will be very hot. - JSOP, 2013

                                      J 1 Reply Last reply
                                      0
                                      • R realJSOP

                                        I'm not sure how something in C# is applicable to the sh|t stain we all know as Qlikview.

                                        ".45 ACP - because shooting twice is just silly" - JSOP, 2010
                                        -----
                                        You can never have too much ammo - unless you're swimming, or on fire. - JSOP, 2010
                                        -----
                                        When you pry the gun from my cold dead hands, be careful - the barrel will be very hot. - JSOP, 2013

                                        J Offline
                                        J Offline
                                        Jorgen Andersson
                                        wrote on last edited by
                                        #19

                                        Just me assuming you were using it via an interface

                                        Wrong is evil and must be defeated. - Jeff Ello

                                        R 1 Reply Last reply
                                        0
                                        • J Jorgen Andersson

                                          Just me assuming you were using it via an interface

                                          Wrong is evil and must be defeated. - Jeff Ello

                                          R Offline
                                          R Offline
                                          realJSOP
                                          wrote on last edited by
                                          #20

                                          Qlikview is a stand-alone app with no support for plug-ins, or even real coding talent, although it requires one to be able to figure out workarounds for their arbitrary restrictions, numerous limitations, and bugs that they prefer to call "nuances". As a programmer, Qlikview's "programming" features are an affront to my developer sensibilities. If anyone on the planet was in danger of having physical harm inflicted on them from a carefully aimed shot, it's the sub-humans that invented Qlikview.

                                          ".45 ACP - because shooting twice is just silly" - JSOP, 2010
                                          -----
                                          You can never have too much ammo - unless you're swimming, or on fire. - JSOP, 2010
                                          -----
                                          When you pry the gun from my cold dead hands, be careful - the barrel will be very hot. - JSOP, 2013

                                          M J 2 Replies Last reply
                                          0
                                          Reply
                                          • Reply as topic
                                          Log in to reply
                                          • Oldest to Newest
                                          • Newest to Oldest
                                          • Most Votes


                                          • Login

                                          • Don't have an account? Register

                                          • Login or register to search.
                                          • First post
                                            Last post
                                          0
                                          • Categories
                                          • Recent
                                          • Tags
                                          • Popular
                                          • World
                                          • Users
                                          • Groups