Skip to content
  • Categories
  • Recent
  • Tags
  • Popular
  • Users
  • Groups
  • Search
  • Get Qt Extensions
  • Unsolved
Collapse
Brand Logo
  1. Home
  2. Qt Development
  3. General and Desktop
  4. Assertion failed
Qt 6.11 is out! See what's new in the release blog

Assertion failed

Scheduled Pinned Locked Moved General and Desktop
7 Posts 2 Posters 2.3k Views 1 Watching
  • Oldest to Newest
  • Newest to Oldest
  • Most Votes
Reply
  • Reply as topic
Log in to reply
This topic has been deleted. Only users with topic management privileges can see it.
  • P Offline
    P Offline
    Polina89
    wrote on last edited by
    #1

    Hi. I have a very simple Sql query

    @query.clear();
    query.prepare("select FIO from inspectors where FIO=:FIO");
    query.bindValue(":FIO",text.trimmed());
    query.exec();@

    When it is executed I get this error:
    Assertion failed!
    Program:...
    File:.\libmysql.c

    When I change my Sql statement to
    @"select id from inspectors where FIO=:FIO"@

    the error is gone.
    So, what is the problem?Thanx a lot!

    1 Reply Last reply
    0
    • raven-worxR Offline
      raven-worxR Offline
      raven-worx
      Moderators
      wrote on last edited by
      #2

      and which assert is hit? What's it's condition?

      Also IMO your first query doesn't make much sense :)

      --- SUPPORT REQUESTS VIA CHAT WILL BE IGNORED ---
      If you have a question please use the forum so others can benefit from the solution in the future

      1 Reply Last reply
      0
      • P Offline
        P Offline
        Polina89
        wrote on last edited by
        #3

        Expression: param->buffer_length!=0
        I just check if I already have a record with this FIO. At the beginnig my query was
        @select *from inspectors where FIO=:FIO@

        But i still had this mistake.And only when I change it to

        @select id from inspectors where FIO=:FIO@

        it works fine

        1 Reply Last reply
        0
        • raven-worxR Offline
          raven-worxR Offline
          raven-worx
          Moderators
          wrote on last edited by
          #4

          @
          select from inspectors where FIO=:FIO
          @
          You are missing a space after the "
          "

          --- SUPPORT REQUESTS VIA CHAT WILL BE IGNORED ---
          If you have a question please use the forum so others can benefit from the solution in the future

          1 Reply Last reply
          0
          • P Offline
            P Offline
            Polina89
            wrote on last edited by
            #5

            I'm very sorry. I wrote it wrong only here. In my programm the query is correct=)

            1 Reply Last reply
            0
            • raven-worxR Offline
              raven-worxR Offline
              raven-worx
              Moderators
              wrote on last edited by
              #6

              may it be possible that text.trimmed() results in an empty string in your application?

              --- SUPPORT REQUESTS VIA CHAT WILL BE IGNORED ---
              If you have a question please use the forum so others can benefit from the solution in the future

              1 Reply Last reply
              0
              • P Offline
                P Offline
                Polina89
                wrote on last edited by
                #7

                No, it is impossible....May it be connected somehow with the fact that one of the fields in my db has got type TEXT?

                1 Reply Last reply
                0

                • Login

                • Login or register to search.
                • First post
                  Last post
                0
                • Categories
                • Recent
                • Tags
                • Popular
                • Users
                • Groups
                • Search
                • Get Qt Extensions
                • Unsolved