| 释义 |
您要找的是不是： combn. 梳子；蜂巢；鸡冠 | vt. 梳头发；梳毛 |... coldadj. 寒冷的；冷淡的，不热情的；失去知觉... 1 ?哥伦比亚银行系统 我对$哥伦比亚银行系统(COLB)$有话说 2 ?名字 ... 名字: Colb 姓: A 标签: A M Colb ...
- 1
For the purposes of discussion, our chosen index is a three-column index called IX1 created on (COLA, COLB, COLC). 为了便于讨论，我们选择的索引是一个三列索引，名为IX1，在(COLA, COLB, COLC)上创建。 - 2
Our chosen index is on (COLA, COLB, COLC), so those predicates-the first three lines in the preceding example-will be applied in that order. 我们选择的索引位于(COLA, COLB, COLC)上，因此那些谓词—上面的示例中的前三行—将以那个顺序应用。 - 3
If you want those three predicates applied in the exact order in which you code them, you must drop and re-create the index (or create a new index) on (COLA, COLC, COLB). 如果您想那三个谓词完全按照它们的编码顺序应用，则必须删除并在(COLA, COLC, COLB)上重建索引(或者创建一个新索引)。
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