Will a mysql table lock wait or return an error if another process has the table;












0















If I have one script (B) that is writing to a MySQL table without a lock and another script (A) tries to get a lock on that table at the very same moment, what happens?



Will Script A immediately return an (unable to lock error), or will it hang till it either gets the lock or exceeds the time_out default?



Thanks.



Script A



lock tables mytable write;
...do some reading....
...do some writing....
unlock tables;


Script B



...do some writing without a lock....









share|improve this question



























    0















    If I have one script (B) that is writing to a MySQL table without a lock and another script (A) tries to get a lock on that table at the very same moment, what happens?



    Will Script A immediately return an (unable to lock error), or will it hang till it either gets the lock or exceeds the time_out default?



    Thanks.



    Script A



    lock tables mytable write;
    ...do some reading....
    ...do some writing....
    unlock tables;


    Script B



    ...do some writing without a lock....









    share|improve this question

























      0












      0








      0








      If I have one script (B) that is writing to a MySQL table without a lock and another script (A) tries to get a lock on that table at the very same moment, what happens?



      Will Script A immediately return an (unable to lock error), or will it hang till it either gets the lock or exceeds the time_out default?



      Thanks.



      Script A



      lock tables mytable write;
      ...do some reading....
      ...do some writing....
      unlock tables;


      Script B



      ...do some writing without a lock....









      share|improve this question














      If I have one script (B) that is writing to a MySQL table without a lock and another script (A) tries to get a lock on that table at the very same moment, what happens?



      Will Script A immediately return an (unable to lock error), or will it hang till it either gets the lock or exceeds the time_out default?



      Thanks.



      Script A



      lock tables mytable write;
      ...do some reading....
      ...do some writing....
      unlock tables;


      Script B



      ...do some writing without a lock....






      mysql






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










      asked Nov 22 '18 at 2:49









      Daniel KaplanDaniel Kaplan

      318210




      318210
























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