Okay to merge included columns on otherwise identical indexes? Announcing the arrival of Valued Associate #679: Cesar Manara Planned maintenance scheduled April 17/18, 2019 at 00:00UTC (8:00pm US/Eastern)SQL server indexing foreign keys, covering indexes included columnsdifference between having many non clustered index with single columns and with combination of many columnsTwo identical MySQL tables, one not using indexesAre these indexes redundant?Does Index Intersection work with Included Columns?Effect of an index on update statements where update column is not in an indexSQL Server : Included columns in an Index: is there something like “too many”?Any reason to have both an index with included columns and one without?Index creation with multiple columns - should I combine as many as possible?Table/Column Character Encoding and Indexes
How to answer "Have you ever been terminated?"
Storing hydrofluoric acid before the invention of plastics
When do you get frequent flier miles - when you buy, or when you fly?
String `!23` is replaced with `docker` in command line
Check which numbers satisfy the condition [A*B*C = A! + B! + C!]
Can an alien society believe that their star system is the universe?
How do I keep my slimes from escaping their pens?
Why did the IBM 650 use bi-quinary?
What is the meaning of the new sigil in Game of Thrones Season 8 intro?
How much time will it take to get my passport back if I am applying for multiple Schengen visa countries?
Is it true that "carbohydrates are of no use for the basal metabolic need"?
Extract all GPU name, model and GPU ram
List of Python versions
Why aren't air breathing engines used as small first stages
Can a non-EU citizen traveling with me come with me through the EU passport line?
Echoing a tail command produces unexpected output?
Bete Noir -- no dairy
What does an IRS interview request entail when called in to verify expenses for a sole proprietor small business?
Why are Kinder Surprise Eggs illegal in the USA?
List *all* the tuples!
At the end of Thor: Ragnarok why don't the Asgardians turn and head for the Bifrost as per their original plan?
Short Story with Cinderella as a Voo-doo Witch
Why did the Falcon Heavy center core fall off the ASDS OCISLY barge?
How widely used is the term Treppenwitz? Is it something that most Germans know?
Okay to merge included columns on otherwise identical indexes?
Announcing the arrival of Valued Associate #679: Cesar Manara
Planned maintenance scheduled April 17/18, 2019 at 00:00UTC (8:00pm US/Eastern)SQL server indexing foreign keys, covering indexes included columnsdifference between having many non clustered index with single columns and with combination of many columnsTwo identical MySQL tables, one not using indexesAre these indexes redundant?Does Index Intersection work with Included Columns?Effect of an index on update statements where update column is not in an indexSQL Server : Included columns in an Index: is there something like “too many”?Any reason to have both an index with included columns and one without?Index creation with multiple columns - should I combine as many as possible?Table/Column Character Encoding and Indexes
.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty margin-bottom:0;
I have two indexes that index the same field on the same table. The only difference between them is the included columns.
There's no reason I shouldn't combine the included columns and just have one index, right?
sql-server index
asked 6 hours ago
BVernonBVernon
213413
add a comment |
I have two indexes that index the same field on the same table. The only difference between them is the included columns.
There's no reason I shouldn't combine the included columns and just have one index, right?
sql-server index
asked 6 hours ago
BVernonBVernon
213413
add a comment |
I have two indexes that index the same field on the same table. The only difference between them is the included columns.
There's no reason I shouldn't combine the included columns and just have one index, right?
sql-server index
asked 6 hours ago
BVernonBVernon
213413
I have two indexes that index the same field on the same table. The only difference between them is the included columns.
There's no reason I shouldn't combine the included columns and just have one index, right?
sql-server index
sql-server index
asked 6 hours ago
BVernonBVernon
213413
asked 6 hours ago
BVernonBVernon
213413
asked 6 hours ago
BVernonBVernon
213413
asked 6 hours ago
BVernonBVernon
213413
asked 6 hours ago
BVernonBVernon
213413
213413
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
Yes, you should merge these indexes and only keep one, as long as you verify that:
Neither of them are marked as
UNIQUE(in which case, preserve that one)Neither of them have a filter condition
Neither of them are expressly referenced in an index hint
answered 5 hours ago
Erik DarlingErik Darling
22.9k1269113
Thanks. I just combined like 5 indexes and shed close to a gigabyte of data, lol. :)
– BVernon
4 hours ago
add a comment |
Your Answer
StackExchange.ready(function()
var channelOptions =
tags: "".split(" "),
id: "182"
;
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function()
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled)
StackExchange.using("snippets", function()
createEditor();
);
else
createEditor();
);
function createEditor()
StackExchange.prepareEditor(
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: false,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: null,
bindNavPrevention: true,
postfix: "",
imageUploader:
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
,
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
);
);
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function ()
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fdba.stackexchange.com%2fquestions%2f234982%2fokay-to-merge-included-columns-on-otherwise-identical-indexes%23new-answer', 'question_page');
);
Post as a guest
Required, but never shown
1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
Yes, you should merge these indexes and only keep one, as long as you verify that:
Neither of them are marked as
UNIQUE(in which case, preserve that one)Neither of them have a filter condition
Neither of them are expressly referenced in an index hint
answered 5 hours ago
Erik DarlingErik Darling
22.9k1269113
Thanks. I just combined like 5 indexes and shed close to a gigabyte of data, lol. :)
– BVernon
4 hours ago
add a comment |
Yes, you should merge these indexes and only keep one, as long as you verify that:
Neither of them are marked as
UNIQUE(in which case, preserve that one)Neither of them have a filter condition
Neither of them are expressly referenced in an index hint
answered 5 hours ago
Erik DarlingErik Darling
22.9k1269113
Thanks. I just combined like 5 indexes and shed close to a gigabyte of data, lol. :)
– BVernon
4 hours ago
add a comment |
Yes, you should merge these indexes and only keep one, as long as you verify that:
Neither of them are marked as
UNIQUE(in which case, preserve that one)Neither of them have a filter condition
Neither of them are expressly referenced in an index hint
answered 5 hours ago
Erik DarlingErik Darling
22.9k1269113
Yes, you should merge these indexes and only keep one, as long as you verify that:
Neither of them are marked as
UNIQUE(in which case, preserve that one)Neither of them have a filter condition
Neither of them are expressly referenced in an index hint
answered 5 hours ago
Erik DarlingErik Darling
22.9k1269113
answered 5 hours ago
Erik DarlingErik Darling
22.9k1269113
answered 5 hours ago
Erik DarlingErik Darling
22.9k1269113
answered 5 hours ago
Erik DarlingErik Darling
22.9k1269113
22.9k1269113
Thanks. I just combined like 5 indexes and shed close to a gigabyte of data, lol. :)
– BVernon
4 hours ago
add a comment |
Thanks. I just combined like 5 indexes and shed close to a gigabyte of data, lol. :)
– BVernon
4 hours ago
Thanks. I just combined like 5 indexes and shed close to a gigabyte of data, lol. :)
– BVernon
4 hours ago
Thanks. I just combined like 5 indexes and shed close to a gigabyte of data, lol. :)
– BVernon
4 hours ago
add a comment |
Thanks for contributing an answer to Database Administrators Stack Exchange!
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function ()
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fdba.stackexchange.com%2fquestions%2f234982%2fokay-to-merge-included-columns-on-otherwise-identical-indexes%23new-answer', 'question_page');
);
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
