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SQL exercises

September 09, 12:44 MSK

SQL Exercises is intended for acquiring good practical experience, which is focused on data operation, namely on SQL DML. Certain exercises for beginners are provided on the site, they are supplied with the necessary reference source on SQL syntax with a great number of examples. Apart from them, 3 rating stages are suggested, they are aimed at testing of specialists and their certification. The source is absolutely free of charge, and the certificate purchase has a voluntary basis.
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SQL exercises

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Recent leaders activity

Rating - rating position;
3rd score - number of points earned on the third stage;
Ex - exercise's number;
Start - time when the exercise was started;
Finish - time when the exercise was solved;
S_time (min) - time in minutes spent for solving the exercise

Involved in rating: 15169

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Sarkis'yan G. (gennadi_s)	14	184	207	2026-09-08 14:40:13		1324
2	Koptel'tsev V. (selber)	19	133	183	2026-09-07 08:11:06		3153
3	Vinogradova S.M. (Tigra1)	148	0	138	2026-09-06 14:09:20		4235
4	Vinogradova S.M. (Tigra1)	148	0	137	2026-08-30 14:15:52	2026-08-31 22:19:52	1924
5	Vinogradova S.M. (Tigra1)	148	0	136	2026-08-28 10:40:33	2026-08-29 10:38:18	1438
6	Komarov A.N. (Shveda Saulya)	35	68	165	2026-08-28 13:41:52		17222
7	Koptel'tsev V. (selber)	19	133	188	2026-08-21 06:33:00		27731
8	Williams B. (BW)	36	67	252	2026-07-31 13:33:49		57550
9	Williams B. (BW)	36	67	264	2026-07-29 13:21:27		60443
10	Sigankov V.I. (vasilyvanc)	33	74	216	2026-07-23 12:13:08		69151
11	Sigankov V.I. (vasilyvanc)	33	74	241	2026-07-21 14:05:13		71919
12	Zajtsev V.S. (Sleeping)	22	118	241	2026-06-16 18:38:55		122045
13	Chernov D.V. (Kursist)	2	262	241	2026-05-23 20:49:50		156474
14	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		190139
15	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		200367
16	Vyazovetskov A.S. (alex_v)	6	245	264	2026-04-22 19:15:17		201209
17	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		231921
18	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		325148
19	Lukov D.R. (Gendalf)	247	0	32	2025-12-05 01:36:21		400988
20	Chebykin D. (GriGrim)	39	62	210	2025-07-11 01:12:59		612691
21	Chuvstvin M. (chuvstvinmaxim)	89	11	141	2025-01-29 11:09:56		846814
22	Chuvstvin M. (chuvstvinmaxim)	89	11	258	2025-01-21 00:01:28		859003
23	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		1006856
24	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		1008164
25	Frolov K.A. (Murderface_)	135	0	138	2024-09-23 14:49:59		1030914
26	Zajtsev V.S. (Sleeping)	22	118	164	2024-07-09 13:11:22		1140453
27	Slavutinskij V.V. (Vasilko)	455	0	5	2024-04-22 17:26:35		1252518
28	Slavutinskij V.V. (Vasilko)	455	0	7	2024-04-22 17:26:21		1252518
29	Williams B. (BW)	36	67	141	2024-04-02 11:30:28		1281674
30	Kukushkin S.A. (smog)	16	153	194	2024-03-15 01:29:39		1308195
31	Latyntsev N.G. (aks_nsk)	54	37	253	2024-03-05 14:17:51		1321826
32	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	305	2024-01-19 17:35:31		1387869
33	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	306	2024-01-17 10:21:39		1391183
34	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	71	2024-01-15 18:32:03		1393572
35	Nikolaenko A.V. (Shadow77)	84	14	135	2023-12-24 02:07:10		1426237
36	Boiko D. (Angellore)	9	233	262	2023-11-17 19:04:36		1478500
37	Rudikov E. (cubie)	136	0	138	2023-10-31 17:27:54		1503076
38	Shkarednyj I.N. (Gosha)	37	66	198	2023-03-25 21:10:27		1819654
39	Latyntsev N.G. (aks_nsk)	54	37	255	2023-01-12 16:01:39		1923643
40	Koptel'tsev V. (selber)	19	133	237	2022-11-06 21:16:51		2019807
41	Borisenkov D.V. (xuser)	99	9	173	2022-10-10 15:48:20		2059016
42	Lukov D.R. (Gendalf)	247	0	90	2022-07-21 11:18:50		2175925
43	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2322507
44	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2574263
45	Fedevych V.I. (labuch_fedev)	38	65	221	2021-07-20 17:09:05		2702615
46	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2836969
47	Kukushkin S.A. (smog)	16	153	12	2021-03-20 02:48:36		2879156
48	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2882903
49	Kozharinov A. (bubala)	213	0	10	2020-09-30 09:55:07		3124969
50	Samarin A. (not.yet.sql.master)	147	0	112	2020-08-14 15:12:10		3192332
51	Koptel'tsev V. (selber)	19	133	259	2020-06-24 00:22:07		3266662
52	Samarin A. (not.yet.sql.master)	147	0	138	2020-05-09 21:48:04		3331616
53	Karasyova N.V. (vlksm)	10	225	230	2020-05-04 08:57:25		3339587
54	Fedevych V.I. (labuch_fedev)	38	65	226	2020-04-06 22:22:48		3379101
55	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3402829
56	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3713218
57	Bazavluk M. (DoNotLook)	97	9	141	2019-07-30 23:04:12		3740500
58	Romanov K.Yu. (kostik)	312	0	12	2019-07-25 08:42:10		3748562
59	Kordyum A. (alko58)	231	0	12	2019-07-12 15:58:52		3766845
60	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3810924
61	Mal'tsev A.V. (Palkin)	112	8	218	2019-03-06 20:25:17		3950899
62	Kurochkin P.A. (qwrqwr)	12	211	227	2018-12-28 14:37:25		4049167
63	Grishunin M.F. (MikhailFG)	93	10	144	2018-12-26 09:36:27		4052348
64	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4194539
65	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4255086
66	Voevutskij S.A. (SergLK)	219	0	45	2018-07-01 13:19:14		4308445
67	Zyrin V.E. (Vezyr)	553	0	29	2018-05-29 14:14:19		4355910
68	Chebykin D. (GriGrim)	39	62	228	2018-03-26 15:47:45		4447976
69	Shkarednyj I.N. (Gosha)	37	66	151	2018-03-23 22:38:32		4451886
70	Boiko D. (Angellore)	9	233	229	2018-03-23 21:19:51		4451964
71	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4474594
72	Shkarednyj I.N. (Gosha)	37	66	147	2018-02-26 08:13:30		4488751
73	F (uff)	65	25	95	2018-01-22 15:57:03		4538687
74	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4590356
75	Kordyum A. (alko58)	231	0	101	2017-11-21 18:18:43		4627825
76	Zajtsev V.S. (Sleeping)	22	118	190	2017-11-20 12:57:31		4629587
77	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4630655
78	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4668370
79	Kukushkin S.A. (smog)	16	153	171	2017-10-05 18:37:27		4695487
80	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4728550
81	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4805195
82	Bezhaev A.Yu. (Baser)	8	236	220	2017-06-19 06:24:54		4851739
83	Vorob'ev E.V. (Johnnymnemonic)	165	0	138	2017-06-16 09:15:49		4855888
84	F (uff)	65	25	185	2017-06-01 10:27:49		4877416
85	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		4917289
86	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4979180
87	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5214084
88	Sysoev A.V. (Sysa)	50	39	165	2016-09-16 00:07:24		5249557
89	Sysoev A.V. (Sysa)	50	39	168	2016-07-22 23:44:07		5328780
90	Karasyova N.V. (vlksm)	10	225	263	2016-04-23 11:28:43		5459115
91	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5501215
92	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5670635
93	Maslyaev V.S. (Velmont)	91	11	170	2015-11-06 14:01:20		5702323
94	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5736322
95	Fomichev A.V. (Fomichev)	200	0	101	2015-10-07 11:21:04		5745683
96	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5771529
97	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5785833
98	Frolov (dr.shtopor)	82	14	141	2015-09-08 10:04:55		5787519
99	Varenikov D.M. (Dmitriy Varenikov)	20	130	263	2015-08-31 08:35:37		5799129
100	Chebykin D. (GriGrim)	39	62	263	2015-08-28 21:04:30		5802700

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