repair table

Transferred from: http://lxw1234.com/archives/2015/09/484.htmKeywords: Hive replication tableThere are times when the need to replicate tables is encountered in hive, which refers to duplicating table structures and data.If it is for a

A strange MySQL problem recently occurred when querying data inconsistency in MySQL. Different select statements are used to query all the data sets.Number of records. Select * gets four records, and select field gets three records. For specific

When we use PHPMyAdmin to browse the database, we sometimes find that the Collation items of some MyISAM tables are displayed as "inUse ", which indicates that the table is damaged. Even if "inThe word "use" cannot indicate that the table is in good

Micro Blog: http://xsboke.blog.51cto.com Xiaosheng Q: 1770058260 ------- Thank you for your reference. If you have any questions, please contact us. MySQL # Mysql Data Import and Export # The queried data is exported to the CSV file select *

1. Table Damage Reason analysis The following are common causes of MySQL table corruption:1, the sudden loss of power to the server caused data file corruption.2, forced shutdown, did not first shut down the MySQL service.3. The mysqld process was

Resources:Http://blog.chinaunix.net/uid-405749-id-28215.htmlHttp://www.cnblogs.com/xiaoit/p/3990304.htmlHttp://www.jb51.net/article/25873.htmThe process of recovering a damaged table on an online operation:mysql> Check table tbl_referer05;+----------

There are 3 ways to fix MySQL database:1. mysql Native SQL command: RepairExecute the Repair TABLE SQL statementSyntax: REPAIR TABLE tablename[,tablename1 ...] [Options]Example: mysql> use database xxx;mysql> Repair Table *;2. Using MySQL's own

Wait problems caused by--mysql flush-------------------------------2014/07/13PrefaceIn the actual production environment, a large number of SQL statements are sometimes found to be in waiting for table. State, sometimes it may seem confusing, this

Recently, server problems have caused the company to lose a lot of website data. Smart softwares also lost a lot. I have been busy fixing data over the past few days. When we restore a customer's data today. A consistent problem was found. Multiple

Recently, a very strange MySQL problem occurs. Using different select statements to query all datasets produces different records. Select * gets four records, and select field gets three records. For details, refer to the following query results:

In the PHP + MySQL background, some program pages do not display content. An error is prompted and must be fixed. Open phpmyadmin and select the database. Three tables are displayed as "in use ". After selecting the check box, "repair table" will be

Bad blocks of ORACLE data files can be divided into physical and logical Bad blocks. Physical Bad blocks (or media Bad blocks) mean that the block format itself is bad, and the data in the block has no meaning. The logical bad block refers to the

Incompatible upgrade points 1. the character set or collation has changed in MySQL 5.1.21/5.1.23 and 5.1.24. Therefore, you may need to redo the index during the upgrade process.Section 2.12.3 specifies the specific situation in which the index

Bad blocks of Oracle data files can be divided into physical and logical Bad blocks. Physical Bad blocks (or media Bad blocks) mean that the block format itself is bad, and the data in the block has no meaning. The logical bad block refers to the

Recently, a very strange MySQL problem occurs. Using different select statements to query all datasets produces different records. Select * gets four records, and select field gets three records.For details, refer to the following query results:[SQL]

Solution for inconsistent query results of all MySQL datasets bitsCN.com Recently, a very strange MySQL problem occurs. using different select statements to query all datasets produces different records. Select * gets four records, and select field

MySQL import and export the entire database as a file When using, be sure to note whether it is in the import state, if it is an import operation, you must first back up the database, otherwise the data will be emptied. /*

This article mainly describes how to correctly repair damaged MySQL data tables. we all know that power failure or abnormal shutdown may lead to MySQL (the best combination with PHP) database error. There are two main methods: one is to use MySQL

Analyze table When optimizing SQL statements, the optimizer of MySQL needs to collect related information, including the cardinality of the table.Hash degree), which indicates the number of different values in the column corresponding to an index -

It is a common problem to have a database error with MySQL (the best combination of PHP) with a power outage or an abnormal shutdown. There are two ways, one way to use the SQL statements of Check table and repair table for MySQL (and the best