Please sit down and imagine...
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update - take the schema as-is and put it on a newer version of SQL upgrade - make changes to the schema using the new features of the new SQL
Skipper: We'll fix it. Alex: Fix it? How you gonna fix this? Skipper: Grit, spit and a whole lotta duct tape.
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Ah OK, my mistake. Thought you were talking about SQL itself, not the database. I suspect 99% of databases live as long as the product they serve without significant rewrites.
pt1401 wrote:
I suspect 99% of databases live as long as the product they serve without significant rewrites.
You are probably right. So I should add - the product has been updated 6 times (only major counted) since then... The original version was a desktop application in C and now it is a full web based including support for handheld devices...
Skipper: We'll fix it. Alex: Fix it? How you gonna fix this? Skipper: Grit, spit and a whole lotta duct tape.
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... a database, that was designed 25 years ago (SQL 6.5) and since then only upgraded, but never updated... Do you feel me?!
Skipper: We'll fix it. Alex: Fix it? How you gonna fix this? Skipper: Grit, spit and a whole lotta duct tape.
Nope. Database-theory has not changed. You state it was 'designed 25 years ago'; the word designed implies that it has been normalized. Perhaps you prefer entities without any upfront design? (As in, evolving by Agile)
Bastard Programmer from Hell :suss: If you can't read my code, try converting it here[^][](X-Clacks-Overhead: GNU Terry Pratchett)
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Nope. Database-theory has not changed. You state it was 'designed 25 years ago'; the word designed implies that it has been normalized. Perhaps you prefer entities without any upfront design? (As in, evolving by Agile)
Bastard Programmer from Hell :suss: If you can't read my code, try converting it here[^][](X-Clacks-Overhead: GNU Terry Pratchett)
Eddy Vluggen wrote:
Database-theory has not changed.
But we got better tools to get close to it... Like using SF, Func, Trigger, XML data (as XML data and not string manipulated by SQL string methods), CTE, new kwywords, like OUTPUT, built in paging and so... We got a lot of it in the last 25 years...
Skipper: We'll fix it. Alex: Fix it? How you gonna fix this? Skipper: Grit, spit and a whole lotta duct tape.
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Eddy Vluggen wrote:
Database-theory has not changed.
But we got better tools to get close to it... Like using SF, Func, Trigger, XML data (as XML data and not string manipulated by SQL string methods), CTE, new kwywords, like OUTPUT, built in paging and so... We got a lot of it in the last 25 years...
Skipper: We'll fix it. Alex: Fix it? How you gonna fix this? Skipper: Grit, spit and a whole lotta duct tape.
Triggers aren't new in the database-world, and XML is not exactly the ideal format for an RDBMS.
Kornfeld Eliyahu Peter wrote:
We got a lot of it in the last 25 years...
Yes. Doesn't mean it has to be used.
Bastard Programmer from Hell :suss: If you can't read my code, try converting it here[^][](X-Clacks-Overhead: GNU Terry Pratchett)
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Triggers aren't new in the database-world, and XML is not exactly the ideal format for an RDBMS.
Kornfeld Eliyahu Peter wrote:
We got a lot of it in the last 25 years...
Yes. Doesn't mean it has to be used.
Bastard Programmer from Hell :suss: If you can't read my code, try converting it here[^][](X-Clacks-Overhead: GNU Terry Pratchett)
Eddy Vluggen wrote:
XML is not exactly the ideal format for an RDBMS
Exactly. But it has been used - so please take a moment and move from string manipulation to faster and better options, now you have them!!!
Skipper: We'll fix it. Alex: Fix it? How you gonna fix this? Skipper: Grit, spit and a whole lotta duct tape.
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And now imagine a 500+ company, managing its inventory (worth of millions), employee, customers, contact and so on, on Access... (They where located in Lod, just near enough to get infected)
Skipper: We'll fix it. Alex: Fix it? How you gonna fix this? Skipper: Grit, spit and a whole lotta duct tape.
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Eddy Vluggen wrote:
XML is not exactly the ideal format for an RDBMS
Exactly. But it has been used - so please take a moment and move from string manipulation to faster and better options, now you have them!!!
Skipper: We'll fix it. Alex: Fix it? How you gonna fix this? Skipper: Grit, spit and a whole lotta duct tape.
Kornfeld Eliyahu Peter wrote:
so please take a moment and move from string manipulation to faster and better options, now you have them!!!
Ehr.. databases existed before we had XML. So, the faster and better option would be - the database. ..and there will always be this bright genius who is going to store 32 flags as a bit-string, manipulating the thing with .Left$ en .Right$ until he gets his flag.
Bastard Programmer from Hell :suss: If you can't read my code, try converting it here[^][](X-Clacks-Overhead: GNU Terry Pratchett)
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Kornfeld Eliyahu Peter wrote:
so please take a moment and move from string manipulation to faster and better options, now you have them!!!
Ehr.. databases existed before we had XML. So, the faster and better option would be - the database. ..and there will always be this bright genius who is going to store 32 flags as a bit-string, manipulating the thing with .Left$ en .Right$ until he gets his flag.
Bastard Programmer from Hell :suss: If you can't read my code, try converting it here[^][](X-Clacks-Overhead: GNU Terry Pratchett)
Eddy Vluggen wrote:
this bright genius
And I got this DB from that 'bright genius' :((
Skipper: We'll fix it. Alex: Fix it? How you gonna fix this? Skipper: Grit, spit and a whole lotta duct tape.
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Eddy Vluggen wrote:
this bright genius
And I got this DB from that 'bright genius' :((
Skipper: We'll fix it. Alex: Fix it? How you gonna fix this? Skipper: Grit, spit and a whole lotta duct tape.
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Kornfeld Eliyahu Peter wrote:
so please take a moment and move from string manipulation to faster and better options, now you have them!!!
Ehr.. databases existed before we had XML. So, the faster and better option would be - the database. ..and there will always be this bright genius who is going to store 32 flags as a bit-string, manipulating the thing with .Left$ en .Right$ until he gets his flag.
Bastard Programmer from Hell :suss: If you can't read my code, try converting it here[^][](X-Clacks-Overhead: GNU Terry Pratchett)
Eddy Vluggen wrote:
..and there will always be this bright genius who is going to store 32 flags as a bit-string, manipulating the thing with .Left$ en .Right$ until he gets his flag.
Most likely 16 bits (or 15 coz top bit made number -ve and messy). Also smaller numbers applied to hard disks - measured in [often single or if lucky double digit] megabytes memory was in kilobytes - everything got squeezed. 25 years ago all numbers were a lot smaller than they are today. (But the best part: no damn cell phones, once ya left the office work was really over.)
Sin tack the any key okay
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No :-D I had to work with other "SQL Servers" e.g. Interbase. I'm happy now to go on with this 25 year old one from MS :laugh: [Edit] Interbase has a nice Trigger Strategy, which I'm missing in MSSQL, but that's the only thing I'm missing in MSSQL :(
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Interbase... :OMG:
www.robotecnik.com[^] - robots, CNC and PLC programming
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And now imagine a 500+ company, managing its inventory (worth of millions), employee, customers, contact and so on, on Access... (They where located in Lod, just near enough to get infected)
Skipper: We'll fix it. Alex: Fix it? How you gonna fix this? Skipper: Grit, spit and a whole lotta duct tape.
Meh. Too new-fangly. Inventory management in Excel is all any real company ever needs! For that matter, Excel can handle ALL your data! (Don't know whether to use the Joke or Rant type for this post. I feel dirty from writing it.)
Sudden Sun Death Syndrome (SSDS) is a very real concern which we should be raising awareness of. 156 billion suns die every year before they're just 1 billion years old. While the military are doing their part, it simply isn't enough to make the amount of nukes needed to save those poor stars. - TWI2T3D (Reddit)
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... a database, that was designed 25 years ago (SQL 6.5) and since then only upgraded, but never updated... Do you feel me?!
Skipper: We'll fix it. Alex: Fix it? How you gonna fix this? Skipper: Grit, spit and a whole lotta duct tape.
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I know of a similar company ... but because they don't have "database expertise" they re-type reports from Access into Excel to send out to clients. Yes ... I really did say "re-type"
CHill60 wrote:
Yes ... I really did say "re-type"
Well, copy & paste is hard!
I wanna be a eunuchs developer! Pass me a bread knife!
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No, me neither. How do you define upgraded vs updated? Is an update 'throw everything away and start again'? Windows was launched 35 years ago - has it been updated? Or upgraded? Or both? I don't see the difference. Semantics...
pt1401 wrote:
Windows was launched 35 years ago - has it been updated? Or upgraded?
Downgraded.
I wanna be a eunuchs developer! Pass me a bread knife!
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... a database, that was designed 25 years ago (SQL 6.5) and since then only upgraded, but never updated... Do you feel me?!
Skipper: We'll fix it. Alex: Fix it? How you gonna fix this? Skipper: Grit, spit and a whole lotta duct tape.
Tables is still tables, Shirley? You might want to recook a few stored procedures, scripts, and queries, but unless the data has changed hugely and new table structures haven't been implemented well, it shouldn't be too painful.
I wanna be a eunuchs developer! Pass me a bread knife!
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Please stop whining: Twenty five years ago they did know how to design a database. :laugh:
Well, yes, 25 years ago there were some people who knew how to design databases, but there were an awful lot who didn't. Many people came to SQLServer or Oracle directly from ISAM systems, so it was hardly surprising that many didn't really grasp RDBMS. Have things changed since then? Maybe - I think that people are generally a bit more clued up than they used to be on this front but I can guarantee that even as I type this, somebody, somewhere is creating a "database" with mile-wide tables and not a single foreign key to be seen - and they don't have the excuse of it being new technology. People who don't know RDBMS 1.01 (the fact that the 'R' stands for "Relational") are still banging together monstrosities that will be causing pain for the poor souls who have to clean up after them for many, many years to come. Until the world comes to its senses and introduces the death penalty for denormalisation, this problem will continue.
Slogans aren't solutions.
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Well, yes, 25 years ago there were some people who knew how to design databases, but there were an awful lot who didn't. Many people came to SQLServer or Oracle directly from ISAM systems, so it was hardly surprising that many didn't really grasp RDBMS. Have things changed since then? Maybe - I think that people are generally a bit more clued up than they used to be on this front but I can guarantee that even as I type this, somebody, somewhere is creating a "database" with mile-wide tables and not a single foreign key to be seen - and they don't have the excuse of it being new technology. People who don't know RDBMS 1.01 (the fact that the 'R' stands for "Relational") are still banging together monstrosities that will be causing pain for the poor souls who have to clean up after them for many, many years to come. Until the world comes to its senses and introduces the death penalty for denormalisation, this problem will continue.
Slogans aren't solutions.
PeejayAdams wrote:
Until the world comes to its senses and introduces the death penalty for denormalisation, this problem will continue.
Denormalisation isn't necessarily a bad thing, unless you mix it up with randomly-dump-any-value-where-you-feel-like-it "methodologies". If you need a lot of derived values, for example, it can often be less costly to have them handled within the database, rather than build them into a front end, which may radically change, year over year. Denormalisation can also provide significant performance boosts, especially where joins begin to resemble spiderwebs built by drunken spiders. For me, the sole function of a db is to provide needed data as efficiently as possible. Most of the time, that means it's best if it's at least third normal, but "most of the time" isn't "always". You shouldn't close doors to effective pathways.
I wanna be a eunuchs developer! Pass me a bread knife!
