kingsley200539 kingsley200539

20-09-2021
Computers and Technology

contestada

what is concatenated key index

Respuesta :

khansamueen khansamueen

24-09-2021

Answer:

A concatenated index, also known as multi-column, composite, or combined index, is one index across multiple columns. In the case of queries with multiple equality conditions, even though multiple single-column indexes can result in a very good performance, a single concatenated index solution is preferable.

Answer Link

Otras preguntas

How did the use of artillery change the way empires and lands that bordered them reacted to each other?

which expressions have a value of 33 A. 15+(8*3-6) B. (30+6)/6+3*2^2 C.40-[5*(3+1)+8] D.[(3+5)*2-5]*3

what is 4,180 rounded to the nearest thousand

Where does surface water collect if it does not flow to the ocean

From greatest to least 5/16, 1/2 , 1/4 7/6

Which explorer conducted a total of four voyages to the Americas and established the Columbian Exchange and trans-Atlantic slave trade?

2.5 gallons = how many cups

when are semicolons correctly and effectively used?

[T]he United States actively supported the Iraqi war effort by supplying the Iraqis with billions of dollars of credits, by providing U.S. military intelligence

What did people use to make tools in the Mesolithic Era?