reorgchk结果项分析

下面是我执行reorgchk后的结果,请指导下该表是否需要做reorgDoing RUNSTATS ....Table statistics:F1: 100 * OVERFLOW / CARD < 5F2: 100 * (Effective Space Utilization of Data Pages) > 70F3: 100 * (Required Pages / Total Pages) > 80SCHEMA.NAME   &nb...显示全部
下面是我执行reorgchk后的结果,请指导下该表是否需要做reorgDoing RUNSTATS ....


Table statistics:

F1: 100 * OVERFLOW / CARD < 5
F2: 100 * (Effective Space Utilization of Data Pages) > 70
F3: 100 * (Required Pages / Total Pages) > 80

SCHEMA.NAME                     CARD     OV     NP     FP ACTBLK    TSIZE  F1  F
2  F3 REORG
--------------------------------------------------------------------------------
--------
Table: CLERK.WP_TEST
                                  10      0      1      1      -      230   0
- 100 ---
--------------------------------------------------------------------------------
--------

Index statistics:

F4: CLUSTERRATIO or normalized CLUSTERFACTOR > 80
F5: 100 * (Space used on leaf pages / Space available on non-empty leaf pages) >
MIN(50, (100 - PCTFREE))
F6: (100 - PCTFREE) * (Amount of space available in an index with one less level
/ Amount of space required for all keys) < 100
F7: 100 * (Number of pseudo-deleted RIDs / Total number of RIDs) < 20
F8: 100 * (Number of pseudo-empty leaf pages / Total number of leaf pages) < 20

SCHEMA.NAME                 INDCARD  LEAF ELEAF LVLS  NDEL    KEYS LEAF_RECSIZE
NLEAF_RECSIZE LEAF_PAGE_OVERHEAD NLEAF_PAGE_OVERHEAD  PCT_PAGES_SAVED  F4  F5  F
6  F7  F8 REORG
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------
---------------
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------
---------------


CLUSTERRATIO or normalized CLUSTERFACTOR (F4) will indicate REORG is necessary
for indexes that are not in the same sequence as the base table. When multiple
indexes are defined on a table, one or more indexes may be flagged as needing
REORG.  Specify the most important index for REORG sequencing.

Tables defined using the ORGANIZE BY clause and the corresponding dimension
indexes have a '*' suffix to their names. The cardinality of a dimension index
is equal to the Active blocks statistic of the table.


网上说,F1、F2、F3有*就需要对表进行reorg,F4、F5、F6、F7、F8有*就需要对索引进行reorg。
有没有哪位好心人,就上面的例子解释下每项的意思,及怎么判断该表需要reorg呢?收起
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chenxw_mailchenxw_mail项目经理123
REORG INDEXES ALL FOR TABLE...
互联网服务 · 2015-01-16
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