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Today, when doing the project, there are two entities: style, brand relationship is many-to-many relationships, the realization of the function is: through the selection of styles, showing the style of all brands. The HQL statement is as follows:From Brand as b where b.styles.styleid=?This exception error occurred at runtime: Org.hibernate.QueryException:illegal attempt to dereference collection. through data found in the above hql statement, Br

MySQL Execution error:-Expression #1 of ORDER by clause and contains nonaggregated column ' INFORMATION_SCHEMA clause are not in the GROUP by. PROFILING. SEQ ' which is not functionally dependent on columns in GROUP by clause; This was incompatible with sql_mode=only_full_group_bysudo vim/etc/mysql/conf.d/mysql.cnf[Mysqld] Sql_mode=strict_trans_tables,no_zero_in_date,no_zero_date,error_for_division_by_zero,no_auto_create_ User,no_engine_substitutionsu

You can see that the default number of open files is limited to 1024 by executing the following command on Ubuntu server.$ ulimit-n1024Edit the/etc/profile configuration file and add a line at the end:Ulimit-shn 65535To have the configuration take effect:$ sudo source/etc/profileSudo:source:command not foundWhat happens when we execute the ULIMIT-SHN 65535 command directly?$ ulimit-shn 65535-bash:ulimit:open Files:cannot Modify limit:operation not permitted$ sudo ulimit-shn 65535Sudo:ulimit:comm

1. Enter Group Policy configuration by running Gpedit.msc ( requires WIN10 Professional Edition, Home Edition no Solution ), Policy path: "Computer Configuration", "Administrative Templates", "System", "Credential Assignment", setting Name: Encrypting Oracle Remediation , select the enabled and vulnerable option, and save the app　　Windows----------WINDOWS10 Remote Desktop Connection failed, reported CREDSSP encryption Oracle Fix