Error
Error Code:
ORA-28606
ORA-28606: Bitmap Index Fragmentation
Description
This error indicates that a block is too fragmented to build a bitmap index. It typically occurs when the maximum slot allowed is set too low, preventing the index from being created due to insufficient space.
Error Message
ORA-28606: block too fragmented to build bitmap index ( string , string )
Known Causes
3 known causesInsufficient Slot Size
The maximum slot size allowed for the bitmap index is too small to accommodate the number of rows in the block.
High Row Density
The table has a high density of rows within a single block, exceeding the bitmap index's capacity.
Fragmentation Issues
The underlying table is heavily fragmented, leading to blocks that are difficult to index.
Solutions
Coming SoonDetailed 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