It is used when there are no indexes on one or more joining tables, or when the database server must read a large number of rows from all joining tables.

  • 当一个或多个连接表上没有索引时,或者当数据库服务器必须从所有连接表中读取大量行时,就使用这种方法。
  • 来源:互联网摘选更新时间:2026-07-02 15:53:30

  • 重点词汇
  • there are有;可数名词的复数形式;许多重要事情要谈
  • noadv. 不;否;一点也没有;
  • onenum. (数字)一;一个;(基数)一,第一;
  • alladj. 全部的;一切的;各种的;极度的,尽量的;
  • readvt.& vi. 阅读,朗读;显示;研究;看得懂;
  • a large number of很多;
  • tablesn.表;桌子;一览表;几;台子;(就餐或玩牌等的)一桌人
  • onprep. (覆盖、附着)在…上;由…支撑着;在(运输工具)上;在(某一天);就在…之后;关于(事或人);(身上)带着;为(某团体或组织)的一员;吃;(表示方向)在,向,对;在,接近(某地);根据;以…支付;通过;与…相比
  • 相关例句
1、

On the one hand, read a large number of domestic and foreign literature masterpieces on group events, and analyze the research result, then track the new information and developments accordingly.

一方面广泛翻阅和借鉴大量国内外有关群体性突发事件的研究文献,对其进行整理与分析,不断跟踪新信息、新动态。

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2、

And will you please sign this foreign exchange request? I've already written down your name and address for you, but I will read your passport number.

也请您签一下这张外汇申请好吗?我已经记下了您的姓名和地址,但我还得检查一下您的护照号码。

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3、

The researchers also found that men and women tend to read the same number of books but that women preferred to read more recent books than men.

研究人员也发现,男性和女性阅读的书籍数量往往都差不多,但女性更喜欢阅读新书。

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4、

This mode should be used if your application will always read a fixed number of characters, or if the connected device sends bursts of characters.

这种模式可以用在每次读取固定长度字符串的程序中,或者所连接的设备会突然送出大量字符的情况下。

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5、

Here is how to create a customized System Health data view that compares the number of rows read to the number of rows selected.

下面介绍如何创建自定义的System Health数据视图,这个视图比较读取的行数与选择的行数。

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6、

During the inspection, I read a large number of books and information on the intrusion detection system and performed of a certain model of the study.

期间查阅大量书籍和资料,对入侵检测系统的性能和模型有一定的研究。

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7、

The ratio of the number of Log pages read to the number of Log pages written should be as small as possible.

日志页面读数目与日志页面写数目的比值应尽可能小。

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8、

In order to be successful, you must read a large number of motivational books and watching inspirational movies!

为了取得成功,你就要大量地阅读励志书籍和观看励志电影!

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9、

If you can't read the first number plate correctly, you'll be asked to read a second number plate.

如果你无法读取正确的第一个车牌,你会被要求读第二号牌。

互联网摘选

10、

BIO_read will attempt to read a certain number of bytes from the server.

BIO read将尝试从服务器读取一定数目的字节。

互联网摘选

11、

Can you read his patrol number?

你能看到那巡逻车的车牌号?

provided by jukuu

12、

Other readers& will ever read a great number of books on a phone.

要我看,我自己以及其他好些读者可能不会在手机上阅读大量书籍。

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13、

The author read a large number of related books and literatures in the process of learning.

在研究的过程中,作者参阅了大量的书籍和相关文献。

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14、

This paper is mainly to read the tag number and display and write operations.

研究主要对标签号码的检测、读取显示和写操作。

互联网摘选

15、

Read the large number of documents, make an analysis of concept of urban agglomeration.

阅读大量文献资料,分析了城市群的概念,对关中&天水经济区城市群的研究进展进行了归纳总结。

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16、

According to manual metering model, this paper mainly improves on the algorithm of meter indication reading based on ARM, and completes the image acquisition based on embedded system. It realizes to read the number of energy meter automatically.

针对人工抄表模式,本文主要对基于ARM的仪表示值的判读算法进行了改进,完成了基于嵌入式系统的图像采集,实现了对电度表示值的自动读取。

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17、

If you read a number from a file and expect it to be positive, check that it is before further processing with that number.

如果从文件中读入一个数字并期望其为正数,那么,在使用其进行进一步处理前对其先验证一下。

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18、

How can I change reference number labels for existing addresses to read invoice number, model number, etc.?

如何更改现有地址的参考编码标签以便阅读发票编号、型号等?

互联网摘选

19、

When you revised the code I could read the number clearly by a spy-glass.

你们修改密码的时候,我在楼上用望远镜看个一清二楚。

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20、

And read conversation number five?

阅读第五段对话呢?

provided by jukuu

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