Error
Error Code: ORA-28554

Oracle ORA-28554: Out of Cursors

📦 Oracle Database
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Description

The ORA-28554 error indicates that the pass-through SQL has exceeded the maximum number of allowed open cursors. This typically occurs when applications using pass-through SQL connections do not properly close cursors after use, leading to resource exhaustion.
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Error Message

pass-through SQL: out of cursors
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Known Causes

3 known causes
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Unclosed Cursors
The most common cause is failure to close cursors after executing pass-through SQL statements. Leaving cursors open consumes resources and eventually exceeds the limit.
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High Cursor Usage
The application is executing a large number of concurrent pass-through SQL queries, each requiring a cursor. This can quickly exhaust available cursors.
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Configuration Limits
The database configuration might have a low maximum cursor limit configured. Review and adjust database parameters if necessary.
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Solutions

Coming Soon

Detailed step-by-step solutions for this error are being prepared. In the meantime, try these general troubleshooting tips:

General Troubleshooting Tips

  • Check the error message carefully for specific details
  • Review recent changes that might have caused the error
  • Search for the exact error code in the official documentation
  • Check log files for additional context
  • Try restarting the application or service

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