sqLite: join subselect unique without using distinct becouse of performance reasons





.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty{ height:90px;width:728px;box-sizing:border-box;
}







0















I have two joints but I do not want the same row again.

that works with select distinct.

but for performance reasons, I wanted to check that soon in the where clause with:
and x.ROWID != w.ROWID



but I get the following error:

[SQLITE_ERROR] SQL error or missing database (no such column: w.ROWID)



Is that possible?



here the complete select:



select distinct substr(w.wordindexed, 1, 55), substr(w.word, 1, 15), w.wordreplacement
from Words w
JOIN (SELECT x.ActionListId, x.wordindexed, x.word, x.wordreplacement
from Words x
where x.word like "%Hallo %"
and x.ROWID != w.ROWID
limit 1)
JOIN (SELECT p.ActionListId, p.wordindexed, p.word, p.wordreplacement
from Words p
where p.word like "%Tool%"
and p.ROWID != x.ROWID
limit 1
)
limit 5;


Example result:



3   HALLO VON _GLOBALACTIONLISTS_GLOBAL.AHK    Hallo von _globalActionLists_global.ahk    ""
6 HALLO WELT Hallo Welt ""
9 HALLO VON _GLOBALACTIONLISTS_GLOBAL.AHK Hallo von _globalActionLists_global.ahk ""


Example insert:



INSERT INTO Words (ActionListID, wordindexed, word, lineNr, count, worddescription, wordreplacement) VALUES (3, 'HALLO VON _GLOBALACTIONLISTS_GLOBAL.AHK', 'Hallo von _globalActionLists_global.ahk', 5, null, null, '');
INSERT INTO Words (ActionListID, wordindexed, word, lineNr, count, worddescription, wordreplacement) VALUES (3, 'STOP CHANGEING LIST|RR||AHK|G_CONFIG["LIST"]["CHANGE"]["STOPREXEXTITLE"]:="."', 'stop changeing list|rr||ahk|g_config["list"]["change"]["stopRexExTitle"]:="."', 7, null, null, '');
INSERT INTO Words (ActionListID, wordindexed, word, lineNr, count, worddescription, wordreplacement) VALUES (3, ' DONT CHANGEING LIST|RR||AHK|
', ' dont changeing list|rr||ahk|
', 9, null, null, '');
INSERT INTO Words (ActionListID, wordindexed, word, lineNr, count, worddescription, wordreplacement) VALUES (6, 'HALLO WELT ', 'Hallo Welt ', 9, null, null, '');
INSERT INTO Words (ActionListID, wordindexed, word, lineNr, count, worddescription, wordreplacement) VALUES (9, 'HALLO VON _GLOBALACTIONLISTS_GLOBAL.AHK', 'Hallo von _globalActionLists_global.ahk', 5, null, null, '');


the tabke:



create table Words
(
ActionListID INTEGER not null,
wordindexed TEXT not null,
word TEXT not null,
lineNr INTEGER,
count INTEGER,
worddescription TEXT,
wordreplacement TEXT not null,
primary key (ActionListID, word, wordreplacement)
)
;

create index WordIndex
on Words (ActionListID, wordindexed)
;









share|improve this question

























  • Please add example data and expected result. There might be a whole better way to do what you are trying.

    – juergen d
    Nov 16 '18 at 10:29











  • I think that's a good workaround: SELECT distinct * FROM (SELECT distinct * FROM Words WHERE wordindexed LIKE "L%" order by ROWID asc ) t1 UNION ALL SELECT * FROM (SELECT distinct * FROM Words WHERE wordindexed LIKE "%L%" order by ROWID desc ) t2;

    – SL5net
    Nov 16 '18 at 11:13




















0















I have two joints but I do not want the same row again.

that works with select distinct.

but for performance reasons, I wanted to check that soon in the where clause with:
and x.ROWID != w.ROWID



but I get the following error:

[SQLITE_ERROR] SQL error or missing database (no such column: w.ROWID)



Is that possible?



here the complete select:



select distinct substr(w.wordindexed, 1, 55), substr(w.word, 1, 15), w.wordreplacement
from Words w
JOIN (SELECT x.ActionListId, x.wordindexed, x.word, x.wordreplacement
from Words x
where x.word like "%Hallo %"
and x.ROWID != w.ROWID
limit 1)
JOIN (SELECT p.ActionListId, p.wordindexed, p.word, p.wordreplacement
from Words p
where p.word like "%Tool%"
and p.ROWID != x.ROWID
limit 1
)
limit 5;


Example result:



3   HALLO VON _GLOBALACTIONLISTS_GLOBAL.AHK    Hallo von _globalActionLists_global.ahk    ""
6 HALLO WELT Hallo Welt ""
9 HALLO VON _GLOBALACTIONLISTS_GLOBAL.AHK Hallo von _globalActionLists_global.ahk ""


Example insert:



INSERT INTO Words (ActionListID, wordindexed, word, lineNr, count, worddescription, wordreplacement) VALUES (3, 'HALLO VON _GLOBALACTIONLISTS_GLOBAL.AHK', 'Hallo von _globalActionLists_global.ahk', 5, null, null, '');
INSERT INTO Words (ActionListID, wordindexed, word, lineNr, count, worddescription, wordreplacement) VALUES (3, 'STOP CHANGEING LIST|RR||AHK|G_CONFIG["LIST"]["CHANGE"]["STOPREXEXTITLE"]:="."', 'stop changeing list|rr||ahk|g_config["list"]["change"]["stopRexExTitle"]:="."', 7, null, null, '');
INSERT INTO Words (ActionListID, wordindexed, word, lineNr, count, worddescription, wordreplacement) VALUES (3, ' DONT CHANGEING LIST|RR||AHK|
', ' dont changeing list|rr||ahk|
', 9, null, null, '');
INSERT INTO Words (ActionListID, wordindexed, word, lineNr, count, worddescription, wordreplacement) VALUES (6, 'HALLO WELT ', 'Hallo Welt ', 9, null, null, '');
INSERT INTO Words (ActionListID, wordindexed, word, lineNr, count, worddescription, wordreplacement) VALUES (9, 'HALLO VON _GLOBALACTIONLISTS_GLOBAL.AHK', 'Hallo von _globalActionLists_global.ahk', 5, null, null, '');


the tabke:



create table Words
(
ActionListID INTEGER not null,
wordindexed TEXT not null,
word TEXT not null,
lineNr INTEGER,
count INTEGER,
worddescription TEXT,
wordreplacement TEXT not null,
primary key (ActionListID, word, wordreplacement)
)
;

create index WordIndex
on Words (ActionListID, wordindexed)
;









share|improve this question

























  • Please add example data and expected result. There might be a whole better way to do what you are trying.

    – juergen d
    Nov 16 '18 at 10:29











  • I think that's a good workaround: SELECT distinct * FROM (SELECT distinct * FROM Words WHERE wordindexed LIKE "L%" order by ROWID asc ) t1 UNION ALL SELECT * FROM (SELECT distinct * FROM Words WHERE wordindexed LIKE "%L%" order by ROWID desc ) t2;

    – SL5net
    Nov 16 '18 at 11:13
















0












0








0








I have two joints but I do not want the same row again.

that works with select distinct.

but for performance reasons, I wanted to check that soon in the where clause with:
and x.ROWID != w.ROWID



but I get the following error:

[SQLITE_ERROR] SQL error or missing database (no such column: w.ROWID)



Is that possible?



here the complete select:



select distinct substr(w.wordindexed, 1, 55), substr(w.word, 1, 15), w.wordreplacement
from Words w
JOIN (SELECT x.ActionListId, x.wordindexed, x.word, x.wordreplacement
from Words x
where x.word like "%Hallo %"
and x.ROWID != w.ROWID
limit 1)
JOIN (SELECT p.ActionListId, p.wordindexed, p.word, p.wordreplacement
from Words p
where p.word like "%Tool%"
and p.ROWID != x.ROWID
limit 1
)
limit 5;


Example result:



3   HALLO VON _GLOBALACTIONLISTS_GLOBAL.AHK    Hallo von _globalActionLists_global.ahk    ""
6 HALLO WELT Hallo Welt ""
9 HALLO VON _GLOBALACTIONLISTS_GLOBAL.AHK Hallo von _globalActionLists_global.ahk ""


Example insert:



INSERT INTO Words (ActionListID, wordindexed, word, lineNr, count, worddescription, wordreplacement) VALUES (3, 'HALLO VON _GLOBALACTIONLISTS_GLOBAL.AHK', 'Hallo von _globalActionLists_global.ahk', 5, null, null, '');
INSERT INTO Words (ActionListID, wordindexed, word, lineNr, count, worddescription, wordreplacement) VALUES (3, 'STOP CHANGEING LIST|RR||AHK|G_CONFIG["LIST"]["CHANGE"]["STOPREXEXTITLE"]:="."', 'stop changeing list|rr||ahk|g_config["list"]["change"]["stopRexExTitle"]:="."', 7, null, null, '');
INSERT INTO Words (ActionListID, wordindexed, word, lineNr, count, worddescription, wordreplacement) VALUES (3, ' DONT CHANGEING LIST|RR||AHK|
', ' dont changeing list|rr||ahk|
', 9, null, null, '');
INSERT INTO Words (ActionListID, wordindexed, word, lineNr, count, worddescription, wordreplacement) VALUES (6, 'HALLO WELT ', 'Hallo Welt ', 9, null, null, '');
INSERT INTO Words (ActionListID, wordindexed, word, lineNr, count, worddescription, wordreplacement) VALUES (9, 'HALLO VON _GLOBALACTIONLISTS_GLOBAL.AHK', 'Hallo von _globalActionLists_global.ahk', 5, null, null, '');


the tabke:



create table Words
(
ActionListID INTEGER not null,
wordindexed TEXT not null,
word TEXT not null,
lineNr INTEGER,
count INTEGER,
worddescription TEXT,
wordreplacement TEXT not null,
primary key (ActionListID, word, wordreplacement)
)
;

create index WordIndex
on Words (ActionListID, wordindexed)
;









share|improve this question
















I have two joints but I do not want the same row again.

that works with select distinct.

but for performance reasons, I wanted to check that soon in the where clause with:
and x.ROWID != w.ROWID



but I get the following error:

[SQLITE_ERROR] SQL error or missing database (no such column: w.ROWID)



Is that possible?



here the complete select:



select distinct substr(w.wordindexed, 1, 55), substr(w.word, 1, 15), w.wordreplacement
from Words w
JOIN (SELECT x.ActionListId, x.wordindexed, x.word, x.wordreplacement
from Words x
where x.word like "%Hallo %"
and x.ROWID != w.ROWID
limit 1)
JOIN (SELECT p.ActionListId, p.wordindexed, p.word, p.wordreplacement
from Words p
where p.word like "%Tool%"
and p.ROWID != x.ROWID
limit 1
)
limit 5;


Example result:



3   HALLO VON _GLOBALACTIONLISTS_GLOBAL.AHK    Hallo von _globalActionLists_global.ahk    ""
6 HALLO WELT Hallo Welt ""
9 HALLO VON _GLOBALACTIONLISTS_GLOBAL.AHK Hallo von _globalActionLists_global.ahk ""


Example insert:



INSERT INTO Words (ActionListID, wordindexed, word, lineNr, count, worddescription, wordreplacement) VALUES (3, 'HALLO VON _GLOBALACTIONLISTS_GLOBAL.AHK', 'Hallo von _globalActionLists_global.ahk', 5, null, null, '');
INSERT INTO Words (ActionListID, wordindexed, word, lineNr, count, worddescription, wordreplacement) VALUES (3, 'STOP CHANGEING LIST|RR||AHK|G_CONFIG["LIST"]["CHANGE"]["STOPREXEXTITLE"]:="."', 'stop changeing list|rr||ahk|g_config["list"]["change"]["stopRexExTitle"]:="."', 7, null, null, '');
INSERT INTO Words (ActionListID, wordindexed, word, lineNr, count, worddescription, wordreplacement) VALUES (3, ' DONT CHANGEING LIST|RR||AHK|
', ' dont changeing list|rr||ahk|
', 9, null, null, '');
INSERT INTO Words (ActionListID, wordindexed, word, lineNr, count, worddescription, wordreplacement) VALUES (6, 'HALLO WELT ', 'Hallo Welt ', 9, null, null, '');
INSERT INTO Words (ActionListID, wordindexed, word, lineNr, count, worddescription, wordreplacement) VALUES (9, 'HALLO VON _GLOBALACTIONLISTS_GLOBAL.AHK', 'Hallo von _globalActionLists_global.ahk', 5, null, null, '');


the tabke:



create table Words
(
ActionListID INTEGER not null,
wordindexed TEXT not null,
word TEXT not null,
lineNr INTEGER,
count INTEGER,
worddescription TEXT,
wordreplacement TEXT not null,
primary key (ActionListID, word, wordreplacement)
)
;

create index WordIndex
on Words (ActionListID, wordindexed)
;






sqlite






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Nov 16 '18 at 10:41







SL5net

















asked Nov 16 '18 at 10:19









SL5netSL5net

3821416




3821416













  • Please add example data and expected result. There might be a whole better way to do what you are trying.

    – juergen d
    Nov 16 '18 at 10:29











  • I think that's a good workaround: SELECT distinct * FROM (SELECT distinct * FROM Words WHERE wordindexed LIKE "L%" order by ROWID asc ) t1 UNION ALL SELECT * FROM (SELECT distinct * FROM Words WHERE wordindexed LIKE "%L%" order by ROWID desc ) t2;

    – SL5net
    Nov 16 '18 at 11:13





















  • Please add example data and expected result. There might be a whole better way to do what you are trying.

    – juergen d
    Nov 16 '18 at 10:29











  • I think that's a good workaround: SELECT distinct * FROM (SELECT distinct * FROM Words WHERE wordindexed LIKE "L%" order by ROWID asc ) t1 UNION ALL SELECT * FROM (SELECT distinct * FROM Words WHERE wordindexed LIKE "%L%" order by ROWID desc ) t2;

    – SL5net
    Nov 16 '18 at 11:13



















Please add example data and expected result. There might be a whole better way to do what you are trying.

– juergen d
Nov 16 '18 at 10:29





Please add example data and expected result. There might be a whole better way to do what you are trying.

– juergen d
Nov 16 '18 at 10:29













I think that's a good workaround: SELECT distinct * FROM (SELECT distinct * FROM Words WHERE wordindexed LIKE "L%" order by ROWID asc ) t1 UNION ALL SELECT * FROM (SELECT distinct * FROM Words WHERE wordindexed LIKE "%L%" order by ROWID desc ) t2;

– SL5net
Nov 16 '18 at 11:13







I think that's a good workaround: SELECT distinct * FROM (SELECT distinct * FROM Words WHERE wordindexed LIKE "L%" order by ROWID asc ) t1 UNION ALL SELECT * FROM (SELECT distinct * FROM Words WHERE wordindexed LIKE "%L%" order by ROWID desc ) t2;

– SL5net
Nov 16 '18 at 11:13














0






active

oldest

votes












Your Answer






StackExchange.ifUsing("editor", function () {
StackExchange.using("externalEditor", function () {
StackExchange.using("snippets", function () {
StackExchange.snippets.init();
});
});
}, "code-snippets");

StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "1"
};
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: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
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
});


}
});














draft saved

draft discarded


















StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53335776%2fsqlite-join-subselect-unique-without-using-distinct-becouse-of-performance-reas%23new-answer', 'question_page');
}
);

Post as a guest















Required, but never shown

























0






active

oldest

votes








0






active

oldest

votes









active

oldest

votes






active

oldest

votes
















draft saved

draft discarded




















































Thanks for contributing an answer to Stack Overflow!


  • 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.




draft saved


draft discarded














StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53335776%2fsqlite-join-subselect-unique-without-using-distinct-becouse-of-performance-reas%23new-answer', 'question_page');
}
);

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







Popular posts from this blog

Florida Star v. B. J. F.

Error while running script in elastic search , gateway timeout

Adding quotations to stringified JSON object values