Database Encoding Configuration

Check out our Configuring Database Character Encoding page.

MS SQL Server Articles

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  Unable to start Confluence or some plugins are disabled upon startup
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  How to upgrade active objects columns from varchar to nvarchar in SQL Server
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  Database Deadlock on Microsoft SQL Server in Confluence
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  Chinese characters appears as question marks
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  Cannot Connect Confluence to MS SQL Server Using Force Encryption
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  Unable to Connect to SQL Server Due to Error: 18456, Severity: 14, State: 12
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  How to fix the collation of a Microsoft SQL Server Confluence database
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  Unable to upgrade plugins due to Length of LOB data in SQL server
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  ‘*.dbo.CONTENT is not supported’ error when editing a page in SQL Server environment
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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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  Database deadlock on Microsoft SQL Server
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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

MySQL Articles

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  Upgrade to Confluence with MySQL Fails Due to java.sql.SQLException: Incorrect string value
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  Unable to Upgrade or Save Pages Due to Table is Full Error
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  Unable to Create a New Space
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  Encoding Problem Due to Unsupported Database Configuration
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  Getting a 'Duplicate key or integrity constraint violation' During XML Import
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  Confluence XML restore fails because the packet for query is too large
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  Cannot Update Universal Plugin Manager (UPM) due to NO_AUTO_VALUE_ON_ZERO set on MySQL's sql_mode parameter
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  'Got error 134 from storage engine' Error Due to MySQL Table Corruption
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  'com.mysql.jdbc.exceptions.MySQLNonTransientConnectionException' when Installing Confluence on MySQL on OS X 10.4 Due to MySQL Networking Configuration
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  Failed to install plugin due to Failed to install OBR jar artifact error message
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  Unable to start Confluence due to unsupported version of MySQL
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  Unable to create a decision with the Decision Blueprint
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  Not Able to Restore Confluence XML Backup Data Due to 'Duplicate entry' Error
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  Attachment upload failed with 'Communications link failure during commit()' error
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  Database Troubleshooting for MySQL

Postgres Articles

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  PostgreSQL Database Optimization
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  Confluence unable to connect to PostgreSQL due to unconfigured pg_hba.conf file
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  Manually upgrading the PostgreSQL version of your Amazon RDS database from 9.6 to 10
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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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  Manually upgrading the PostgreSQL version of your Amazon RDS database from 9.5 to 9.6
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  Health Check: Clustered Databases
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  Database Troubleshooting for PostgreSQL
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  Unable to Setup Postgres Due to Incorrect Driver
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  Getting ZipException Error when Installing a New Plugin Due to Postgres 9 Configuration
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  Site Import Fails on Weblogic when Using PostgreSQL
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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

Oracle Articles

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  Upgrade Failed Due to "java.sql.SQLException: Conversion to String failed"
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  Confluence upgrade fails due to "java.sql.SQLException: ORA-12899: value too large for column"
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  Unique Constraint Violation Due to Value too Large for Column
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  Confluence Operations Fail Due to ORA-01536 or ORA-01653
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  java.io.IOException: ORA-01652: unable to extend temp segment
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  Upgrade failed with net.sf.hibernate.HibernateException: JDBC Driver class not found: oracle.jdbc.OracleDriver
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  Unable to connect to Oracle database when starting Confluence
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  Confluence Fails with ORA-01555 Error
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  Cannot Upgrade Confluence on Oracle if the Database is Shared
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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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  Database Troubleshooting for Oracle
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  Oracle 12c Result Cache feature can cause higher than normal CPU usage in database server
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  Upgrade to version 6.1.x Failed With Error "ORA-01000: maximum open cursors exceeded"
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  Confluence Fails to Start due to Stopped Oracle's Database Listener

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