Apex/Data Redaction Conflict
Reports containing SQL expressions with redacted columns will break in versions 18c higher. Worth checking before Apex upgrade. Continue Reading
18c
ORA-07445 in qksqbCheckProp() with Inline Hint
Inline hint can cause ORA-07445 in 18c and 19c. Continue Reading
WRH$_SYSMETRIC_HISTORY_INDEX UNUSABLE After 18c Upgrade
The index WRH$_SYSMETRIC_HISTORY_INDEX became UNUSABLE a couple of days after the Oracle 18c upgrade Continue Reading
Cost-Based OR Expansion Transformation
OR expansion not working properly in Oracle 12.2 Continue Reading