DB2 10.5 for Linux, UNIX, and Windows

SNAP_GET_DETAILLOG_V91 table function - Retrieve snapshot information from the detail_log logical data group

The SNAP_GET_DETAILLOG_V91 table function returns snapshot information from the detail_log logical data group.

Note: This table function has been deprecated and replaced by the MON_GET_TRANSACTION_LOG table function - Get log information.

Refer to Table 1 for a complete list of information that is returned.

Syntax


>>-SNAP_GET_DETAILLOG_V91--(--dbname--+------------------+--)--><
                                      '-, dbpartitionnum-'

The schema is SYSPROC.

Table function parameters

dbname: An input argument of type VARCHAR(128) that specifies a valid database name in the same instance as the currently connected database. Specify a database name that has a directory entry type of either "Indirect" or "Home", as returned by the LIST DATABASE DIRECTORY command. Specify an empty string to take the snapshot from the currently connected database. Specify a NULL value to take the snapshot from all databases within the same instance as the currently connected database.
dbpartitionnum: An optional input argument of type INTEGER that specifies a valid database partition number. Specify -1 for the current database partition, or -2 for an aggregate of all active database partitions. If dbname is not set to NULL and dbpartitionnum is set to NULL, -1 is set implicitly for dbpartitionnum. If this input option is not used, that is, only dbname is provided, data is returned from all active database partitions. An active database partition is a partition where the database is available for connection and use by applications.

If both dbname and dbpartitionnum are set to NULL, an attempt is made to read data from the file created by SNAP_WRITE_FILE procedure. Note that this file could have been created at any time, which means that the data might not be current. If a file with the corresponding snapshot API request type does not exist, then the SNAP_GET_DETAILLOG_V91 table function takes a snapshot for the currently connected database and database partition number.

Authorization

One of the following authorizations is required:

EXECUTE privilege on the SNAP_GET_DETAILLOG_V91 table function
DATAACCESS authority

In addition, to access snapshot monitor data, one of the following authorities is also required:

SYSMON
SYSCTRL
SYSMAINT
SYSADM

Default PUBLIC privilege

In a non-restrictive database, EXECUTE privilege is granted to PUBLIC when the function is automatically created.

Example

Retrieve log information for database partition 1 for the currently connected database.

SELECT SUBSTR(DB_NAME, 1, 8) AS DB_NAME, FIRST_ACTIVE_LOG, 
   LAST_ACTIVE_LOG, CURRENT_ACTIVE_LOG, CURRENT_ARCHIVE_LOG 
   FROM TABLE(SNAP_GET_DETAILLOG_V91('', 1)) AS T

The following is an example of output from this query.

DB_NAME  FIRST_ACTIVE_LOG     LAST_ACTIVE_LOG      ...
-------- -------------------- -------------------- ...
TEST                        0                    8 ...

  1 record(s) selected.

Output from this query (continued).

... CURRENT_ACTIVE_LOG   CURRENT_ARCHIVE_LOG 
... -------------------- --------------------
...                    0                    -

Information returned

Table 1. Information returned by the SNAP_GET_DETAILLOG_V91 table function
Column name	Data type	Description or corresponding monitor element
SNAPSHOT_TIMESTAMP	TIMESTAMP	The date and time that the snapshot was taken.
DB_NAME	VARCHAR(128)	db_name - Database name
FIRST_ACTIVE_LOG	BIGINT	first_active_log - First active log file number
LAST_ACTIVE_LOG	BIGINT	last_active_log - Last active log file number
CURRENT_ACTIVE_LOG	BIGINT	current_active_log - Current active log file number
CURRENT_ARCHIVE_LOG	BIGINT	current_archive_log - Current archive log file number
DBPARTITIONNUM	SMALLINT	dbpartitionnum - Database partition number monitor element