EXA_DBA_PROFILE_LAST_DAY

This system table contains all profiling information of sessions with activated profiling. For more details, see Profiling.

Only users with the SELECT ANY DICTIONARY system privilege have access to the table.

Column Name Description
SESSION_ID ID of the session
STMT_ID Serially numbered ID of statement within a session
COMMAND_NAME Name of the statement (for example, SELECT, COMMIT, or MERGE)
COMMAND_CLASS Class of statement (for example, DQL, TRANSACTION, or DML)
PART_ID Serially numbered ID of the execution part within the statement
PART_NAME Name of the execution part
PART_INFO Extended information of the execution part. For example:
  • GLOBAL: Global action (for example, global join)
  • EXPRESSION INDEX: Non-persistent join index which is built on an expression
  • NL JOIN: Nested loop join (cross product)
  • REPLICATED: Replicated object (for example, small tables)
  • TEMPORARY: Temporary object (for intermediate results)

  • WITH ZONEMAP: Zone map was used during operation
OBJECT_SCHEMA Schema of the processed object
OBJECT_NAME Name of the processed object
OBJECT_ROWS Number of rows of the processed object
OUT_ROWS Number of result rows of the execution part
DURATION Duration of the execution part in seconds
CPU CPU utilization in percentage of the execution part (averaged over the duration)
TEMP_DB_RAM_PEAK Usage of temporary DB memory of the execution part in MiB (overall nodes, maximum over the duration)
PERSISTENT_DB_RAM_PEAK Usage of modified, persistent DB memory of the execution part in MiB (overall nodes, maximum over the duration)
HDD_READ Hard disk maximum read ratio in MiB per second (per node, averaged over the duration)

If this value is larger than 0, then data had to be loaded into the main memory.
HDD_WRITE Hard disk maximum write ratio in MiB per second (per node, averaged over the duration)

This column reflects only the data written during a COMMIT. For other statements its value is NULL.
LOCAL_READ_SIZE Total size of data read from local (non-cache) storage in MiB (sum over all nodes)
LOCAL_READ_DURATION Time spent reading data from local (non-cache) storage in seconds (maximum over all nodes)
LOCAL_WRITE_SIZE

Total size of data written to local (non-cache) storage in MiB (sum over all nodes).

This column reflects only the data written during a COMMIT. For other statements its value is NULL.
LOCAL_WRITE_DURATION

Time spent writing data to local (non-cache) storage in seconds (maximum over all nodes).

This column reflects only the time spent writing data during a COMMIT. For other statements its value is NULL.
CACHE_READ_SIZE Total size of data read from cache in MiB (sum over all nodes)
CACHE_READ_DURATION Time spent reading data from cache in seconds (maximum over all nodes)
CACHE_WRITE_SIZE Total size of data written to cache in MiB (sum over all nodes)
CACHE_WRITE_DURATION Time spent writing data to cache in seconds (maximum over all nodes)
REMOTE_READ_SIZE Total size of data read from remote storage in MiB (sum over all nodes)
REMOTE_READ_DURATION Time spent reading data from remote storage in seconds (maximum over all nodes)
REMOTE_WRITE_SIZE

Total size of data written to remote storage in MiB (sum over all nodes).

This column reflects only the data written during a COMMIT. For other statements its value is NULL.
REMOTE_WRITE_DURATION

Time spent writing data to remote storage in seconds (maximum over all nodes).

This column reflects only the time spent writing data during a COMMIT. For other statements its value is NULL.
NET Network traffic ratio in MiB per second (sum of send/receive, per node, averaged over the duration)
REMARKS

Any additional information such as, index type and columns, or index used for a join.

Some examples for the REMARKS column:

  • Join descriptions
  • Column which is read for a filter
SQL_TEXT Corresponding SQL text