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what is main use of table space and index object?
please its urgent
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Answer / yuvaevergreen
>>Tablespace is one of the subdivision of Database in DB2.
Tables are created in Tablespaces.Indexspace is also a
subdivision of Database which contains indexes.
>>One imp difference is tablespace can contain one or more
tables whereas indexspace contains only one index for a table.
>>Tablespace has to be created by explicitly mentioning
create tablespace whereas indexspace is created implicitly
whenever we create an index using create index command.
>> Index is an object which can be considered as pointers to
rows of a table.
| Is This Answer Correct ? | 29 Yes | 0 No |
Answer / venu
Table Spaces are phsysical spaces where the tables are
created. Index spacesa are automatically created when
indexes are created, indexes are stored in index spaces.
| Is This Answer Correct ? | 16 Yes | 5 No |
Answer / jdp
why do people write funny answers here...there are lots of other sites to make fun of...
| Is This Answer Correct ? | 6 Yes | 0 No |
Answer / sathya kanuri
To convert your tablespace to the larger format you simply
execute
ALTER TABLESPACE tablespace_name CONVERT TO LARGE
Once you have done this, any new table created in this
tablespace will use the 6 byte rid format. However, there
are special considerations for existing tables (because the
above command does not touch the data pages themselves).
For existing tables you have three options at this point.
Leave them as they are and they will continue to use the 4
byte rids so they would have the same size restrictions as
they had in DB2 8.
If you want the tables to grow larger than the 3 byte page
number supports, then you need to reorganize or rebuild the
indexes on that table so that those indexes can point to
rows beyond the 3 byte page number limit. If that's all you
need then you can do an online index reorganization to
convert the indexes to use 6 byte rids
If you also want to be able to put more than 255 rows on a
page (which of course is limited based on the length of
your row and the size of the page), then you need to
reorganize the data pages so that there is room for a two
byte slot number. To do this you need to use the classic
REORG command
| Is This Answer Correct ? | 1 Yes | 0 No |
Answer / guest
the main use of table space is when giving space between
two table persons can move freely .
| Is This Answer Correct ? | 1 Yes | 17 No |
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