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QuestionCreate a new Primary Key on survey table Pin
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QuestionIndexing question Pin
Super Lloyd5-Feb-20 13:35
MemberSuper Lloyd5-Feb-20 13:35 
Say I have this TSQL table
create table Table (
  TableId int identity(1, 1) not null,
  value nvarchar(max) null,
  id0 int null,
  id1 int null,
  id2 int null
)

and say I make a query like (getting the biggest id2 for a given id0 and id1)
declare @arg0 int = 2
declare @arg1 int = 3

select top 1 id2
from Table
where id0 = @arg0 and id1 = @arg1
order by id2 desc

What would be the better index Index1, or Index2?
create index Index1 on Table (id2) include (id0, id1)
create index index2 on Table (id0, id1, id2)
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modified 5-Feb-20 20:52pm.

AnswerRe: Indexing question Pin
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Questionintegrity constraint Pin
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Questiontransaction recovery Pin
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QuestionCopy structure of all the tables of one database to another server Pin
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AnswerRe: Copy structure of all the tables of one database to another server Pin
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Questionintegrity constraint Pin
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