NVL Cardinality in Oracle 21c
Reasons for not using NVL for filtering NULL values. Join cardinality estimate improvement in Oracle 21c. Continue Reading
Month: February 2022
Data Loss After Plugging a PDB
ORA-00600 [25027] in PDB. Tracing buffer reads. kcbgtcr Oracle C function. Continue Reading
ORA-00600 on Materialized View Refresh
Oracle internals for understanding cryptic error messages during materialized view refresh Continue Reading