Illegal mix of collations (utf8_unicode_ci,IMPLICIT) and (utf8_turkish_ci,IMPLICIT) for operation '=' and...

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Illegal mix of collations (utf8_unicode_ci,IMPLICIT) and (utf8_turkish_ci,IMPLICIT) for operation '=' and why?


MySQL: Illegal mix of collationsSQL Server: Collation of the resource databaseDB collation is used for comparison instead of column collationUsing COLLATE with UNIONThe user specified as a definer ('root'@'%') does not existWorkbench Error Code 1267 - utf8_unicode and utf8_generalLoading MySQL Dump From one Character Set to AnotherWhy is mixing column collations in a single database considered bad?mariadb replication issuesIllegal mix of collations, 'ALTER' not helping













1















Hello I got error in mariadb. In my command two columns have different collate. one is utf8_unicode_ci (a) other is utf8_turkish_ci (b). Why I got error when I compare these columns ( where a = b ) both of them utf8.
Error:
Illegal mix of collations (utf8_unicode_ci,IMPLICIT) and (utf8_turkish_ci,IMPLICIT) for operation '='










share|improve this question



























    1















    Hello I got error in mariadb. In my command two columns have different collate. one is utf8_unicode_ci (a) other is utf8_turkish_ci (b). Why I got error when I compare these columns ( where a = b ) both of them utf8.
    Error:
    Illegal mix of collations (utf8_unicode_ci,IMPLICIT) and (utf8_turkish_ci,IMPLICIT) for operation '='










    share|improve this question

























      1












      1








      1








      Hello I got error in mariadb. In my command two columns have different collate. one is utf8_unicode_ci (a) other is utf8_turkish_ci (b). Why I got error when I compare these columns ( where a = b ) both of them utf8.
      Error:
      Illegal mix of collations (utf8_unicode_ci,IMPLICIT) and (utf8_turkish_ci,IMPLICIT) for operation '='










      share|improve this question














      Hello I got error in mariadb. In my command two columns have different collate. one is utf8_unicode_ci (a) other is utf8_turkish_ci (b). Why I got error when I compare these columns ( where a = b ) both of them utf8.
      Error:
      Illegal mix of collations (utf8_unicode_ci,IMPLICIT) and (utf8_turkish_ci,IMPLICIT) for operation '='







      mariadb collation






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










      asked Dec 25 '15 at 9:04









      Ahmet Melih BaşbuğAhmet Melih Başbuğ

      1071213




      1071213






















          2 Answers
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          active

          oldest

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          2














          It would be useful if you can provide your tables definition. However, your error suggests that your are trying to check equality between two columns having different collation.



          One solution is to change collation of one of the columns to match the other collation. Check here - Column Level.



          Other solution is to use COLLATE clause (I do not know if this works in mariadb, but it should be there).



          Personally, I prefer to avoid COLLATE and harmonize string columns as collation mismatch tend to force lots of COLLATEs (maintenance problems).






          share|improve this answer
























          • I would just add that the reason for the error is that the results of = might be different depending on which collation is used, and the server has no way to decide which one is the right one, so you have to tell it.

            – jkavalik
            Dec 26 '15 at 19:40



















          0














          dump your database, create the database with the same collate of the tables, review your collate tables... and recover it all





          share








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          Alex is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
          Check out our Code of Conduct.




















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            2 Answers
            2






            active

            oldest

            votes








            2 Answers
            2






            active

            oldest

            votes









            active

            oldest

            votes






            active

            oldest

            votes









            2














            It would be useful if you can provide your tables definition. However, your error suggests that your are trying to check equality between two columns having different collation.



            One solution is to change collation of one of the columns to match the other collation. Check here - Column Level.



            Other solution is to use COLLATE clause (I do not know if this works in mariadb, but it should be there).



            Personally, I prefer to avoid COLLATE and harmonize string columns as collation mismatch tend to force lots of COLLATEs (maintenance problems).






            share|improve this answer
























            • I would just add that the reason for the error is that the results of = might be different depending on which collation is used, and the server has no way to decide which one is the right one, so you have to tell it.

              – jkavalik
              Dec 26 '15 at 19:40
















            2














            It would be useful if you can provide your tables definition. However, your error suggests that your are trying to check equality between two columns having different collation.



            One solution is to change collation of one of the columns to match the other collation. Check here - Column Level.



            Other solution is to use COLLATE clause (I do not know if this works in mariadb, but it should be there).



            Personally, I prefer to avoid COLLATE and harmonize string columns as collation mismatch tend to force lots of COLLATEs (maintenance problems).






            share|improve this answer
























            • I would just add that the reason for the error is that the results of = might be different depending on which collation is used, and the server has no way to decide which one is the right one, so you have to tell it.

              – jkavalik
              Dec 26 '15 at 19:40














            2












            2








            2







            It would be useful if you can provide your tables definition. However, your error suggests that your are trying to check equality between two columns having different collation.



            One solution is to change collation of one of the columns to match the other collation. Check here - Column Level.



            Other solution is to use COLLATE clause (I do not know if this works in mariadb, but it should be there).



            Personally, I prefer to avoid COLLATE and harmonize string columns as collation mismatch tend to force lots of COLLATEs (maintenance problems).






            share|improve this answer













            It would be useful if you can provide your tables definition. However, your error suggests that your are trying to check equality between two columns having different collation.



            One solution is to change collation of one of the columns to match the other collation. Check here - Column Level.



            Other solution is to use COLLATE clause (I do not know if this works in mariadb, but it should be there).



            Personally, I prefer to avoid COLLATE and harmonize string columns as collation mismatch tend to force lots of COLLATEs (maintenance problems).







            share|improve this answer












            share|improve this answer



            share|improve this answer










            answered Dec 25 '15 at 23:04









            AlexeiAlexei

            784524




            784524













            • I would just add that the reason for the error is that the results of = might be different depending on which collation is used, and the server has no way to decide which one is the right one, so you have to tell it.

              – jkavalik
              Dec 26 '15 at 19:40



















            • I would just add that the reason for the error is that the results of = might be different depending on which collation is used, and the server has no way to decide which one is the right one, so you have to tell it.

              – jkavalik
              Dec 26 '15 at 19:40

















            I would just add that the reason for the error is that the results of = might be different depending on which collation is used, and the server has no way to decide which one is the right one, so you have to tell it.

            – jkavalik
            Dec 26 '15 at 19:40





            I would just add that the reason for the error is that the results of = might be different depending on which collation is used, and the server has no way to decide which one is the right one, so you have to tell it.

            – jkavalik
            Dec 26 '15 at 19:40













            0














            dump your database, create the database with the same collate of the tables, review your collate tables... and recover it all





            share








            New contributor




            Alex is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
            Check out our Code of Conduct.

























              0














              dump your database, create the database with the same collate of the tables, review your collate tables... and recover it all





              share








              New contributor




              Alex is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
              Check out our Code of Conduct.























                0












                0








                0







                dump your database, create the database with the same collate of the tables, review your collate tables... and recover it all





                share








                New contributor




                Alex is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
                Check out our Code of Conduct.










                dump your database, create the database with the same collate of the tables, review your collate tables... and recover it all






                share








                New contributor




                Alex is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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                share


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                answered 4 mins ago









                AlexAlex

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                Alex is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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                Alex is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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