MySQL

Note: The content of this article involves modifying NTFS disk permissions and setting security policies, and make sure that you understand the possible consequences of the operation before you make any changes. Note: The content of this article

ERROR 2002 (HY000): Can ' t connect to the local MySQL server through socket '/var/lib/mysql/mysql.sock ' (2) Workaround: 1 The default Mysql.sock file is in the/tmp directory.2 We establish a soft connection,

If you forget the MySQL root password, you can reset it in the following ways: 1. Kill off the MySQL process in the system; 2. Use the following command to start MySQL, to do not check the permissions of the way to start;

mysql| Solution | data | database | problem troubleshoot Linux under Tomcat connection MySQL database Under Linux, developing a Web application that is always unsuccessful when calling a database, if you write a class individually and compile and

J2ee|mysql This period of time in learning J2EE&EJB, I am most interested in doing JDBC EJB, but because I do not have the default Cloudscape on hand, also dare not install Oracle, my machine too, run the EE is full load operation, can not add big!

MySQL assumes that your startup script is/etc/init.d/mysql So find the $bindir/safe_mysqld line, plus the following parameters -O max_connections=1000-o wait_timeout=500-o interactive_timeout=500 Of course, it has to be based on your actual

Connection|mysql Remember that there was a netizen here asked how to modify the maximum number of MySQL connection problem, as if not get a complete answer (I remember as if), today suddenly received a Netizen csdn sent an e-mail to ask this

Environment: MySQL Server 5.1 + Navicat for MySQL 8.2 Problem: 121 error occurred while modifying foreign key deletion Solve: Change the foreign key name to another name. Error message Reference: Error 121 This is the name of the external

Environment: MySQL Sever 5.1 + MySQL command line tool Problem: Using the command line to query the data in the database appears garbled. Solve: Set names UTF8; -is equivalent to set Character_set_client=utf8; Set

Today, developers in debugging Java programs, found that the MySQL reported the following questions: Java.lang.IllegalArgumentException:Packet is larger than Max_allowed_packet from server configuration of 1048576 bytes At

The following error was reported when deleting data from a table in MySQL: mysql> delete from upload_images; ERROR 1175 (HY000): You are using safe update mode and you tried to update a table without a WHERE that uses a KEY column mysql> show

Haproxy+keepalived+abstractroutingdatasource of the reading and writing separation cluster scheme In the company to do the MySQL cluster solution, after several times of analysis and discussion, as well as performance test analysis. found that the

mysql5.5 performance Optimization-Memory table The memory table is divided into 2 kinds, but in common, after the database has been reset, all the data in memory is lost, the function of the memory table is partially limited, some properties cannot

MySQL replication (Replication) works: The slave end is replicated through the network to the slave end by using the binlog of the master end, and then through the SQL thread to parse the logs in the Binlog and apply them to the database. 1)

Today, we developed a SQL statement on the test server with phpMyAdmin to import it into the beta database, but the beta server did not have the phpMyAdmin software installed on it, and I saw the process of deleting the data table. Using MySQL

The "./ib_logfile0 is of different" error occurs when a full backup of the MySQL database is made with the Xtrabackup tool today, with specific log information as follows: The first time I query Baidu and Google did not find the corresponding

User question: For MySQL master-slave replication structure, how to let slave filter delete operation. Problem analysis: This problem corresponds to the preservation of all records, including the records of Deletes. The granularity of the

For MySQL information_schema table, actually just some views, is not a real table, so there is no actual file, not even a database directory. Additions and deletions should not be done in such a way that it is not possible to set up triggers. This

Back_log: The operating system maintains a listening queue, which is done before the MySQL thread is connected If you have a lot of connections and there are connection refused error prompts, adding this value is certainly true. Skip-networking:

Time: 2013-04-18 11:32 Failure: The database server restart without cause, when the slave started, the report relay_log damaged, SQL thread cannot proceed. Cause of failure: OS reboot may cause Relay_log to not sync properly The solution at this