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Projection (relational algebra): Revision history

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curprev 07:4707:47, 26 March 2025 MrMacmur talk contribs 6,759 bytes +8 Link suggestions feature: 2 links added. undo Tags: Visual edit Newcomer task Suggested: add links

curprev 23:3823:38, 17 October 2024 Mindmatrix talk contribs m 6,751 bytes −26 Reverted edits by 219.88.227.163 (talk) to last version by Vikreykja undo Tag: Rollback
curprev 23:0023:00, 17 October 2024 219.88.227.163 talk 6,777 bytes +13 →Formal definition undo Tag: Reverted
curprev 22:5822:58, 17 October 2024 219.88.227.163 talk 6,764 bytes +13 →Example undo Tag: Reverted

curprev 18:0418:04, 2 May 2024 Vikreykja talk contribs m 6,751 bytes +5 use actual × symbol instead of * undo

curprev 16:1116:11, 27 August 2023 Everup talk contribs m 6,746 bytes +23 Added subtitle "Formal definition". undo

curprev 18:2218:22, 26 August 2023 Tc14Hd talk contribs m 6,723 bytes +26 Added link undo
curprev 16:1216:12, 26 August 2023 Tc14Hd talk contribs 6,697 bytes +89 No edit summary undo Tags: Mobile edit Mobile app edit Android app edit

curprev 20:2320:23, 20 January 2023 Pauldebarros talk contribs m 6,608 bytes +3 →Related concepts: added a missing word undo

curprev 00:2700:27, 24 December 2022 Karl Dickman talk contribs 6,605 bytes +4 Add link to relation of degree zero undo
curprev 00:2600:26, 24 December 2022 Karl Dickman talk contribs 6,601 bytes +2 Add punctuation to formula undo

curprev 16:5616:56, 11 March 2021 12.97.151.170 talk 6,599 bytes +4 No edit summary undo

curprev 21:5821:58, 2 March 2021 Likes2wiki talk contribs m 6,595 bytes +79 Make minor changes to introduction for style and clarity undo Tag: Visual edit: Switched

curprev 20:4220:42, 21 October 2019 Mikeblas talk contribs m 6,516 bytes −26 →See also: remove obsolete link undo

curprev 20:3920:39, 12 September 2019 Mcaputo1979 talk contribs m 6,542 bytes −1 Corrected "eliminates" to "eliminate" undo

curprev 04:4304:43, 4 August 2019 André Neves talk contribs m 6,543 bytes 0 →Example: made the example a little bit more interesting by repeating a value in only one attribute undo

curprev 09:1909:19, 12 August 2018 Ira Leviton talk contribs m 6,543 bytes −31 Deleted the phrasing 'it is interesting to note that' - see Wikipedia:Manual_of_Style/Words_to_watch#Editorializing. undo

curprev 13:3613:36, 10 May 2018 Cedar101 talk contribs m 6,574 bytes +7 →Example: \text undo

curprev 10:3410:34, 2 March 2018 Jabberjaw talk contribs m 6,567 bytes 0 →Related concepts: clean up, typo(s) fixed: adiction → addition using AWB undo

curprev 05:0105:01, 6 February 2018 AugPi talk contribs 6,567 bytes +185 →Example undo

curprev 10:1810:18, 15 November 2017 Krauss talk contribs m 6,382 bytes +240 →Related concepts: SQL and real life applications undo Tag: 2017 wikitext editor

curprev 10:2510:25, 6 September 2017 Mark viking talk contribs 6,142 bytes −50 →top: Removed expert needed tag from 2009 - tag had no explanation of what was needed and it is not clear what was wanted undo

curprev 19:1819:18, 5 January 2017 128.189.133.101 talk 6,192 bytes −1 No edit summary undo

curprev 06:5106:51, 23 December 2016 Jhertel talk contribs 6,193 bytes +28 →Related concepts: Corrected link. undo Tags: Mobile edit Mobile web edit

curprev 00:0500:05, 31 July 2016 173.178.1.31 talk 6,165 bytes +1 No edit summary undo
curprev 00:0500:05, 31 July 2016 173.178.1.31 talk 6,164 bytes −1 No edit summary undo

curprev 18:3718:37, 28 July 2014 Hebrides talk contribs 6,165 bytes +106 fill out reference using AWB undo

curprev 06:5606:56, 22 June 2014 François Robere talk contribs m 6,059 bytes −2 No edit summary undo

curprev 13:2913:29, 19 November 2013 96.239.94.28 talk 6,061 bytes −267 →Example undo
curprev 13:2513:25, 19 November 2013 96.239.94.28 talk 6,328 bytes +267 →Example undo

curprev 19:3919:39, 16 October 2013 141.217.203.151 talk 6,061 bytes +9 Changed weight to make realistic amounts (i.e. from person 28 years old weighing 64 lbs to 164 lbs) undo

curprev 18:0518:05, 29 September 2013 70.99.111.30 talk 6,052 bytes +376 No edit summary undo

curprev 17:5917:59, 28 February 2013 Addbot talk contribs m 5,676 bytes −143 Bot: Migrating 3 interwiki links, now provided by Wikidata on d:q3134666 (Report Errors) undo

curprev 21:4421:44, 22 November 2012 Tijfo098 talk contribs 5,819 bytes +26 →See also: Extended projection undo

curprev 02:3202:32, 8 October 2012 Ptbotgourou talk contribs m 5,793 bytes −14 r2.7.2) (Robot: Modifying ru:Алгебра Кодда#Проекция undo

curprev 02:5902:59, 28 July 2012 Niceguyedc talk contribs m 5,807 bytes −6 WPCleaner v1.14 - Repaired 1 link to disambiguation page - (You can help) - Header undo

curprev 14:2714:27, 31 May 2012 AK456 talk contribs m 5,813 bytes +26 WP:DPL undo

curprev 03:3103:31, 21 May 2012 SchreiberBike talk contribs 5,787 bytes +20 Disambiguation needed for the link Header undo

curprev 19:2319:23, 5 March 2012 Clarkcj12 talk contribs m 5,767 bytes −51 clean up, replaced: <references/> → {{reflist}} using AWB undo

curprev 02:1202:12, 5 February 2012 EmausBot talk contribs m 5,818 bytes +43 r2.6.4) (Robot: Adding fr:Projection (algèbre relationnelle) undo

curprev 09:3809:38, 4 September 2010 RussBot talk contribs m 5,775 bytes +17 Robot: Editing intentional link to disambiguation page in hatnote per WP:INTDABLINK (explanation) undo

curprev 16:2616:26, 17 July 2010 SmackBot talk contribs m 5,758 bytes −6 Date maintenance tags and general fixes: build 424: undo

curprev 13:4113:41, 19 May 2010 EagleFan talk contribs 5,764 bytes −4 Repairing link to disambiguation page - You can help! undo

curprev 13:4913:49, 16 May 2010 Subversive.sound talk contribs 5,768 bytes +24 →Related concepts: Poor wording/grammar undo

curprev 21:5221:52, 18 April 2010 Tablizer talk contribs 5,744 bytes +96 No edit summary undo

curprev 00:1600:16, 11 February 2010 Seaphoto talk contribs 5,648 bytes +79 Supplied reference undo

curprev 16:1916:19, 10 February 2010 129.97.150.93 talk 5,569 bytes +1 →Example undo

curprev 14:4414:44, 31 January 2010 Luckas-bot talk contribs m 5,568 bytes +60 robot Adding: uk:Проекція (реляційна алгебра) undo

curprev 13:5613:56, 17 December 2009 SmackBot talk contribs m 5,508 bytes +27 remove Erik9bot category,outdated, tag and general fixes undo

curprev 20:4920:49, 8 August 2009 Erik9bot talk contribs 5,481 bytes +49 add Category:Articles lacking sources (Erik9bot) undo

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