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  3. I write the SQL wrong every time.

I write the SQL wrong every time.

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databasedesignhelp
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  • L Lost User

    I'm so used to writing:

    SELECT * FROM [table name]

    That you can bet when it's time to delete I'll write:

    DELETE * FROM [table name]

    I no longer blame myself. I consider it a language design bug thingy.

    G Offline
    G Offline
    GenJerDan
    wrote on last edited by
    #6

    Always write the WHERE clause first, even if it doesn't need one. WHERE 1=2 is always a good choice until you've got the rest worked out. Me, what I usually screw up with is forgetting which database I'm on. Oh, you mean I just wiped the production database? Oops.

    No dogs or cats are in the classroom. My Mu[sic] My Films My Windows Programs, etc.

    L 1 Reply Last reply
    0
    • L Lost User

      I'm so used to writing:

      SELECT * FROM [table name]

      That you can bet when it's time to delete I'll write:

      DELETE * FROM [table name]

      I no longer blame myself. I consider it a language design bug thingy.

      Mike HankeyM Offline
      Mike HankeyM Offline
      Mike Hankey
      wrote on last edited by
      #7

      I use Squirrel a redneck SQL; GIMME what I need FROM [table name] DELETE what I don't need FROM [table name]

      VS2010/Atmel Studio 6.0 ToDo Manager Extension
      Version 3.0 now available. There is no place like 127.0.0.1

      C I 2 Replies Last reply
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      • L Lost User

        I'm so used to writing:

        SELECT * FROM [table name]

        That you can bet when it's time to delete I'll write:

        DELETE * FROM [table name]

        I no longer blame myself. I consider it a language design bug thingy.

        V Offline
        V Offline
        Vark111
        wrote on last edited by
        #8

        I got into the habit of making myself look at the thing I wanted to delete before deleting.

        F I 2 Replies Last reply
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        • G GenJerDan

          Always write the WHERE clause first, even if it doesn't need one. WHERE 1=2 is always a good choice until you've got the rest worked out. Me, what I usually screw up with is forgetting which database I'm on. Oh, you mean I just wiped the production database? Oops.

          No dogs or cats are in the classroom. My Mu[sic] My Films My Windows Programs, etc.

          L Offline
          L Offline
          Lost User
          wrote on last edited by
          #9

          Solid advice but the ONLY time I ever use the delete command is to clear test database tables. I never use delete in production - everything is a log and if the user doesn't want to see it anymore a flag is set on the record. I was getting burned too often by people who would blame me for bad data. Every item and every change is logged and nothing is ever deleted. :^)

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          • L Lost User

            Solid advice but the ONLY time I ever use the delete command is to clear test database tables. I never use delete in production - everything is a log and if the user doesn't want to see it anymore a flag is set on the record. I was getting burned too often by people who would blame me for bad data. Every item and every change is logged and nothing is ever deleted. :^)

            G Offline
            G Offline
            GenJerDan
            wrote on last edited by
            #10

            :-D

            No dogs or cats are in the classroom. My Mu[sic] My Films My Windows Programs, etc.

            1 Reply Last reply
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            • C Colin Mullikin

              What's SQL...? :-\

              The United States invariably does the right thing, after having exhausted every other alternative. -Winston Churchill America is the only country that went from barbarism to decadence without civilization in between. -Oscar Wilde Wow, even the French showed a little more spine than that before they got their sh*t pushed in.[^] -Colin Mullikin

              L Offline
              L Offline
              Lost User
              wrote on last edited by
              #11

              Colin Mullikin wrote:

              What's SQL...?

              An advanced language for querying databases that doesn't involve tons of ridiculously intricate frameworks and mysterious black box middle-tier software. Preferred by people who break out in a rash anytime something becomes more about the architecture then getting stuff done. ;P

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              • L Lost User

                Colin Mullikin wrote:

                What's SQL...?

                An advanced language for querying databases that doesn't involve tons of ridiculously intricate frameworks and mysterious black box middle-tier software. Preferred by people who break out in a rash anytime something becomes more about the architecture then getting stuff done. ;P

                C Offline
                C Offline
                Clifford Nelson
                wrote on last edited by
                #12

                MehGerbil wrote:

                An advanced language for querying databases

                Don't know if I would call it advanced.

                J 1 Reply Last reply
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                • L Lost User

                  Colin Mullikin wrote:

                  What's SQL...?

                  An advanced language for querying databases that doesn't involve tons of ridiculously intricate frameworks and mysterious black box middle-tier software. Preferred by people who break out in a rash anytime something becomes more about the architecture then getting stuff done. ;P

                  C Offline
                  C Offline
                  Colin Mullikin
                  wrote on last edited by
                  #13

                  MehGerbil wrote:

                  Preferred by people who break out in a rash anytime something becomes more about the architecture then getting stuff done

                  Water, meet monitor. :laugh: :laugh:

                  The United States invariably does the right thing, after having exhausted every other alternative. -Winston Churchill America is the only country that went from barbarism to decadence without civilization in between. -Oscar Wilde Wow, even the French showed a little more spine than that before they got their sh*t pushed in.[^] -Colin Mullikin

                  1 Reply Last reply
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                  • L Lost User

                    I'm so used to writing:

                    SELECT * FROM [table name]

                    That you can bet when it's time to delete I'll write:

                    DELETE * FROM [table name]

                    I no longer blame myself. I consider it a language design bug thingy.

                    C Offline
                    C Offline
                    Clifford Nelson
                    wrote on last edited by
                    #14

                    Personally I use extension methods when writing LINQ, not the SQL like syntax. Anytime I see the SQL syntax my mind goes blank.

                    K 1 Reply Last reply
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                    • L Lost User

                      I'm so used to writing:

                      SELECT * FROM [table name]

                      That you can bet when it's time to delete I'll write:

                      DELETE * FROM [table name]

                      I no longer blame myself. I consider it a language design bug thingy.

                      D Offline
                      D Offline
                      dexterama
                      wrote on last edited by
                      #15

                      But it's not really a 'bug thingy': You can select * (meaning all) or columns you name when selecting. When you Delete, it's the whole ROW, not columns, hence the */Column names aren't required. :-)

                      Think of how stupid the average person is, and realize half of them are stupider than that. - George Carlin

                      L 1 Reply Last reply
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                      • Mike HankeyM Mike Hankey

                        I use Squirrel a redneck SQL; GIMME what I need FROM [table name] DELETE what I don't need FROM [table name]

                        VS2010/Atmel Studio 6.0 ToDo Manager Extension
                        Version 3.0 now available. There is no place like 127.0.0.1

                        C Offline
                        C Offline
                        Colin Mullikin
                        wrote on last edited by
                        #16

                        They didn't teach us that variant in school... :laugh:

                        The United States invariably does the right thing, after having exhausted every other alternative. -Winston Churchill America is the only country that went from barbarism to decadence without civilization in between. -Oscar Wilde Wow, even the French showed a little more spine than that before they got their sh*t pushed in.[^] -Colin Mullikin

                        Mike HankeyM 1 Reply Last reply
                        0
                        • L Lost User

                          I'm so used to writing:

                          SELECT * FROM [table name]

                          That you can bet when it's time to delete I'll write:

                          DELETE * FROM [table name]

                          I no longer blame myself. I consider it a language design bug thingy.

                          C Offline
                          C Offline
                          Chris Meech
                          wrote on last edited by
                          #17

                          Which is why I have replaced that with

                          SELECT COUNT(ROWID) FROM [table_name]

                          Sometimes that by itself will tell me all I need to know. :)

                          Chris Meech I am Canadian. [heard in a local bar] In theory there is no difference between theory and practice. In practice there is. [Yogi Berra] posting about Crystal Reports here is like discussing gay marriage on a catholic church’s website.[Nishant Sivakumar]

                          1 Reply Last reply
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                          • D dexterama

                            But it's not really a 'bug thingy': You can select * (meaning all) or columns you name when selecting. When you Delete, it's the whole ROW, not columns, hence the */Column names aren't required. :-)

                            Think of how stupid the average person is, and realize half of them are stupider than that. - George Carlin

                            L Offline
                            L Offline
                            Lost User
                            wrote on last edited by
                            #18

                            I bet you're a riot at parties. :-D

                            1 Reply Last reply
                            0
                            • M Matt U

                              I figured I was the only one so I was too embarrassed to ever post about it here. O.o

                              djj55: Nice but may have a permission problem Pete O'Hanlon: He has my permission to run it.

                              C Offline
                              C Offline
                              Corporal Agarn
                              wrote on last edited by
                              #19

                              Yet you quote a DBA. :-D

                              M 1 Reply Last reply
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                              • C Corporal Agarn

                                Yet you quote a DBA. :-D

                                M Offline
                                M Offline
                                Matt U
                                wrote on last edited by
                                #20

                                Oh, you weren't supposed to see that. :)

                                djj55: Nice but may have a permission problem Pete O'Hanlon: He has my permission to run it.

                                1 Reply Last reply
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                                • V Vark111

                                  I got into the habit of making myself look at the thing I wanted to delete before deleting.

                                  F Offline
                                  F Offline
                                  Forogar
                                  wrote on last edited by
                                  #21

                                  Me too!

                                  - Life in the fast lane is only fun if you live in a country with no speed limits. - Of all the things I have lost, it is my mind that I miss the most. - I vaguely remember having a good memory...

                                  1 Reply Last reply
                                  0
                                  • L Lost User

                                    I'm so used to writing:

                                    SELECT * FROM [table name]

                                    That you can bet when it's time to delete I'll write:

                                    DELETE * FROM [table name]

                                    I no longer blame myself. I consider it a language design bug thingy.

                                    T Offline
                                    T Offline
                                    TheGreatAndPowerfulOz
                                    wrote on last edited by
                                    #22

                                    If get in the habit of putting all your statements inside a transaction, then if you realize you made a mistake you can roll it back without affecting the table. Of course, you have to remember to commit the transaction in a timely manner, otherwise the table remains locked.

                                    If your actions inspire others to dream more, learn more, do more and become more, you are a leader.-John Q. Adams
                                    You must accept one of two basic premises: Either we are alone in the universe, or we are not alone in the universe. And either way, the implications are staggering.-Wernher von Braun
                                    Only two things are infinite, the universe and human stupidity, and I'm not sure about the former.-Albert Einstein

                                    1 Reply Last reply
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                                    • L Lost User

                                      I've found a very easy way to completely avoid making any mistakes in SQL: I don't use SQL.

                                      R Offline
                                      R Offline
                                      Ravi Bhavnani
                                      wrote on last edited by
                                      #23

                                      You're lucky man.  I often wake up in a cold sweat in the middle of the night wondering if I left out the WHERE clause when executing a DELETE. :sigh: /ravi

                                      My new year resolution: 2048 x 1536 Home | Articles | My .NET bits | Freeware ravib(at)ravib(dot)com

                                      1 Reply Last reply
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                                      • L Lost User

                                        Solid advice but the ONLY time I ever use the delete command is to clear test database tables. I never use delete in production - everything is a log and if the user doesn't want to see it anymore a flag is set on the record. I was getting burned too often by people who would blame me for bad data. Every item and every change is logged and nothing is ever deleted. :^)

                                        I Offline
                                        I Offline
                                        IndifferentDisdain
                                        wrote on last edited by
                                        #24

                                        Agreed, solid advice, but cloud storage (my company is in Azure now) makes soft deletes expensive. What we've started doing is setting soft deletes on large blobs, then purging those older than 90 days every month or so; if they don't notice it in 90 days, then YAGNI :)

                                        1 Reply Last reply
                                        0
                                        • Mike HankeyM Mike Hankey

                                          I use Squirrel a redneck SQL; GIMME what I need FROM [table name] DELETE what I don't need FROM [table name]

                                          VS2010/Atmel Studio 6.0 ToDo Manager Extension
                                          Version 3.0 now available. There is no place like 127.0.0.1

                                          I Offline
                                          I Offline
                                          IndifferentDisdain
                                          wrote on last edited by
                                          #25

                                          Are you OSS'ing it? I'm originally from Texas, so I'm sure I could assist.

                                          1 Reply Last reply
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