Fast Retrieval of DYNAMIC_SAMPLING_RESULT Information
Correlating an active dynamic sampling trace with the data dictionary Continue Reading
12.2
Data Redaction and Virtual Columns
Data Redaction limitation in Oracle 12.2 Continue Reading
Join Cardinality Misestimate (“Adjustment-to-Zero Issue”) in Oracle 12.2 – Part 2
Enhanced example of join cardinality misestimate caused by adjustment-to-zero issue Continue Reading
JOIN CARDINALITY MISESTIMATE in Oracle 12.2
Wrong join cardinality estimate due to adaptive dynamic sampling Continue Reading
Corruption after “alter table move” in Oracle 12.2
“Alter table move” might cause a corruption in an Oracle 12.2 databases if user defined types are used. Continue Reading
PL/SQL Exception Handling Performance Degradation in Oracle 12.2
Potentially a huge performance issue with PL/SQL exception handling in 12.2 Continue Reading
Cost-Based OR Expansion Transformation
OR expansion not working properly in Oracle 12.2 Continue Reading