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1. What issues are resolved?A, when we do ERP upgrade, many of the old personalized fields or tables are migrated to the new library,Steps are generally compared with datacompare (due to the large ERP cubby, not necessarily able to load, but also need a bunch of settings).The generated fields are also not inserted into the Data_dict,def_table,def_table table, and no description is generated. Some people may not use this tool directly. This consumes time to do some repetitive work, wasting energy
Problem description: rake aborted occurs when the rails project executes rake DB: migrate data migration,
Solution: Check the prompt and run bunlde exec rake DB: migrate. The migration is successful!
Knowledge added: difference in using bundle exec rake DB: migrate (derived from: http://www.iteye.com/problems/73157)
① Bundle provides a sandbox-like mechani
Oracle partition table data migration and Management Automation Process
The following process is centered on the company's Oracle Database runtime environment. It is mainly written to achieve automation.Process completion tasks include1. automatically add partitions from the previous day to partition by Time2. automatically delete T_partition_1 Partition Table 6 days ago, T_partition_1 is the current table3
the intranet IP can not connect to the database, reported IO exception: The Network Adapter could not establish the connection. So can only be replaced with localhost, but this can not be debugged, good pit. My URL string is: Jdbc:oracle:thin: @localhost: 1521:ORCL. The above exception resolved, also reported:Ora-28040:no matching authentication protocol. There are two ways to solve the problem on the Web, update the JDBC driver and modify the sqlnet.allowed_logon_version.I ended up anyway by a
large amount of data. For this kind of error, this time the processing method is to expand the table field length first, and then import the data. To view details of the load import, you can use the DB2 list utilities Show Detail2, change the field type problemDb2v8 seemingly can not directly modify, can only first delete the field and then add the field, helpless, the field above the index .... Only big s
Background: The company to the Test library mysql5.1.33 above the data migrated to mysql5.5.33 above, 5.1 above the table is mostly MyISAM table, in order to make the data consistent, with the--lock-all-table optionPrecautions:1, you can pilot the permission table, so that you can move the business to the successful part of the library above2, the guide before the Binlog to be banned, so that the speed of t
Migrate data from an existing MongoDB replica set to a new shard cluster and design three migration scenarios.
Scenario One: Synchronize the data first, then set up the Shard cluster, and finally configure the Shard cluster.
export the data that needs to be migrated, set up the first replica set, import the
Mysql database migration: only data with specified conditions is migrated. how can this problem be achieved? Please !!!! Don't miss the chance to score when the big shrimps pass !!!!, First, let's talk about how to migrate data from my SQL database without specifying conditions, and migrate only data with specified con
Environment:1. Two WIN10 computers2, MySql5.6Process:1, the original computer to stop the MySQL service2. Copy the C:\ProgramData\MySQL\MySQL Server 5.6\data folder to the target computer D:\MysqlData3, the target computer to stop the MySQL service4. Modify the target computer C:\Program files (x86) \mysql\mysql Server 5.6\my.ini file:DataDir instead:Datadir= "d:/mysqldata/data/"5. Target PC d:/mysqldata/
[ERROR] [FATAL] Innodb:tablespace ID is in the data dictionary and in file./MYSQL/INNODB_INDEX_STATS.IBD It's 696!--Test directly copy the. ibd file in the past (this method fails because tablespace_id is inconsistent)Mysqld_safe--defaults-file=/usr/my-new.cnf --QicuSummarize:For InnoDB each table has its own tablespace, if only the. ibd file (and of course the table's definition statement). You can restore the da
Tags: io SP file data on 2014 problem BS ADThese two days have been tangled in the Sybase database DAT file import problem, looked up a bunch of data, slowly summed up their own little experience.Personally think DAT file import must meet the requirement is that the new database space size must be larger than the size of the original database, I now import a 6G dat file, its original database size of 85G, T
Thunder Fighter is the latest fiery air combat shooting game, Liu said: Please carry our Thunder fighter for cross-platform data migration-the table space can be transmitted, but also hesitate to board, please immediately boarding, open the Endless challenge mode!You can use the Transportable table space feature to copy a collection of tablespace from one database to another.The transportable representation
: Username/password @ service nameQuery: Querying statementsCharSet: Character Set UTF-8, the character set for exporting GBK character set data in Oracle to text format is UTF-8Text: Export file type, must be mysqlins, become the file data automatically generated insert MySQL statement "' symbol, for example: ' Zhang San 'Format: MySQLFile: Export Data File Save
This article mainly describes the IBM DB2 data replication and migration methods. The following methods have been tested in the Environment IBM x346, 3.2G × 2, 4G, RAID 1, in DB2 V8.2.4, Win2000 Adv Server, and DMS tablespaces, the data load speed is about 60-entries/min.
Background:
You need to change the tablespace of the database, or migrate
Hello, the following is the eighth lecture address of my oracle series training courses. This lecture mainly describes how to migrate databases across platforms!
The main content involved is:
1: describes and demonstrates how to migrate a database on a windows operating system to a linux server, and convert the data file storage from the original NTFS file system to the storage on the ASM disk.
2: Describes the final work of the series after the
Project History Legacy/usr/lib/mysql all data files, before using Debian under the mysql5.1 MyISAM engine, now the machine is Ubuntu, only the mysql5.5,mysql5.6 default InnoDB engine, the process of recovery.Install mysql5.5 on 1.Ubuntu, copy all data files under/usr/lib/mysql to the corresponding directories in Ubuntu system, and set file permissions and owner.Start sudo service MySQL startError,/var/log/m
intermediate database).II) Stop the intermediate database, back up the intermediate database's Ibdata1 file, and then replace the Ibdata1 file.III) add a row innodb_force_recovery=4at the end of the my.ini of the intermediate database.IV) start the intermediate database and migrate the target database of the intermediate database to the target by means of a tool or command line.v) Intermediate database fallback processing (that is, commenting out the innodb_force_recovery=4, fallback ibdata1 fi
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