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SQL != SQL...

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  • L Lost User

    Very true, but some people think it just does not feel right if it is not as complicated and convoluted as possible. Browsers, CSS, JavaScript HTMl, throw them all away and build a native client where ever possible. Then you will certainly have a better UI. As for the databases, perhaps you should use a ORM as abstraction. Then you can be fairly independent of the actual database that is used. At the price (as someone already noted) that you will do everybody a favor and not do any more presentation layer stuff in the data layer.

    The language is JavaScript. that of Mordor, which I will not utter here
    This is Javascript. If you put big wheels and a racing stripe on a golf cart, it's still a fucking golf cart.
    "I don't know, extraterrestrial?" "You mean like from space?" "No, from Canada." If software development were a circus, we would all be the clowns.

    P Offline
    P Offline
    PIEBALDconsult
    wrote on last edited by
    #32

    CDP1802 wrote:

    perhaps you should use a ORM as abstraction

    Frack no! That just makes things worse! :wtf:

    1 Reply Last reply
    0
    • P PIEBALDconsult

      CDP1802 wrote:

      more triggers than an average piece of sh.t

      I think you mean "more triggers than Texas".

      L Offline
      L Offline
      Lost User
      wrote on last edited by
      #33

      I used to live there. Don't mess with Texas :-)

      The language is JavaScript. that of Mordor, which I will not utter here
      This is Javascript. If you put big wheels and a racing stripe on a golf cart, it's still a fucking golf cart.
      "I don't know, extraterrestrial?" "You mean like from space?" "No, from Canada." If software development were a circus, we would all be the clowns.

      J 1 Reply Last reply
      0
      • P PIEBALDconsult

        Sander Rossel wrote:

        When does the hurting stop?

        Generally, the hurt lessens with each paycheck. ;) I use many different database systems. I also have to deal with the various ways of wrapping table and column names in the various databases: [], "", ``, etc. And parameter prefices: @, : . But it's Caché with is lack of operator precedence that wins the prize as worst (yes, worse than Access and Excel). :mad: Anyway... now and again I work on a technique to deal with these issues. My current technique looks a bit like this:

        internal enum SQL
        {
        [System.ComponentModel.DescriptionAttribute("Get a User record by Name")]
        [PIEBALD.Attribute.SqlServerStatementAttribute
        (
        @"
        SELECT [blah] , [blah] , [blah] FROM [UserTable] WHERE [Name]=@Param0
        "
        ,
        1 // (The number of parameters)
        )]
        [PIEBALD.Attribute.OracleStatementAttribute
        (
        @"
        SELECT ""blah"" , ""blah"" , ""blah"" FROM ""UserTable"" WHERE ""Name""=:Param0
        "
        ,
        1
        )]
        [PIEBALD.Attribute.MySqlStatementAttribute
        (
        @"
        SELECT `blah` , `blah` , `blah` FROM `UserTable` WHERE `Name`=@Param0
        "
        ,
        1
        )]
        GetUserByName

        // Other members as required
        }

        This has the added benefit that it keeps all the various versions of the SQL together rather than having separate files or classes for each type of database and never knowing whether or not you are keeping them maintained properly. Then in the application, I need refer only to the enumeration members, and my framework will select the correct version of the SQL for the particular ADO.net provider in use at the moment. (Yes, I might write yet another Data Access article.) Very few applications actually need this, but it's good exercise.

        Sander RosselS Offline
        Sander RosselS Offline
        Sander Rossel
        wrote on last edited by
        #34

        PIEBALDconsult wrote:

        Very few applications actually need this, but it's good exercise.

        And fun! :) Unless, of course, you need to get things done quick... :~

        Visit my blog at Sander's bits - Writing the code you need. Or read my articles at my CodeProject profile.

        Simplicity is prerequisite for reliability. — Edsger W. Dijkstra

        Regards, Sander

        1 Reply Last reply
        0
        • M Marc Clifton

          That's why I use a SQL builder. SQL - it's not Structured, it's not just Query, and it's not a Language. How the f*** did it get that acronym? Marc

          Imperative to Functional Programming Succinctly Contributors Wanted for Higher Order Programming Project!

          Sander RosselS Offline
          Sander RosselS Offline
          Sander Rossel
          wrote on last edited by
          #35

          :thumbsup: :laugh:

          Visit my blog at Sander's bits - Writing the code you need. Or read my articles at my CodeProject profile.

          Simplicity is prerequisite for reliability. — Edsger W. Dijkstra

          Regards, Sander

          1 Reply Last reply
          0
          • P phil o

            I don't think so. At that time, extensive usage of both systems during your carreer will have caused severe brain damages, displacing the moral pain to a physical, unsustainable pain. Better stick to Excel as early as possible ;P

            I never finish anyth

            Sander RosselS Offline
            Sander RosselS Offline
            Sander Rossel
            wrote on last edited by
            #36

            phil.o wrote:

            severe brain damages

            Causing you to miss the Reply button and hit Email instead? ;p

            phil.o wrote:

            Better stick to Excel as early as possible ;-P

            Better, I started in VB! :D

            Visit my blog at Sander's bits - Writing the code you need. Or read my articles at my CodeProject profile.

            Simplicity is prerequisite for reliability. — Edsger W. Dijkstra

            Regards, Sander

            P 1 Reply Last reply
            0
            • C Corporal Agarn

              So what you are saying is T-SQL <> PL/SQL? :)

              Mongo: Mongo only pawn... in game of life.

              Sander RosselS Offline
              Sander RosselS Offline
              Sander Rossel
              wrote on last edited by
              #37

              Why do they need the T- and PL/ anyway, at least for simple queries...

              Visit my blog at Sander's bits - Writing the code you need. Or read my articles at my CodeProject profile.

              Simplicity is prerequisite for reliability. — Edsger W. Dijkstra

              Regards, Sander

              1 Reply Last reply
              0
              • Sander RosselS Sander Rossel

                phil.o wrote:

                severe brain damages

                Causing you to miss the Reply button and hit Email instead? ;p

                phil.o wrote:

                Better stick to Excel as early as possible ;-P

                Better, I started in VB! :D

                Visit my blog at Sander's bits - Writing the code you need. Or read my articles at my CodeProject profile.

                Simplicity is prerequisite for reliability. — Edsger W. Dijkstra

                Regards, Sander

                P Offline
                P Offline
                phil o
                wrote on last edited by
                #38

                Sander Rossel wrote:

                Causing you to miss the Reply button and hit Email instead? ;-P

                I wondered why I had to reply twice ^^ Now I know.

                Sander Rossel wrote:

                Better, I started in VB! :-D

                Beware! VB is extremely dangerous. VB destroys ozone layer. VB causes cancer and other funny diseases.

                I never finish anyth

                1 Reply Last reply
                0
                • P PIEBALDconsult

                  Jörgen Andersson wrote:

                  Oracle doesn't have

                  A GUID type. :sigh: In some databases a one-byte integer is signed; in others it's unsigned. :((

                  J Offline
                  J Offline
                  Jorgen Andersson
                  wrote on last edited by
                  #39

                  PIEBALDconsult wrote:

                  A GUID type

                  Syntactic sugar. Use myguid RAW(16) default SYS_GUID() Or rather, don't use them at all. The only serious place where GUIDs have the edge over sequences is on distributed systems.

                  Wrong is evil and must be defeated. - Jeff Ello

                  P 1 Reply Last reply
                  0
                  • L Lost User

                    Yes, and most things where CRUD does not work are the direct road to hell. I have seen many failed 'dynamic' SQL thingies and every time the 'creators' finally noticed that they could not swim when they were in the middle of the ocean. I'm patching up another interesting creation right now. Each table in the database has more triggers than an average piece of sh.t . Not just 'normal' triggers, if there is such a thing. Those triggers contain real application logic and also try to do everything at once, triggering even more triggers. The whole avalanche is stopped by setting special columns in the data rows. Now, I need to change a value in a primary key of one row, which usually means deleting and then inserting the row with its new key. If I do that, the wrong triggers will start triggering and everything goes to hell (GOTO is very bad). Our geniuses did an update on the data row with the new key and then the (hopefully) right triggers will take over. The problem is that I really use an ORM and updating on a new primary key value will not cause an error, but also update nothing. There hopefully is a special place in hell reserved for those people.

                    The language is JavaScript. that of Mordor, which I will not utter here
                    This is Javascript. If you put big wheels and a racing stripe on a golf cart, it's still a fucking golf cart.
                    "I don't know, extraterrestrial?" "You mean like from space?" "No, from Canada." If software development were a circus, we would all be the clowns.

                    J Offline
                    J Offline
                    Jorgen Andersson
                    wrote on last edited by
                    #40

                    Anyone using triggers for anything else than logging, or with any recursion whatsoever, should get publically flogged. Just a personal opinion.

                    Wrong is evil and must be defeated. - Jeff Ello

                    L 1 Reply Last reply
                    0
                    • L Lost User

                      I used to live there. Don't mess with Texas :-)

                      The language is JavaScript. that of Mordor, which I will not utter here
                      This is Javascript. If you put big wheels and a racing stripe on a golf cart, it's still a fucking golf cart.
                      "I don't know, extraterrestrial?" "You mean like from space?" "No, from Canada." If software development were a circus, we would all be the clowns.

                      J Offline
                      J Offline
                      Jorgen Andersson
                      wrote on last edited by
                      #41

                      Saw a t-shirt once: "Don't mess with Texas, it's not nice to pick on retards" A very brave fellow I might add.

                      Wrong is evil and must be defeated. - Jeff Ello

                      1 Reply Last reply
                      0
                      • P PIEBALDconsult

                        Sander Rossel wrote:

                        When does the hurting stop?

                        Generally, the hurt lessens with each paycheck. ;) I use many different database systems. I also have to deal with the various ways of wrapping table and column names in the various databases: [], "", ``, etc. And parameter prefices: @, : . But it's Caché with is lack of operator precedence that wins the prize as worst (yes, worse than Access and Excel). :mad: Anyway... now and again I work on a technique to deal with these issues. My current technique looks a bit like this:

                        internal enum SQL
                        {
                        [System.ComponentModel.DescriptionAttribute("Get a User record by Name")]
                        [PIEBALD.Attribute.SqlServerStatementAttribute
                        (
                        @"
                        SELECT [blah] , [blah] , [blah] FROM [UserTable] WHERE [Name]=@Param0
                        "
                        ,
                        1 // (The number of parameters)
                        )]
                        [PIEBALD.Attribute.OracleStatementAttribute
                        (
                        @"
                        SELECT ""blah"" , ""blah"" , ""blah"" FROM ""UserTable"" WHERE ""Name""=:Param0
                        "
                        ,
                        1
                        )]
                        [PIEBALD.Attribute.MySqlStatementAttribute
                        (
                        @"
                        SELECT `blah` , `blah` , `blah` FROM `UserTable` WHERE `Name`=@Param0
                        "
                        ,
                        1
                        )]
                        GetUserByName

                        // Other members as required
                        }

                        This has the added benefit that it keeps all the various versions of the SQL together rather than having separate files or classes for each type of database and never knowing whether or not you are keeping them maintained properly. Then in the application, I need refer only to the enumeration members, and my framework will select the correct version of the SQL for the particular ADO.net provider in use at the moment. (Yes, I might write yet another Data Access article.) Very few applications actually need this, but it's good exercise.

                        J Offline
                        J Offline
                        Jorgen Andersson
                        wrote on last edited by
                        #42

                        All three work with the ANSI/ISO standard which is "". MySQL have to be set in ANSI mode though. Parameter prefices is a real pain though, especially the ansi standard ? which is positional only. X|

                        Wrong is evil and must be defeated. - Jeff Ello

                        1 Reply Last reply
                        0
                        • P PIEBALDconsult

                          Sander Rossel wrote:

                          When does the hurting stop?

                          Generally, the hurt lessens with each paycheck. ;) I use many different database systems. I also have to deal with the various ways of wrapping table and column names in the various databases: [], "", ``, etc. And parameter prefices: @, : . But it's Caché with is lack of operator precedence that wins the prize as worst (yes, worse than Access and Excel). :mad: Anyway... now and again I work on a technique to deal with these issues. My current technique looks a bit like this:

                          internal enum SQL
                          {
                          [System.ComponentModel.DescriptionAttribute("Get a User record by Name")]
                          [PIEBALD.Attribute.SqlServerStatementAttribute
                          (
                          @"
                          SELECT [blah] , [blah] , [blah] FROM [UserTable] WHERE [Name]=@Param0
                          "
                          ,
                          1 // (The number of parameters)
                          )]
                          [PIEBALD.Attribute.OracleStatementAttribute
                          (
                          @"
                          SELECT ""blah"" , ""blah"" , ""blah"" FROM ""UserTable"" WHERE ""Name""=:Param0
                          "
                          ,
                          1
                          )]
                          [PIEBALD.Attribute.MySqlStatementAttribute
                          (
                          @"
                          SELECT `blah` , `blah` , `blah` FROM `UserTable` WHERE `Name`=@Param0
                          "
                          ,
                          1
                          )]
                          GetUserByName

                          // Other members as required
                          }

                          This has the added benefit that it keeps all the various versions of the SQL together rather than having separate files or classes for each type of database and never knowing whether or not you are keeping them maintained properly. Then in the application, I need refer only to the enumeration members, and my framework will select the correct version of the SQL for the particular ADO.net provider in use at the moment. (Yes, I might write yet another Data Access article.) Very few applications actually need this, but it's good exercise.

                          K Offline
                          K Offline
                          kmoorevs
                          wrote on last edited by
                          #43

                          PIEBALDconsult wrote:

                          wrapping table and column names

                          He/She who uses spaces in table/field names should be publicly flogged! X| Even in this day and age, one of the items on my TODO list is reverse engineering a report a client sent to create a data pull from their 'new' Access 97 based inventory system and it's chock full of spaces in table and field names. :wtf: Whenever possible, I avoid unnecessary wrapping...but that's just me. :)

                          "Go forth into the source" - Neal Morse

                          P 1 Reply Last reply
                          0
                          • J Jorgen Andersson

                            Anyone using triggers for anything else than logging, or with any recursion whatsoever, should get publically flogged. Just a personal opinion.

                            Wrong is evil and must be defeated. - Jeff Ello

                            L Offline
                            L Offline
                            Lost User
                            wrote on last edited by
                            #44

                            Same here. I built a 'don't use this for anything else than this one purpose' update method and it finally seems to work - except that now something else is not updated correctly. Turned out to be the same thing our heroes pulled off on another table. And of course more extra hours for finding this. Now it's very late, I still have a one and a half hour trip home, will not get much to eat tonight unless I pick up some greasy junk along the way and would I love to strangle that idiot that invented the technique of updating primary keys and enforcing this nonsense with countless triggers.

                            The language is JavaScript. that of Mordor, which I will not utter here
                            This is Javascript. If you put big wheels and a racing stripe on a golf cart, it's still a fucking golf cart.
                            "I don't know, extraterrestrial?" "You mean like from space?" "No, from Canada." If software development were a circus, we would all be the clowns.

                            J 1 Reply Last reply
                            0
                            • L Lost User

                              Same here. I built a 'don't use this for anything else than this one purpose' update method and it finally seems to work - except that now something else is not updated correctly. Turned out to be the same thing our heroes pulled off on another table. And of course more extra hours for finding this. Now it's very late, I still have a one and a half hour trip home, will not get much to eat tonight unless I pick up some greasy junk along the way and would I love to strangle that idiot that invented the technique of updating primary keys and enforcing this nonsense with countless triggers.

                              The language is JavaScript. that of Mordor, which I will not utter here
                              This is Javascript. If you put big wheels and a racing stripe on a golf cart, it's still a fucking golf cart.
                              "I don't know, extraterrestrial?" "You mean like from space?" "No, from Canada." If software development were a circus, we would all be the clowns.

                              J Offline
                              J Offline
                              Jorgen Andersson
                              wrote on last edited by
                              #45

                              If there's anything worse than nested triggers, it has to be people fiddling with primary keys. You have my sympathies, and I wish your company would pay you for a decent restaurant. My old job actually had that as a rule, if you were forced to work past eight o'clock the dinner was paid for. Within reason.

                              Wrong is evil and must be defeated. - Jeff Ello

                              L 1 Reply Last reply
                              0
                              • J Jorgen Andersson

                                If there's anything worse than nested triggers, it has to be people fiddling with primary keys. You have my sympathies, and I wish your company would pay you for a decent restaurant. My old job actually had that as a rule, if you were forced to work past eight o'clock the dinner was paid for. Within reason.

                                Wrong is evil and must be defeated. - Jeff Ello

                                L Offline
                                L Offline
                                Lost User
                                wrote on last edited by
                                #46

                                Jörgen Andersson wrote:

                                pay you for a decent restaurant.

                                Are you joking? They will cry how long it took me to find and correct it. They actually tried to tell us that we do and always have produced excellent quality - as a company guideline. If they say so, then it must be true and it must somehow be our fault when something does not go according to plan.

                                The language is JavaScript. that of Mordor, which I will not utter here
                                This is Javascript. If you put big wheels and a racing stripe on a golf cart, it's still a fucking golf cart.
                                "I don't know, extraterrestrial?" "You mean like from space?" "No, from Canada." If software development were a circus, we would all be the clowns.

                                1 Reply Last reply
                                0
                                • Sander RosselS Sander Rossel

                                  So I've been doing Oracle development, coming from SQL Server. Simple string concatenation, which is + everywhere, is || in Oracle. A little research and || seems to be the ANSI standard, which makes sense as 2 || 'A' is now unambiguous '2A' (and not a conversion error). But now I want to write a simple SELECT statement which would work in both Oracle and SQL Server. Oracle doesn't support + and SQL Server doesn't support ||, however both support CONCAT. Seems too easy for something that's uneasy already, and indeed it is... SELECT CONCAT('A', 'B') FROM TABLE works in Oracle and SQL Server. SELECT CONCAT('A', 'B', 'C') FROM TABLE works only in SQL Server... Seems like the only thing that works in both databases is CONCAT('A', CONCAT('B', 'C')). And that seems like the only reasonable solution is to write two different queries, one for Oracle and one for SQL Server because it's just too friggin difficult to implement a standard FRIGGIN STRING CONCATENATION!!! X| When does the hurting stop? :((

                                  Visit my blog at Sander's bits - Writing the code you need. Or read my articles at my CodeProject profile.

                                  Simplicity is prerequisite for reliability. — Edsger W. Dijkstra

                                  Regards, Sander

                                  R Offline
                                  R Offline
                                  Roger Wright
                                  wrote on last edited by
                                  #47

                                  Sander Rossel wrote:

                                  When does the hurting stop?

                                  When you stop expecting Microsoft to conform to any standard other than what feels good to them this week, the pain will subside. Not stop, but subside some... :sigh:

                                  Will Rogers never met me.

                                  1 Reply Last reply
                                  0
                                  • J Jorgen Andersson

                                    PIEBALDconsult wrote:

                                    A GUID type

                                    Syntactic sugar. Use myguid RAW(16) default SYS_GUID() Or rather, don't use them at all. The only serious place where GUIDs have the edge over sequences is on distributed systems.

                                    Wrong is evil and must be defeated. - Jeff Ello

                                    P Offline
                                    P Offline
                                    PIEBALDconsult
                                    wrote on last edited by
                                    #48

                                    Jörgen Andersson wrote:

                                    is on distributed systems

                                    They're all distributed systems. :-D

                                    1 Reply Last reply
                                    0
                                    • K kmoorevs

                                      PIEBALDconsult wrote:

                                      wrapping table and column names

                                      He/She who uses spaces in table/field names should be publicly flogged! X| Even in this day and age, one of the items on my TODO list is reverse engineering a report a client sent to create a data pull from their 'new' Access 97 based inventory system and it's chock full of spaces in table and field names. :wtf: Whenever possible, I avoid unnecessary wrapping...but that's just me. :)

                                      "Go forth into the source" - Neal Morse

                                      P Offline
                                      P Offline
                                      PIEBALDconsult
                                      wrote on last edited by
                                      #49

                                      I'm doing a lot of ETL/import, I see it all -- SPACEs, ASTERISKs, SLASHes, DOTs, reserved words, etc. I prefer to strike back first and wrap everything.

                                      1 Reply Last reply
                                      0
                                      • Sander RosselS Sander Rossel

                                        So I've been doing Oracle development, coming from SQL Server. Simple string concatenation, which is + everywhere, is || in Oracle. A little research and || seems to be the ANSI standard, which makes sense as 2 || 'A' is now unambiguous '2A' (and not a conversion error). But now I want to write a simple SELECT statement which would work in both Oracle and SQL Server. Oracle doesn't support + and SQL Server doesn't support ||, however both support CONCAT. Seems too easy for something that's uneasy already, and indeed it is... SELECT CONCAT('A', 'B') FROM TABLE works in Oracle and SQL Server. SELECT CONCAT('A', 'B', 'C') FROM TABLE works only in SQL Server... Seems like the only thing that works in both databases is CONCAT('A', CONCAT('B', 'C')). And that seems like the only reasonable solution is to write two different queries, one for Oracle and one for SQL Server because it's just too friggin difficult to implement a standard FRIGGIN STRING CONCATENATION!!! X| When does the hurting stop? :((

                                        Visit my blog at Sander's bits - Writing the code you need. Or read my articles at my CodeProject profile.

                                        Simplicity is prerequisite for reliability. — Edsger W. Dijkstra

                                        Regards, Sander

                                        B Offline
                                        B Offline
                                        Brittle1618
                                        wrote on last edited by
                                        #50

                                        Sander Rossel wrote:

                                        When does the hurting stop?

                                        When you start using NoSQL, No SQL at all :laugh:

                                        1 Reply Last reply
                                        0
                                        • J Jorgen Andersson

                                          Sander Rossel wrote:

                                          When does the hurting stop

                                          When you stop doing presentation logics in the database. I also agree with Phil, why do you need to support more than one database?

                                          Wrong is evil and must be defeated. - Jeff Ello

                                          W Offline
                                          W Offline
                                          William Clardy
                                          wrote on last edited by
                                          #51

                                          Jörgen Andersson wrote:

                                          why do you need to support more than one database?

                                          Because one features premium pay and the other features ubiquitous jobs?

                                          1 Reply Last reply
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