No. 28000 ~ 28999

28009: Unable to access LONG or LOB columns through DBlink.

Cause An attempt was made use DBlink to refer to an object with LONG or LOB columns.

Action Modify the query.

28010: Maximum number of group_ids (255) has been reached.

Cause No more than 255 group_ids are allowed at a time.

Action Modify the query.

28011: Pivot type expression %1$s cannot be used here.

Cause The pivot type expression was used in an invalid location.

Action Modify the query.

28012: Index \'%1$s.%2$s\' is in an unusable state.

Cause DML statements cannot be executed on an unusable index.

Action Change the condition of the index.

28013: Index \'%1$s.%2$s\' is in an unusable state.

Cause Index hints cannot be specified on an unusable index.

Action Change the condition of the index.

28014: Duplicate outline.

Cause The outline name cannot be used because the name is already in use.

Action Use another outline name.

28015: Column \'%1$s.%2$s\' has invalid statistics.

Cause Column \'%1$s.%2$s\' has invalid statistics.

Action Delete or regather statistics using the dbms_stat package.

28016: Feature not yet implemented.

Cause This feature is not yet implemented.

Action Check whether a feature which is not yet implemented was used.

28017: Logical error in transformer.

Cause

Action

28018: Invalid ndv on column \'%1$s.%2$s\' frequency histogram (Current value: %3$d).

Cause Each frequency histogram ndv value must be 0 or 1.

Action Delete or regather statistics using the dbms_stats package.

28019: Maximum number of group keys(128) has been reached.

Cause No morder than 128 group keys are allow for parallel group by.

Action Set the parameter _OPT_ENABLE_GROUP_BY_PARALLEL to N.

28020: Too many expressions used.

Cause Too many expressions are used, which may cause out-of-memory in optimizer.

Action Reduce the number of expressions in the SQL statement, or adjust the value of parameter _OPT_BM_MEMORY_LIMIT_RATIO (if OOM is not expected).