Database Encoding Configuration

Check out our Configuring Database Character Encoding page.

HSQL Articles

MS SQL Server Articles

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  'Foreign key has implicit reference to object which does not have a primary key defined on it' error is thrown during Confluence upgrade
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  Unable to install plugins using MS SQL due to transaction log exceptions
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  Getting 'ResultSet can not re-read row data' SQLException Error Due to jTDS 1.0.2
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  Users cannot log in due to length of active column
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  Migrating attachments from database to file system fails with transaction log full exception
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  Login Fails When Using JIRA for User Management Due To SQL Server Configuration
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  How to upgrade active objects columns from varchar to nvarchar in SQL Server
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  Cannot Restore XML Backup Due to Invalid Page Title when Using MS SQL
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  Database Deadlock on Microsoft SQL Server in Confluence
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  Unable to Add Comment due to SQL Server Error (AONOTIFICATION table)
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  Getting 'generate could not read a hi value java.sql.SQLException Invalid object name 'hibernate_unique_key' SQLException Error
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  Repairing a Damaged Microsoft SQL Server Database
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  Confluence throws an 'Invalid object name BANDANA' error
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  Can't start or upgrade Confluence due to an error with MS SQL Server database collation
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  Confluence Database Setup Fails for MS SQL Server with Connection Refused

MySQL Articles

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  ページを保存すると Unable to Communicate with Server メッセージが表示される
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  Getting 'can't create or write to file' SQLException Error When Browsing a Space
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  Getting 'Duplicate entry' when Using MySQL on OS X
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  Getting 'Invalid use of group function' SQLException Error on MySQL 4.x
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  Unable to create a decision with the Decision Blueprint
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  Database connection issues due to "Queries leading to data modification are not allowed"
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  'Got error 134 from storage engine' Error Due to MySQL Table Corruption
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  Getting a 'Duplicate key or integrity constraint violation' During XML Import
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  Unable to Create a New Space
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  Confluence will not start using MySQL 5.1.5+ with STATEMENT binary logging
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  Cannot Restore from XML Backup when Confluence is Backed by MySQL
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  Login After a Long Inactivity on Confluence Fails with 'com.mysql.jdbc.CommunicationsException Communications link failure' CommunicationsException Error
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  Getting 'Communications link failure' CommunicationsException Error when Making XML Backup
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  Characters appear as question marks using MySQL
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  MySQL の最大許容パケット数を超過

Postgres Articles

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  Site Import Fails on Weblogic when Using PostgreSQL
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  Getting a PSQLException Error 'An IO error occured while sending to the backend' Due to Corrupt Postgres Database
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  Unable to Update Plugin Due to 'FATAL no pg_hba.conf entry' in PostgreSQL
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  Confluence is displaying pages slowly or showing 503 errors with PostgreSQL
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  Confluence unable to connect to PostgreSQL due to unconfigured pg_hba.conf file
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  Getting ZipException Error when Installing a New Plugin Due to Postgres 9 Configuration
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  Unable to Setup Postgres Due to Incorrect Driver
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  Database Troubleshooting for PostgreSQL

Oracle Articles

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  Upgrade failed with net.sf.hibernate.HibernateException: JDBC Driver class not found: oracle.jdbc.OracleDriver
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  Seeing Inverted Question Marks with Oracle
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  Pre-existing Oracle indexes halt upgrade to Confluence with error ORA-01408
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  Confluence is unable to start because Oracle database user account is locked
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  Confluence Operations Fail Due to ORA-01536 or ORA-01653
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  Clicking on Notifications Generates a System Error
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  Confluence Fails to Start due to Stopped Oracle's Database Listener
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  Confluence Upgrade Fails with ORA-02298 Parent Keys Not Found
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  Unable to Save Page Edits Using Oracle DB (ORA-01691: unable to extend lob segment)
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  Confluence Startup Failed or Scheduled Job Failed Due to ORA-28001
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  Oracle 8i 24-hour time format
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  Confluence upgrade fails with ORA-01408 error
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  Unable to Configure Oracle Data Source in Websphere
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  Unable to Install Oracle on Websphere Due to Classloader Preferences
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  Cannot Upgrade Confluence on Oracle if the Database is Shared

Known Issues for Supported Databases

Database Troubleshooting for PostgreSQL
Database Troubleshooting for Oracle
Database Troubleshooting for MySQL
Database Troubleshooting for SQL Server
Database Troubleshooting for DB2

For a list of supported databases versions, please refer to our Supported Platforms page.

Open JIRA Features and Bug Reports