mysql error

ERROR 1215 (HY000): Cannot add foreign KEY constraintRecently encountered this error in the construction of the table, and then found the next find a solution, record:Two tables were originally to be built:CREATE TABLE department (ID int,name

MySQL Error injection principle analysis (count (), Rand (), GROUP by)0x00 questionshave been using the MySQL Database error injection method, but why the error?Baidu Google know a bit, found that everyone is the official website of the conclusion

Problem Description:after starting the transaction, the Java code makes a query, then inserts, which is reported at this time:        java.sql.SQLException:could not retrieve transation read-only status serverresolution process:View MySQL 's things

Before the solution, you have to explain why there is an error, emoji expression occupies 4 bytes, but MySQL database UTF-8 encoding can only store 3 bytes, it will cause storage not to go inHow to troubleshoot emoji storage issuesMySQL UTF8 encodes

MySQL Error last_sql_errno:1032show slave status \GLast_SQL_Errno: 1032Last_SQL_Error: Could not execute Update_rows event on table 35lq_db.dr_planstats_h; Can‘t find record in ‘dr_planstats_h‘, Error_code: 1032; handler error HA_ERR_KEY_NOT_FOUND;

Client login to MySQL server via Navicat error: 1045-access denied by user ' Zabbix '@192.168.0.107 using Passwod:yesSolution:Server-side login MySQL:Use MySQL;Check the Select User,host from user first;The client's IP is not found in the

If you encounter the exception prompt in the client tool such as Dbeaver:At this point, you need to log in to the server and set up your MySQL and restart MySQL as follows Vim/etc/mysql/my.cnf Configure the bind-address inside = 127.0.0.1

After installation, mysql-h localhost-u root-p time error,ERROR 1045 (28000): Access denied for user ‘root‘@‘localhost‘ (using password: YES)First step: Delete the Ib_logfile0 and ib_logfile1 files under/usr/local/mysql/data/.Step two: Stop the

1, Create/modify file/etc/my.cnf, add/modify at least one line [MySQL] [Client]socket =/tmp/mysql.sock#在这里写上你的mysql. Sock the correct position, usually not under/tmp/or under/var/lib/mysql/2.Specify an IP address to connect to MySQL using TCP

Let's start with a brief introduction.[ Note 1] Installation path for MySQL under Mac:/usr/local/mysql-5.1.63-osx10.6-x86_64The data file of the database is in the folder of the directory;The command file is in the Bin folder.[ Note 2] The method of

Windows:1. Admin login system, stop MySQL service or end mysqld-nt process2. Go to the command line and come to the MySQL installation directory. Assuming that the installation directory is d:\mysql\, CMD enters the command line3. Run

Problem Description:After starting the transaction, the Java code makes a query, then inserts, which is reported at this time: Java.sql.SQLException:could not retrieve transation read-only status serverresolution process:View MySQL's things

Start MySQL Error:ERROR 2002 (HY000): Can ' t connect to local MySQL server through socket '/var/lib/mysql/mysql.sock ' (2)1. Check the/ETC/RC.D/INIT.D/MYSQLD status first to see if M y S Q L has been started.Also see if it is a permission issue.2.

Error:Cdbcommand failed to execute the SQL statement:sqlstate[hy000]: General error:1300 Invalid UTF8 character string: ' \xbf\ XA5 'Workaround:$currentPrice = $currentPrice * 1; = = $currentPrice A number that was originally a string, resulting

When programming to access the MySQL database, the time zone error is reported as follows:The server time zone value ' й ' is unrecognized or represents more than one time zoneThere are usually two workarounds:First, add the SERVERTIMEZONE=UTC after

I recently installed MySQL 5.7.12 with the command before installing MySQL 5.7.11 Bin/mysqld--initialize--user=mysql Can be very well initialized, but used in 5.7.12 Version actually error [Email protected] mysql-5.7.12]#

Query statement:SelectStudent.stu_name,Max(Score. Number) fromStudentInner JoinScore onstudent.stu_id=score.student_idInner JoinCourse onscore.course_id=course.cou_idInner JoinTeacher

ERROR 1045 (28000): Access denied for user ' ODBC ' @ ' localhost ' (using Password:no)ERROR 1045 (28000): Access denied for user ' ODBC ' @ ' localhost ' (using Password:yes)Workaround for the above two errors under WindowsTools/Materials

There are sometimes mysql.sock location errors under MySQL, which prevents the database from being linked.Mac error When:First modify the MY.CNFLocation under/ETC/MY.CNF, if not, go to/usr/locate/mysql version/my.cnf under Change, and then copy

1.1.1 phenomena Perform the database operation, and the following error message appears: ERROR 1062 (23000): Duplicate entry ' 0 ' for key ' PRIMARY ' 1.1.2 cause The problem table before the primary key is not set to automatically grow the