Grant deny permission stacking

The name of the pictureThe name of the pictureThe name of the pictureClash Royale CLAN TAG#URR8PPP





.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty margin-bottom:0;







up vote
9
down vote

favorite












For the role db_denycustomer, I want only the column code of the customer table to be SELECTable, and none of the others. So I did this:



DENY SELECT ON dbo.customer TO db_denycustomer
GRANT SELECT ON dbo.customer (code) TO db_denycustomer


...and it works fine. Cool! But, why?



What I've read in related articles is that permissions stack, but DENY takes precedence. In contrast, in my case, it seems that the last permission "query" took precedence. Sure enough, if I execute them in reverse order, the latter DENY hides the code column too.



Could you please elaborate on this?



I have also included the default db_datawriter and db_datareader roles to the user that I tested with.






sql-server permissions role







share|improve this question





























    up vote
    9
    down vote

    favorite












    For the role db_denycustomer, I want only the column code of the customer table to be SELECTable, and none of the others. So I did this:



    DENY SELECT ON dbo.customer TO db_denycustomer
    GRANT SELECT ON dbo.customer (code) TO db_denycustomer


    ...and it works fine. Cool! But, why?



    What I've read in related articles is that permissions stack, but DENY takes precedence. In contrast, in my case, it seems that the last permission "query" took precedence. Sure enough, if I execute them in reverse order, the latter DENY hides the code column too.



    Could you please elaborate on this?



    I have also included the default db_datawriter and db_datareader roles to the user that I tested with.






    sql-server permissions role







    share|improve this question

























      up vote
      9
      down vote

      favorite









      up vote
      9
      down vote

      favorite











      For the role db_denycustomer, I want only the column code of the customer table to be SELECTable, and none of the others. So I did this:



      DENY SELECT ON dbo.customer TO db_denycustomer
      GRANT SELECT ON dbo.customer (code) TO db_denycustomer


      ...and it works fine. Cool! But, why?



      What I've read in related articles is that permissions stack, but DENY takes precedence. In contrast, in my case, it seems that the last permission "query" took precedence. Sure enough, if I execute them in reverse order, the latter DENY hides the code column too.



      Could you please elaborate on this?



      I have also included the default db_datawriter and db_datareader roles to the user that I tested with.






      sql-server permissions role







      share|improve this question















      For the role db_denycustomer, I want only the column code of the customer table to be SELECTable, and none of the others. So I did this:



      DENY SELECT ON dbo.customer TO db_denycustomer
      GRANT SELECT ON dbo.customer (code) TO db_denycustomer


      ...and it works fine. Cool! But, why?



      What I've read in related articles is that permissions stack, but DENY takes precedence. In contrast, in my case, it seems that the last permission "query" took precedence. Sure enough, if I execute them in reverse order, the latter DENY hides the code column too.



      Could you please elaborate on this?



      I have also included the default db_datawriter and db_datareader roles to the user that I tested with.






      sql-server permissions role




      sql-server permissions role






      share|improve this question















      share|improve this question













      share|improve this question




      share|improve this question








      edited yesterday









      Paul White♦

      46.5k14251398




      46.5k14251398










      asked yesterday









      George Menoutis

      1534




      1534




















          1 Answer
          1






          active

          oldest

          votes

















          up vote
          10
          down vote



          accepted










          This is documented behavior provided for backwards compatibility. Documentation excerpt:




          Caution A table-level DENY does not take precedence over a
          column-level GRANT. This inconsistency in the permissions hierarchy
          has been preserved for backward compatibility.







          share|improve this answer




















            Your Answer







            StackExchange.ready(function()
            var channelOptions =
            tags: "".split(" "),
            id: "182"
            ;
            initTagRenderer("".split(" "), "".split(" "), channelOptions);

            StackExchange.using("externalEditor", function()
            // Have to fire editor after snippets, if snippets enabled
            if (StackExchange.settings.snippets.snippetsEnabled)
            StackExchange.using("snippets", function()
            createEditor();
            );

            else
            createEditor();

            );

            function createEditor()
            StackExchange.prepareEditor(
            heartbeatType: 'answer',
            convertImagesToLinks: false,
            noModals: false,
            showLowRepImageUploadWarning: true,
            reputationToPostImages: null,
            bindNavPrevention: true,
            postfix: "",
            onDemand: true,
            discardSelector: ".discard-answer"
            ,immediatelyShowMarkdownHelp:true
            );



            );













             

            draft saved


            draft discarded


















            StackExchange.ready(
            function ()
            StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fdba.stackexchange.com%2fquestions%2f217259%2fgrant-deny-permission-stacking%23new-answer', 'question_page');

            );

            Post as a guest

















            1 Answer
            1






            active

            oldest

            votes








            1 Answer
            1






            active

            oldest

            votes









            active

            oldest

            votes






            active

            oldest

            votes








            up vote
            10
            down vote



            accepted










            This is documented behavior provided for backwards compatibility. Documentation excerpt:




            Caution A table-level DENY does not take precedence over a
            column-level GRANT. This inconsistency in the permissions hierarchy
            has been preserved for backward compatibility.







            share|improve this answer
























              up vote
              10
              down vote



              accepted










              This is documented behavior provided for backwards compatibility. Documentation excerpt:




              Caution A table-level DENY does not take precedence over a
              column-level GRANT. This inconsistency in the permissions hierarchy
              has been preserved for backward compatibility.







              share|improve this answer






















                up vote
                10
                down vote



                accepted







                up vote
                10
                down vote



                accepted






                This is documented behavior provided for backwards compatibility. Documentation excerpt:




                Caution A table-level DENY does not take precedence over a
                column-level GRANT. This inconsistency in the permissions hierarchy
                has been preserved for backward compatibility.







                share|improve this answer












                This is documented behavior provided for backwards compatibility. Documentation excerpt:




                Caution A table-level DENY does not take precedence over a
                column-level GRANT. This inconsistency in the permissions hierarchy
                has been preserved for backward compatibility.








                share|improve this answer












                share|improve this answer



                share|improve this answer










                answered yesterday









                Dan Guzman

                12.3k11533




                12.3k11533



























                     

                    draft saved


                    draft discarded















































                     


                    draft saved


                    draft discarded














                    StackExchange.ready(
                    function ()
                    StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fdba.stackexchange.com%2fquestions%2f217259%2fgrant-deny-permission-stacking%23new-answer', 'question_page');

                    );

                    Post as a guest
































































                    Comments

                    Post a Comment

                    Popular posts from this blog

                    What does second last employer means? [closed]

                    Image
                    Clash Royale CLAN TAG #URR8PPP .everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty margin-bottom:0; up vote -3 down vote favorite Say, for example I have worked in the following companies, Company A => 2010 - 2011 Company B => 2011 - 2012 Company C => 2012 - Till Date Company D => Have offer Now assume Company D is asking to submit documents from my second last employer. So from the list of companies given, which company would be qualified as second last employer? software-industry employer share | improve this question asked Aug 10 '14 at 5:16 Rajaprabhu Aravindasamy 559 1 6 13 closed as off-topic by Jim G., jmort253 ♦ Aug 11 '14 at 1:58 This question appears to be off-topic. The users who voted to close gave this specific reason: "Questions seeking advice on company-specific regulations, agreements, or policies should be directed to your manager or HR department. Questions that address...
                    Read more

                    Installing NextGIS Connect into QGIS 3?

                    Image
                    Clash Royale CLAN TAG #URR8PPP .everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty margin-bottom:0; up vote 1 down vote favorite Just acquired free version of NEXTGIS and trying to install the plugin for QGIS. It tells me it was not designed for version 3 of QGIS. How do I set up the QGIS-NEXTGIS interface then? qgis qgis-plugins nextgis share | improve this question edited 3 hours ago PolyGeo ♦ 51.9k 17 77 233 asked 4 hours ago IanGS 16 4 New contributor IanGS is a new contributor to this site. Take care in asking for clarification, commenting, and answering. Check out our Code of Conduct. add a comment  |  up vote 1 down vote favorite Just acquired free version of NEXTGIS and trying to install the plugin for QGIS. It tells me it was not designed for version 3 of QGIS. How do I set up the QGIS-NEXTGIS interface then? qgis qgis-plugin...
                    Read more

                    One-line joke

                    A one-liner is a joke that is delivered in a single line. A good one-liner is said to be pithy - concise and meaningful. [1] Comedians and actors use this comedic method as part of their act, e.g. Jimmy Carr, Tommy Cooper, Rodney Dangerfield, Norm Macdonald, Ken Dodd, Stewart Francis, Zach Galifianakis, Mitch Hedberg, Anthony Jeselnik, Milton Jones, Shappi Khorsandi, Jay London, Mark Linn-Baker, Demetri Martin, Groucho Marx, Dan Mintz, Emo Philips, Tim Vine, Steven Wright and Henny Youngman and Arnold Schwarzenegger. [ citation needed ] Many fictional characters are also known to deliver one-liners, including James Bond, who usually includes pithy and laconic quips after disposing of a villain. [ citation needed ] Examples "A baby seal walks into a club." "A dyslexic man walks into a bra." (Anonymous) "There are three types of people, those who can count and those who can't." "Venison's dear, isn't it?" (Jimmy Carr) "An escala...
                    Read more