16.10 - WDBD - Teradata Database

Teradata Database Support Utilities

prodname

Teradata Database

vrm_release

16.10

created_date

June 2017

The WDBD (WAL Data Block Descriptors) command shows a formatted display of the WDBDs in the current WCI.

The online help lists the display options (/S, /X, /H) as /dispopt.

/S: Displays the WDBDs in a short format. This is the default.
/X: Displays the WDBDs in an extended format.
/H: Displays all of the WDBDs, followed by a display of the WDBDs in hexadecimal.
WLSN = WlsnNum: Specifies a WAL log sequence number for which WDBDs will be displayed.; WlsnNum is an 64-bit value, the format of which is determined by the radix setting. For more information, see RADIX.
SECTOR = sectornum: Specifies a sector number for which WDBDs will be displayed.; sectornum is a hexadecimal or decimal value, subject to the radix setting. For more information, see RADIX.

WDBDs are used to determine which WDBs exists and where they are located on a cylinder.

The WDBD command must be invoked from a WCI or WCI:WDBD context. The resulting context is the selected range of WDBDs within the WCI.