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Selecting data from mysql using qt?

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  • D Offline
    D Offline
    doforumda
    wrote on last edited by
    #111

    @
    opt/lampp/var/mysql/phpmyadmin:
    total 144
    -rw-rw---- 1 nobody root 54 2004-12-06 15:56 db.opt
    -rw-rw---- 1 nobody root 8682 2007-03-23 20:54 pma_bookmark.frm
    -rw-rw---- 1 nobody root 0 2007-03-23 20:54 pma_bookmark.MYD
    -rw-rw---- 1 nobody root 1024 2007-03-23 20:54 pma_bookmark.MYI
    -rw-rw---- 1 nobody root 12964 2007-03-23 20:54 pma_column_info.frm
    -rw-rw---- 1 nobody root 0 2007-03-23 20:54 pma_column_info.MYD
    -rw-rw---- 1 nobody root 1024 2007-03-23 20:54 pma_column_info.MYI
    -rw-rw---- 1 nobody root 8704 2007-03-11 11:50 pma_designer_coords.frm
    -rw-rw---- 1 nobody root 0 2007-03-11 11:50 pma_designer_coords.MYD
    -rw-rw---- 1 nobody root 1024 2007-03-11 11:50 pma_designer_coords.MYI
    -rw-rw---- 1 nobody root 8730 2007-03-23 20:54 pma_history.frm
    -rw-rw---- 1 nobody root 560 2010-10-11 12:21 pma_history.MYD
    -rw-rw---- 1 nobody root 5120 2010-10-11 12:21 pma_history.MYI
    -rw-rw---- 1 nobody root 8644 2007-03-23 20:54 pma_pdf_pages.frm
    -rw-rw---- 1 nobody root 0 2007-03-23 20:54 pma_pdf_pages.MYD
    -rw-rw---- 1 nobody root 1024 2007-03-23 20:54 pma_pdf_pages.MYI
    -rw-rw---- 1 nobody root 8800 2007-03-23 20:54 pma_relation.frm
    -rw-rw---- 1 nobody root 0 2007-03-23 20:54 pma_relation.MYD
    -rw-rw---- 1 nobody root 1024 2007-03-23 20:54 pma_relation.MYI
    -rw-rw---- 1 nobody root 8708 2007-03-23 20:54 pma_table_coords.frm
    -rw-rw---- 1 nobody root 0 2007-03-23 20:54 pma_table_coords.MYD
    -rw-rw---- 1 nobody root 1024 2007-03-23 20:54 pma_table_coords.MYI
    -rw-rw---- 1 nobody root 8656 2007-03-23 20:54 pma_table_info.frm
    -rw-rw---- 1 nobody root 0 2007-03-23 20:54 pma_table_info.MYD
    -rw-rw---- 1 nobody root 1024 2007-03-23 20:54 pma_table_info.MYI

    opt/lampp/var/mysql/test:
    total 0

    opt/lampp/var/mysql/testTwo:
    total 24
    -rw-rw---- 1 nobody nogroup 65 2010-10-10 13:13 db.opt
    -rw-rw---- 1 nobody nogroup 8634 2010-10-10 13:14 testTable.frm
    -rw-rw---- 1 nobody nogroup 44 2010-10-10 13:15 testTable.MYD
    -rw-rw---- 1 nobody nogroup 2048 2010-10-10 22:58 testTable.MYI
    root@zafar-laptop:/#
    root@zafar-laptop:/# sudo ls -l opt/lampp/var/mysql/*
    -rw-rw---- 1 nobody nogroup 10485760 2010-10-10 22:58 opt/lampp/var/mysql/ibdata1
    -rw-rw---- 1 nobody nogroup 5242880 2010-10-11 12:20 opt/lampp/var/mysql/ib_logfile0
    -rw-rw---- 1 nobody nogroup 5242880 2010-10-09 20:01 opt/lampp/var/mysql/ib_logfile1
    srwxrwxrwx 1 nobody nogroup 0 2010-10-11 12:20 opt/lampp/var/mysql/mysql.sock
    -rw-r--r-- 1 nobody root 6 2008-12-02 10:52 opt/lampp/var/mysql/mysql_upgrade_info
    -rw-rw---- 1 nobody root 3658 2010-10-11 12:20 opt/lampp/var/mysql/zafar-laptop.err
    -rw-rw---- 1 nobody nogroup 5 2010-10-11 12:20 opt/lampp/var/mysql/zafar-laptop.pid

    @

    1 Reply Last reply
    0
    • D Offline
      D Offline
      doforumda
      wrote on last edited by
      #112

      @
      opt/lampp/var/mysql/cdcol:
      total 20
      -rw-rw---- 1 nobody root 8658 2007-03-23 20:54 cds.frm
      -rw-rw---- 1 nobody root 172 2009-07-30 11:58 cds.MYD
      -rw-rw---- 1 nobody root 2048 2009-07-30 12:29 cds.MYI

      opt/lampp/var/mysql/mysql:
      total 5324
      -rw-rw---- 1 nobody root 8820 2008-12-02 10:52 columns_priv.frm
      -rw-rw---- 1 nobody root 23490 2008-12-02 10:52 columns_priv.MYD
      -rw-rw---- 1 nobody root 8192 2008-12-02 10:52 columns_priv.MYI
      -rw-rw---- 1 nobody root 9582 2008-12-02 10:52 db.frm
      -rw-rw---- 1 nobody root 2200 2010-10-11 21:41 db.MYD
      -rw-rw---- 1 nobody root 5120 2010-10-11 21:41 db.MYI
      -rw-rw---- 1 nobody root 10223 2008-12-02 10:52 event.frm
      -rw-rw---- 1 nobody root 0 2008-12-02 10:52 event.MYD
      -rw-rw---- 1 nobody root 2048 2008-12-02 10:52 event.MYI
      -rw-rw---- 1 nobody root 8665 2008-12-02 10:52 func.frm
      -rw-rw---- 1 nobody root 0 2008-12-02 10:52 func.MYD
      -rw-rw---- 1 nobody root 1024 2008-12-02 10:52 func.MYI
      -rw-rw---- 1 nobody root 35 2008-12-02 12:19 general_log.CSM
      -rw-rw---- 1 nobody root 0 2008-12-02 10:52 general_log.CSV
      -rw-rw---- 1 nobody root 8776 2008-12-02 10:52 general_log.frm
      -rw-rw---- 1 nobody root 8700 2008-12-02 10:52 help_category.frm
      -rw-rw---- 1 nobody root 0 2008-12-02 10:52 help_category.MYD
      -rw-rw---- 1 nobody root 1024 2008-12-02 10:52 help_category.MYI
      -rw-rw---- 1 nobody root 8612 2008-12-02 10:52 help_keyword.frm
      -rw-rw---- 1 nobody root 0 2008-12-02 10:52 help_keyword.MYD
      -rw-rw---- 1 nobody root 1024 2008-12-02 10:52 help_keyword.MYI
      -rw-rw---- 1 nobody root 8630 2008-12-02 10:52 help_relation.frm
      -rw-rw---- 1 nobody root 0 2008-12-02 10:52 help_relation.MYD
      -rw-rw---- 1 nobody root 1024 2008-12-02 10:52 help_relation.MYI
      -rw-rw---- 1 nobody root 8770 2008-12-02 10:52 help_topic.frm
      -rw-rw---- 1 nobody root 0 2008-12-02 10:52 help_topic.MYD
      -rw-rw---- 1 nobody root 1024 2008-12-02 10:52 help_topic.MYI
      -rw-rw---- 1 nobody root 9510 2008-12-02 10:52 host.frm
      -rw-rw---- 1 nobody root 0 2008-12-02 10:52 host.MYD
      -rw-rw---- 1 nobody root 2048 2008-12-02 10:52 host.MYI
      -rw-rw---- 1 nobody root 8778 2008-12-02 10:52 ndb_binlog_index.frm
      -rw-rw---- 1 nobody root 0 2008-12-02 10:52 ndb_binlog_index.MYD
      -rw-rw---- 1 nobody root 1024 2008-12-02 10:52 ndb_binlog_index.MYI
      -rw-rw---- 1 nobody root 8586 2008-12-02 10:52 plugin.frm
      -rw-rw---- 1 nobody root 1154 2009-04-10 10:16 plugin.MYD
      -rw-rw---- 1 nobody root 2048 2009-04-10 10:16 plugin.MYI
      -rw-rw---- 1 nobody root 9996 2008-12-02 10:52 proc.frm
      -rw-rw---- 1 nobody root 740 2008-12-02 12:14 proc.MYD
      -rw-rw---- 1 nobody root 4096 2008-12-02 12:19 proc.MYI
      -rw-rw---- 1 nobody root 8875 2008-12-02 10:52 procs_priv.frm
      -rw-rw---- 1 nobody root 0 2008-12-02 10:52 procs_priv.MYD
      -rw-rw---- 1 nobody root 4096 2008-12-02 10:52 procs_priv.MYI
      -rw-rw---- 1 nobody root 8838 2008-12-02 10:52 servers.frm
      -rw-rw---- 1 nobody root 0 2008-12-02 10:52 servers.MYD
      -rw-rw---- 1 nobody root 1024 2008-12-02 10:52 servers.MYI
      -rw-rw---- 1 nobody root 35 2008-12-02 12:19 slow_log.CSM
      -rw-rw---- 1 nobody root 0 2008-12-02 10:52 slow_log.CSV
      -rw-rw---- 1 nobody root 8976 2008-12-02 10:52 slow_log.frm
      -rw-rw---- 1 nobody root 8955 2008-12-02 10:52 tables_priv.frm
      -rw-rw---- 1 nobody root 3404 2008-12-02 10:52 tables_priv.MYD
      -rw-rw---- 1 nobody root 8192 2008-12-02 10:52 tables_priv.MYI
      -rw-rw---- 1 nobody root 8636 2007-03-23 20:54 time_zone.frm
      -rw-rw---- 1 nobody root 8624 2008-12-02 10:52 time_zone_leap_second.frm
      -rw-rw---- 1 nobody root 0 2008-12-02 10:52 time_zone_leap_second.MYD
      -rw-rw---- 1 nobody root 1024 2008-12-02 10:52 time_zone_leap_second.MYI
      -rw-rw---- 1 nobody root 11795 2008-12-30 14:16 time_zone.MYD
      -rw-rw---- 1 nobody root 19456 2008-12-30 14:16 time_zone.MYI
      -rw-rw---- 1 nobody root 8606 2008-12-02 10:52 time_zone_name.frm
      -rw-rw---- 1 nobody root 331945 2008-12-30 14:16 time_zone_name.MYD
      -rw-rw---- 1 nobody root 37888 2008-12-30 14:16 time_zone_name.MYI
      -rw-rw---- 1 nobody root 8686 2008-12-30 14:16 time_zone_transition.frm
      -rw-rw---- 1 nobody root 1992570 2008-12-30 14:16 time_zone_transition.MYD
      -rw-rw---- 1 nobody root 2216960 2008-12-30 14:16 time_zone_transition.MYI
      -rw-rw---- 1 nobody root 8748 2008-12-30 14:16 time_zone_transition_type.frm
      -rw-rw---- 1 nobody root 293208 2008-12-30 14:16 time_zone_transition_type.MYD
      -rw-rw---- 1 nobody root 112640 2008-12-30 14:16 time_zone_transition_type.MYI
      -rw-rw---- 1 nobody root 10466 2008-12-02 10:52 user.frm
      -rw-rw---- 1 nobody root 388 2010-10-11 21:41 user.MYD
      -rw-rw---- 1 nobody root 2048 2010-10-11 21:41 user.MYI

      @

      1 Reply Last reply
      0
      • L Offline
        L Offline
        lyuts
        wrote on last edited by
        #113

        I bet it is here @/opt/lampp/mysql/my.cnf@

        I'm a rebel in the S.D.G.

        1 Reply Last reply
        0
        • D Offline
          D Offline
          doforumda
          wrote on last edited by
          #114

          @
          opt/lampp/var/mysql/phpmyadmin:
          total 144
          -rw-rw---- 1 nobody root 54 2004-12-06 15:56 db.opt
          -rw-rw---- 1 nobody root 8682 2007-03-23 20:54 pma_bookmark.frm
          -rw-rw---- 1 nobody root 0 2007-03-23 20:54 pma_bookmark.MYD
          -rw-rw---- 1 nobody root 1024 2007-03-23 20:54 pma_bookmark.MYI
          -rw-rw---- 1 nobody root 12964 2007-03-23 20:54 pma_column_info.frm
          -rw-rw---- 1 nobody root 0 2007-03-23 20:54 pma_column_info.MYD
          -rw-rw---- 1 nobody root 1024 2007-03-23 20:54 pma_column_info.MYI
          -rw-rw---- 1 nobody root 8704 2007-03-11 11:50 pma_designer_coords.frm
          -rw-rw---- 1 nobody root 0 2007-03-11 11:50 pma_designer_coords.MYD
          -rw-rw---- 1 nobody root 1024 2007-03-11 11:50 pma_designer_coords.MYI
          -rw-rw---- 1 nobody root 8730 2007-03-23 20:54 pma_history.frm
          -rw-rw---- 1 nobody root 560 2010-10-11 12:21 pma_history.MYD
          -rw-rw---- 1 nobody root 5120 2010-10-11 12:21 pma_history.MYI
          -rw-rw---- 1 nobody root 8644 2007-03-23 20:54 pma_pdf_pages.frm
          -rw-rw---- 1 nobody root 0 2007-03-23 20:54 pma_pdf_pages.MYD
          -rw-rw---- 1 nobody root 1024 2007-03-23 20:54 pma_pdf_pages.MYI
          -rw-rw---- 1 nobody root 8800 2007-03-23 20:54 pma_relation.frm
          -rw-rw---- 1 nobody root 0 2007-03-23 20:54 pma_relation.MYD
          -rw-rw---- 1 nobody root 1024 2007-03-23 20:54 pma_relation.MYI
          -rw-rw---- 1 nobody root 8708 2007-03-23 20:54 pma_table_coords.frm
          -rw-rw---- 1 nobody root 0 2007-03-23 20:54 pma_table_coords.MYD
          -rw-rw---- 1 nobody root 1024 2007-03-23 20:54 pma_table_coords.MYI
          -rw-rw---- 1 nobody root 8656 2007-03-23 20:54 pma_table_info.frm
          -rw-rw---- 1 nobody root 0 2007-03-23 20:54 pma_table_info.MYD
          -rw-rw---- 1 nobody root 1024 2007-03-23 20:54 pma_table_info.MYI

          opt/lampp/var/mysql/test:
          total 0

          opt/lampp/var/mysql/testTwo:
          total 24
          -rw-rw---- 1 nobody nogroup 65 2010-10-10 13:13 db.opt
          -rw-rw---- 1 nobody nogroup 8634 2010-10-10 13:14 testTable.frm
          -rw-rw---- 1 nobody nogroup 44 2010-10-10 13:15 testTable.MYD
          -rw-rw---- 1 nobody nogroup 2048 2010-10-10 22:58 testTable.MYI

          @

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          0
          • D Offline
            D Offline
            doforumda
            wrote on last edited by
            #115

            yes the second command returns this

            @
            root@zafar-laptop:/# sudo ls -l /opt/lampp/etc/my.cnf
            -rw-r--r-- 1 root root 5030 2009-04-10 10:11 /opt/lampp/etc/my.cnf
            @

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            0
            • D Offline
              D Offline
              Dii
              wrote on last edited by
              #116

              ok doforumda, that's enough... I want to make it sure, can you check, the
              sudo ls -l /opt/lampp/etc/my.cnf
              or
              sudo ls -l /opt/lampp/etc/mysql/my.cnf
              ?
              If one of them is there, let's take a look with gedit, for the
              socket = /something
              part?

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              • D Offline
                D Offline
                Dii
                wrote on last edited by
                #117

                ok, then
                sudo gedit /opt/lamp/etc/my.cnf

                look for the socket = something line

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                • L Offline
                  L Offline
                  lyuts
                  wrote on last edited by
                  #118

                  ¤ Dii ¤, maybe this would be easier?

                  @sudo find /opt/lampp -name my.cnf -type f | xargs grep -n socket@

                  I'm a rebel in the S.D.G.

                  1 Reply Last reply
                  0
                  • D Offline
                    D Offline
                    doforumda
                    wrote on last edited by
                    #119

                    Dii: i use this command sudo gedit /opt/lamp/etc/my.cnf but unfortunately the file is empty. there is nothing in it.

                    lyut: your command sudo find /opt/lampp -name my.cnf -type f | xargs grep -n socket

                    displays this
                    @
                    root@zafar-laptop:/# sudo find /opt/lampp -name my.cnf -type f | xargs
                    /opt/lampp/etc/my.cnf
                    @

                    1 Reply Last reply
                    0
                    • D Offline
                      D Offline
                      doforumda
                      wrote on last edited by
                      #120

                      sorry wait

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                      0
                      • D Offline
                        D Offline
                        Dii
                        wrote on last edited by
                        #121

                        lyuts: yes it should be easier...

                        doforumda: i misstyped the command, try this:
                        sudo gedit /opt/lampp/etc/my.cnf

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                        • D Offline
                          D Offline
                          doforumda
                          wrote on last edited by
                          #122

                          lyut: your command sudo find /opt/lampp -name my.cnf -type f | xargs grep -n socket actually displays this. above one was wrong because i use the wrong command

                          @
                          root@zafar-laptop:/# sudo find /opt/lampp -name my.cnf -type f | xargs grep -n socket
                          21:socket = /opt/lampp/var/mysql/mysql.sock
                          28:socket = /opt/lampp/var/mysql/mysql.sock
                          44:# All interaction with mysqld must be made via Unix sockets or named pipes.
                          @

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                          0
                          • D Offline
                            D Offline
                            doforumda
                            wrote on last edited by
                            #123

                            lyut: sudo gedit /opt/lampp/etc/my.cnf this command does open my.cnf and it also have

                            socket = /opt/lampp/var/mysql/mysql.sock

                            in two lines means there are two entries for socket in my.cnf

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                            • L Offline
                              L Offline
                              lyuts
                              wrote on last edited by
                              #124

                              I think this is rather rough solution, but worth trying:

                              @sudo mkdir -p /var/run/mysqld
                              sudo ln -s /opt/lampp/var/mysql/mysql.sock /var/run/mysqld/mysqld.sock@

                              I'm a rebel in the S.D.G.

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                              0
                              • D Offline
                                D Offline
                                doforumda
                                wrote on last edited by
                                #125

                                so what next i think here the path for socket is correct because i have one mysql.sock file in that exactly same directory

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                                • D Offline
                                  D Offline
                                  doforumda
                                  wrote on last edited by
                                  #126

                                  you mean i should create a dir at opt/lampp/var/run/mysqld ????

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                                  • D Offline
                                    D Offline
                                    doforumda
                                    wrote on last edited by
                                    #127

                                    millions of thanks to both of you TYUT and Dii. it works. one more question can please tell me what does this command do
                                    @
                                    sudo ln -s /opt/lampp/var/mysql/mysql.sock /var/run/mysqld/mysqld.sock
                                    @

                                    and also if i want to install everything from scratch then once i have to use this command to make it work?

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                                    • D Offline
                                      D Offline
                                      Dii
                                      wrote on last edited by
                                      #128

                                      doforumda: the problem was ~small... the Qt mysql driver looks for the socket file (the connection to mysql) in the default location (var/run/mysqld/mysqld.sock), though you had it somewhere else, because your lampp package changed the path.

                                      The "ln -s" made a symbolic link to that, so the /var/run/mysqld/mysqld.sock point to the /opt/lampp/var/mysql/mysql.sock. This way Qt can find it. If you do a new installation, with lampp, you should do it again, if you use the regular mysql package, probably, you won't face this problem.

                                      lyuts: great work, we deserve these points :)

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                                      • L Offline
                                        L Offline
                                        lyuts
                                        wrote on last edited by
                                        #129

                                        I think our solution is rough enough, but at least it works. I think the best solution is to set the socket parameter in my.cnf to /var/run/mysqld/mysqld.sock. But it is up to you doforumda.

                                        bq. millions of thanks to both of you TYUT and Dii.

                                        Hey, I'm lyuts, not TYUT :)

                                        doforumda and ¤ Dii ¤, my congratulations, we did it.

                                        I'm a rebel in the S.D.G.

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                                        • D Offline
                                          D Offline
                                          Dii
                                          wrote on last edited by
                                          #130

                                          lyuts: I think that's the best solution, if he is changing the socket parameter of mysql probably he will screw up some other components in his LAMPP configuration. I don't recommend that.

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