IBM 000-8697 User Manual
7-42
IBM Informix OnLine Database Server Administrator’s Guide
Option Descriptions
-pB Option
The -pB option displays statistics that describe the average fullness of
blobspace blobpages in a specified table. These statistics provide a measure
of storage efficiency for individual blobs in a database or table. If a table is not
specified, statistics are displayed for the database. Refer to
blobspace blobpages in a specified table. These statistics provide a measure
of storage efficiency for individual blobs in a database or table. If a table is not
specified, statistics are displayed for the database. Refer to
for more
details about interpreting tbcheck -pB output.
tbcheck -pB stores5:catalog
-pc Option
The -pc option performs the same checks as the -cc option. In addition, -pc
displays the system catalog information as it checks it, including extent use
for each table. Refer to the -cc discussion on
displays the system catalog information as it checks it, including extent use
for each table. Refer to the -cc discussion on
.
tbcheck -pc
-pd and -pD Options
The -pd option can take a database, a table, and a specific rowid or logical
page number as input. In every case, -pd prints page header information and
displays the specified rows in hexadecimal and
page number as input. In every case, -pd prints page header information and
displays the specified rows in hexadecimal and
ASCII
format. No checks for
consistency are performed. If you specify a rowid (expressed as a
hexadecimal value), the page number contained in the rowid is printed.
(Refer to
hexadecimal value), the page number contained in the rowid is printed.
(Refer to
for more details about the rowid.) If you specify a logical
page number (expressed as a decimal), the contents of that page are printed
if the page is a home page. If you specify a table, all the rows in the table are
printed, with their rowids. If you specify a database, all the rows in the
database are printed. Blob descriptors stored in the data row are printed but
blob data itself is not.
if the page is a home page. If you specify a table, all the rows in the table are
printed, with their rowids. If you specify a database, all the rows in the
database are printed. Blob descriptors stored in the data row are printed but
blob data itself is not.
The -pD option prints the same information as -pd. In addition, -pD prints
blob values stored in the tblspace or blob header information for blobs stored
in a blobspace blobpage. For more details about how to use this output to
monitor disk pages, refer to
blob values stored in the tblspace or blob header information for blobs stored
in a blobspace blobpage. For more details about how to use this output to
monitor disk pages, refer to
tbcheck -pd stores5:systables
tbcheck -pd stores5:systables 5
tbcheck -pD stores5:customer 0x101
tbcheck -pd stores5:systables 5
tbcheck -pD stores5:customer 0x101