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estimate the costs
US
UK
un.
计算成本
E-C
un.
1.
计算成本
Sample Sentence
Definition:
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All
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计算成本
计算成本
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,
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,
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Written
,
Title
Title
,
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Technical
Source:
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,
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Dictionary
,
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1.
This
data
model
is
used
by the
optimizer
to
estimate
the
costs
of
alternative
access
paths
that
can
be
used
to
resolve
a
particular
query
.
优化器
使用
该
数据
模型
来
估计
可以
用于
解决
某个
特定
查询
的
其它
存取
路径
的
成本
。
yōu huà qì
shǐ yòng
gāi
shù jù
mó xíng
lái
gū jì
kě yǐ
yòng yú
jiě jué
mǒu gè
tè dìng
chá xún
de
qí tā
cún qǔ
lù jìng
de
chéng běn
。
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