This
monitor system table contains information on executed SQL statements and access methods.DESCRIPTION column
Value |
Explanation |
SQL commands |
Number of executed SQL statements |
PREPAREs |
Number of parsed SQL statements |
EXECUTEs |
Number of executions of previously parsed SQL statements |
COMMITs |
Number of executed COMMIT statements |
ROLLBACKs |
Number of executed ROLLBACK statements |
LOCKs and UNLOCKs |
Number of executed LOCK and UNLOCK statements |
SUBTRANS BEGINs |
Number of SQL statements for opening a subtransaction |
SUBTRANS ENDs |
Number of SQL statements for concluding a subtransaction |
SUBTRANS ROLLBACKs |
Number of SQL statements for resetting a subtransaction |
CREATEs |
Number of executed SQL statements for creating database objects |
ALTERs |
Number of executed SQL statements for altering database objects |
DROPs |
Number of executed SQL statements for dropping database objects |
SELECTs and FETCHes |
Number of executed SQL statements for accessing data |
SELECTs and FETCHes, rows read |
Number of rows considered for accessing data |
SELECTs and FETCHes, rows qual |
Number of rows considered for the access of data satisfying conditions |
INSERTs |
Number of executed SQL statement for inserting rows |
INSERTs, rows inserted |
Number of rows inserted |
UPDATEs |
Number of executed SQL statements for updating rows |
UPDATEs, rows read |
Number of rows considered for updating data |
UPDATEs, rows updated |
Number of rows updated |
DELETEs |
Number of executed SQL statements for deleting rows |
DELETEs, rows read |
Number of rows considered for deleting data |
DELETEs, rows deleted |
Number of rows deleted |
Internal DBPROC calls |
Number of DBPROCEDUREs executed |
Internal trigger calls |
Number of trigger calls |
Primary key accesses |
Number of search operations with direct access via the key |
Primary key accesses, rows read |
Number of rows read by direct access via the key |
Primary key accesses, rows qual |
Number of rows read by direct access using the key, satisfying conditions |
Primary key range accesses |
Number of search operations with accesses within a range of keys |
Primary key range accesses, rows read |
Number of rows read within a range of keys |
Primary key range accesses, rows qual |
Number of rows read within a range of keys, satisfying conditions |
Index accesses |
Number of search operations with accesses to an index |
Index accesses, rows read |
Number of rows directly accessed using an index |
Index accesses, rows qual |
Number of rows indirectly accessed using an index, satisfying conditions |
Index range accesses |
Number of search operations using an index range |
Index range accesses, rows read |
Number of rows indirectly accessed using an index range |
Index range accesses, rows qual |
Number of rows indirectly accessed using an index range, satisfying conditions |
Isolated index accesses |
Number of search operations completely or partially satisfied by an index without accessing the corresponding base table rows |
Isolated index accesses, rows read |
Number of keys accessed within the search operations denoted in ISOLATED INDEX ACCESSES |
Isolated index accesses, rows qual |
Number of keys accessed within the search operations denoted in ISOLATED INDEX ACCESSES, satisfying conditions |
Isolated index range accesses |
Number of search operations using a part of an index with values within a range without accessing the rows of the base table |
Isolated index range accesses, rows read |
Number of primary/secondary keys accessed within the search operations denoted by ISOLATED INDEX RANGE ACCESSES |
Isolated index range accesses, rows qual |
Number of primary/secondary keys accessed within the search operations denoted by ISOLATED INDEX RANGE ACCESSES, satisfying conditions |
Table scans |
Number of search operations through the whole base table |
Table scans, rows read |
Number of rows accessed within search operations through the whole base table |
Table scans, rows qual |
Number of rows accessed within search operations through the whole base table, satisfying conditions |
Isolated index scans |
Number of search operations for which a complete index was accessed without accessing rows of the base table |
Isolated index scans, rows read |
Number of index rows accessed within the search operations described under ISOLATED INDEX SCANS |
Isolated index scans, rows qual |
Number of index rows accessed within the search operations described under ISOLATED INDEX SCANS, satisfying conditions |
Memory sorts / sort&merge |
Number of sorting operations in the main memory to build temporary indexes |
Memory sorts / sort&merge, rows read |
Number of rows read to build temporary indexes |
Sorts by insertion |
Number of sorting operations by inserts |
Sorts by insertion, rows inserted |
Number of rows inserted during the sorting operation |