DB2 Version 10.1 for Linux, UNIX, and Windows

SNAPDETAILLOG administrative view and SNAP_GET_DETAILLOG table function - Retrieve snapshot information from the detail_log logical data group

The SNAPDETAILLOG administrative view and the SNAP_GET_DETAILLOG table function return snapshot information from the detail_log logical data group.

Depending on if you are using the administrative view or the table function, refer to one of the following sections:

SNAPDETAILLOG administrative view
SNAP_GET_DETAILLOG table function

SNAPDETAILLOG administrative view

This administrative view allows you to retrieve snapshot information from the detail_log logical data group for the currently connected database.

Used in conjunction with ADMIN_GET_STORAGE_PATHS, MON_GET_HADR, MON_GET_MEMORY_POOL, and SNAPDB, the SNAPDETAILLOG administrative view provides information equivalent to the GET SNAPSHOT FOR DATABASE on database-alias CLP command.

The schema is SYSIBMADM.

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

Authorization

One of the following authorizations is required to use the view:

SELECT privilege on the SNAPDETAILLOG administrative view
CONTROL privilege on the SNAPDETAILLOG administrative view
DATAACCESS authority
DBADM authority
SQLADM authority

One of the following is required to use the table function:

EXECUTE privilege on the SNAP_GET_DETAILLOG table function
DATAACCESS authority
DBADM authority
SQLADM 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, SELECT privilege is granted to PUBLIC when the view is automatically created.

Example

Retrieve log information for all database members 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, 
   DBPARTITIONNUM 
   FROM SYSIBMADM.SNAPDETAILLOG ORDER BY DBPARTITIONNUM

The following is an example of output from this query.

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

  3 record(s) selected.

Output from this query (continued).

... CURRENT_ACTIVE_LOG   CURRENT_ARCHIVE_LOG  DBPARTITIONNUM
... -------------------- -------------------- --------------
...                    0                    -              0
...                    0                    -              1
...                    0                    -              2

SNAP_GET_DETAILLOG table function

The SNAP_GET_DETAILLOG table function returns the same information as the SNAPDETAILLOG administrative view.

Used in conjunction with ADMIN_GET_STORAGE_PATHS, MON_GET_HADR, MON_GET_MEMORY_POOL, and SNAP_GET_DB, the SNAPDETAILLOG administrative view provides information equivalent to the GET SNAPSHOT FOR ALL DATABASES CLP command.

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

Syntax


>>-SNAP_GET_DETAILLOG--(--dbname--+----------+--)--------------><
                                  '-, member-'

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.
member: An optional input argument of type INTEGER that specifies a valid database member number. Specify -1 for the current database member, or -2 for an aggregate of all active database members. If dbname is not set to NULL and member is set to NULL, -1 is set implicitly for member. If this input option is not used, that is, only dbname is provided, data is returned from all active database members. An active database member is a member where the database is available for connection and use by applications.

If both dbname and member 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 table function takes a snapshot for the currently connected database and database member number.

Authorization

One of the following authorizations is required:

EXECUTE privilege on the SNAP_GET_DETAILLOG 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 member 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('', 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 SNAPDETAILLOG administrative view and SNAP_GET_DETAILLOG 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
MEMBER	SMALLINT	member - Database member monitor element