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join Questions

2	Last 7 Days	50% unanswered
12	Last 30 Days	33.3% unanswered
1,647	All Time	15.5% unanswered

Top join Answerers

Last 30 Days

5	1	Josh Darnell 20.6k5 gold badges42 silver badges83 bronze badges
4	2	Akina 12.4k2 gold badges6 silver badges13 bronze badges
3	2	bbaird 9972 silver badges12 bronze badges
3	1	Nikita 1,0881 gold badge2 silver badges9 bronze badges
2	1	Pork 1212 bronze badges
1	1	emmmphd 1263 bronze badges
1	1	Alf47 8917 silver badges18 bronze badges
1	2	Phill W. 3,4416 silver badges10 bronze badges

All Time

431	103	Erwin Brandstetter 120k16 gold badges268 silver badges410 bronze badges
407	129	ypercubeᵀᴹ 86.5k11 gold badges155 silver badges247 bronze badges
272	63	RolandoMySQLDBA 158k26 gold badges260 silver badges435 bronze badges
218	17	Paul White 9♦ 55.8k16 gold badges342 silver badges521 bronze badges
209	32	a_horse_with_no_name 56.3k11 gold badges109 silver badges139 bronze badges
185	14	Martin Smith 74.4k11 gold badges208 silver badges299 bronze badges
135	25	Aaron Bertrand♦ 167k22 gold badges348 silver badges551 bronze badges
107	14	Max Vernon 61.8k13 gold badges135 silver badges267 bronze badges
94	13	gbn 67k7 gold badges149 silver badges229 bronze badges
94	115	Rick James 54.6k3 gold badges32 silver badges76 bronze badges
92	34	McNets 20.5k7 gold badges33 silver badges69 bronze badges
84	22	Andriy M 18.7k6 gold badges44 silver badges85 bronze badges
75	50	Lennart 18.2k2 gold badges16 silver badges48 bronze badges
72	10	Rob Farley 14.8k2 gold badges30 silver badges54 bronze badges
65	30	Evan Carroll 45.6k21 gold badges139 silver badges321 bronze badges
56	27	RDFozz 10.9k3 gold badges18 silver badges34 bronze badges
53	2	Jon Seigel 16.3k6 gold badges40 silver badges81 bronze badges
52	13	Daniel Hutmacher 8,4801 gold badge18 silver badges51 bronze badges
50	10	Taryn♦ 9,1013 gold badges39 silver badges71 bronze badges
48	23	joanolo 11.4k6 gold badges27 silver badges58 bronze badges

Top join Askers

Last 30 Days

1	1	Joe Enos 1355 bronze badges
1	1	Alf47 8917 silver badges18 bronze badges

All Time

84	2	Michael Richardson 9571 gold badge7 silver badges9 bronze badges
79	1	sudo.ie 8911 gold badge7 silver badges5 bronze badges
59	2	Shaul Behr 2,5457 gold badges27 silver badges39 bronze badges
55	2	Erwin Brandstetter 120k16 gold badges268 silver badges410 bronze badges
55	2	jackhammer013 7111 gold badge8 silver badges11 bronze badges
46	1	Martin 2,3214 gold badges20 silver badges31 bronze badges
41	16	Googlebot 3,58317 gold badges52 silver badges76 bronze badges
41	1	Daniel Hutmacher 8,4801 gold badge18 silver badges51 bronze badges
40	2	David LeBauer 2,8136 gold badges26 silver badges32 bronze badges
40	2	Pratyush Dhanuka 5091 gold badge4 silver badges9 bronze badges
35	1	Julien 5091 gold badge4 silver badges7 bronze badges
27	1	Stephane Rolland 5,6537 gold badges25 silver badges37 bronze badges
26	1	Erik Bergstedt 3873 silver badges9 bronze badges
25	3	crokusek 1,8073 gold badges17 silver badges29 bronze badges
25	1	Tom Ellis 1,0592 gold badges11 silver badges11 bronze badges
21	1	Geoff Patterson 7,9471 gold badge23 silver badges51 bronze badges
21	1	mpag 9035 silver badges18 bronze badges
20	1	Jeremy Boyd 6572 gold badges6 silver badges13 bronze badges
20	1	Kokizzu 9532 gold badges12 silver badges27 bronze badges
19	1	Kerrek SB 2932 silver badges6 bronze badges

Only non community-wiki questions and answers are included in these totals (updated daily)

1,647

questions tagged

join

Synonyms

outer-join
join-conditions
full-outer-join
inner-join

join × 1647
mysql × 630
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postgresql × 299
performance × 188
oracle × 103
select × 94
subquery × 93
group-by × 82
optimization × 81
query-performance × 80
query × 79
count × 59
index × 55
t-sql × 53
update × 49
aggregate × 42
union × 41
database-design × 35
mariadb × 31
view × 31
foreign-key × 30
execution-plan × 28
sql-server-2008 × 25
innodb × 24

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