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SQL exercises

August 17, 22:40 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: 15148

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Sarkis'yan G. (gennadi_s)	15	180	206	2026-08-15 14:26:50		3373
2	Sarkis'yan G. (gennadi_s)	15	180	205	2026-08-07 13:45:21	2026-08-10 17:09:13	4524
3	Sarkis'yan G. (gennadi_s)	15	180	204	2026-08-04 12:34:26	2026-08-04 13:41:32	67
4	Williams B. (BW)	35	67	252	2026-07-31 13:33:49		25026
5	Williams B. (BW)	35	67	264	2026-07-29 13:21:27		27919
6	Sigankov V.I. (vasilyvanc)	33	74	216	2026-07-23 12:13:08		36627
7	Sigankov V.I. (vasilyvanc)	33	74	241	2026-07-21 14:05:13		39395
8	Zajtsev V.S. (Sleeping)	22	118	241	2026-06-16 18:38:55		89521
9	Chernov D.V. (Kursist)	2	262	241	2026-05-23 20:49:50		123950
10	Komarov A.N. (Shveda Saulya)	37	65	160	2026-05-09 13:24:21		144556
11	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		157615
12	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		167843
13	Vyazovetskov A.S. (alex_v)	6	245	264	2026-04-22 19:15:17		168685
14	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		199397
15	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		292624
16	Lukov D.R. (Gendalf)	247	0	32	2025-12-05 01:36:21		368464
17	Chebykin D. (GriGrim)	39	62	210	2025-07-11 01:12:59		580167
18	Chuvstvin M. (chuvstvinmaxim)	89	11	141	2025-01-29 11:09:56		814290
19	Chuvstvin M. (chuvstvinmaxim)	89	11	258	2025-01-21 00:01:28		826479
20	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		974332
21	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		975640
22	Frolov K.A. (Murderface_)	135	0	138	2024-09-23 14:49:59		998390
23	Zajtsev V.S. (Sleeping)	22	118	164	2024-07-09 13:11:22		1107929
24	Slavutinskij V.V. (Vasilko)	455	0	5	2024-04-22 17:26:35		1219994
25	Slavutinskij V.V. (Vasilko)	455	0	7	2024-04-22 17:26:21		1219994
26	Williams B. (BW)	35	67	141	2024-04-02 11:30:28		1249150
27	Kukushkin S.A. (smog)	16	153	194	2024-03-15 01:29:39		1275671
28	Latyntsev N.G. (aks_nsk)	54	37	253	2024-03-05 14:17:51		1289302
29	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	305	2024-01-19 17:35:31		1355345
30	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	306	2024-01-17 10:21:39		1358659
31	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	71	2024-01-15 18:32:03		1361048
32	Nikolaenko A.V. (Shadow77)	84	14	135	2023-12-24 02:07:10		1393713
33	Boiko D. (Angellore)	9	233	262	2023-11-17 19:04:36		1445976
34	Rudikov E. (cubie)	136	0	138	2023-10-31 17:27:54		1470552
35	Shkarednyj I.N. (Gosha)	36	66	198	2023-03-25 21:10:27		1787130
36	Latyntsev N.G. (aks_nsk)	54	37	255	2023-01-12 16:01:39		1891119
37	Koptel'tsev V. (selber)	19	133	237	2022-11-06 21:16:51		1987283
38	Borisenkov D.V. (xuser)	99	9	173	2022-10-10 15:48:20		2026492
39	Lukov D.R. (Gendalf)	247	0	90	2022-07-21 11:18:50		2143401
40	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2289983
41	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2541739
42	Fedevych V.I. (labuch_fedev)	38	65	221	2021-07-20 17:09:05		2670091
43	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2804445
44	Kukushkin S.A. (smog)	16	153	12	2021-03-20 02:48:36		2846632
45	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2850379
46	Kozharinov A. (bubala)	213	0	10	2020-09-30 09:55:07		3092445
47	Samarin A. (not.yet.sql.master)	147	0	112	2020-08-14 15:12:10		3159808
48	Koptel'tsev V. (selber)	19	133	259	2020-06-24 00:22:07		3234138
49	Samarin A. (not.yet.sql.master)	147	0	138	2020-05-09 21:48:04		3299092
50	Karasyova N.V. (vlksm)	10	225	230	2020-05-04 08:57:25		3307063
51	Fedevych V.I. (labuch_fedev)	38	65	226	2020-04-06 22:22:48		3346577
52	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3370305
53	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3680694
54	Bazavluk M. (DoNotLook)	97	9	141	2019-07-30 23:04:12		3707976
55	Romanov K.Yu. (kostik)	312	0	12	2019-07-25 08:42:10		3716038
56	Kordyum A. (alko58)	231	0	12	2019-07-12 15:58:52		3734321
57	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3778400
58	Mal'tsev A.V. (Palkin)	112	8	218	2019-03-06 20:25:17		3918375
59	Kurochkin P.A. (qwrqwr)	12	211	227	2018-12-28 14:37:25		4016643
60	Grishunin M.F. (MikhailFG)	93	10	144	2018-12-26 09:36:27		4019824
61	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4162015
62	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4222562
63	Voevutskij S.A. (SergLK)	219	0	45	2018-07-01 13:19:14		4275921
64	Zyrin V.E. (Vezyr)	552	0	29	2018-05-29 14:14:19		4323386
65	Chebykin D. (GriGrim)	39	62	228	2018-03-26 15:47:45		4415452
66	Shkarednyj I.N. (Gosha)	36	66	151	2018-03-23 22:38:32		4419362
67	Boiko D. (Angellore)	9	233	229	2018-03-23 21:19:51		4419440
68	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4442070
69	Shkarednyj I.N. (Gosha)	36	66	147	2018-02-26 08:13:30		4456227
70	F (uff)	65	25	95	2018-01-22 15:57:03		4506163
71	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4557832
72	Kordyum A. (alko58)	231	0	101	2017-11-21 18:18:43		4595301
73	Zajtsev V.S. (Sleeping)	22	118	190	2017-11-20 12:57:31		4597063
74	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4598131
75	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4635846
76	Kukushkin S.A. (smog)	16	153	171	2017-10-05 18:37:27		4662963
77	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4696026
78	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4772671
79	Bezhaev A.Yu. (Baser)	8	236	220	2017-06-19 06:24:54		4819215
80	Vorob'ev E.V. (Johnnymnemonic)	165	0	138	2017-06-16 09:15:49		4823364
81	F (uff)	65	25	185	2017-06-01 10:27:49		4844892
82	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		4884765
83	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4946656
84	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5181560
85	Sysoev A.V. (Sysa)	50	39	165	2016-09-16 00:07:24		5217033
86	Sysoev A.V. (Sysa)	50	39	168	2016-07-22 23:44:07		5296256
87	Karasyova N.V. (vlksm)	10	225	263	2016-04-23 11:28:43		5426591
88	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5468691
89	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5638111
90	Maslyaev V.S. (Velmont)	91	11	170	2015-11-06 14:01:20		5669799
91	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5703798
92	Fomichev A.V. (Fomichev)	200	0	101	2015-10-07 11:21:04		5713159
93	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5739005
94	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5753309
95	Frolov (dr.shtopor)	82	14	141	2015-09-08 10:04:55		5754995
96	Varenikov D.M. (Dmitriy Varenikov)	20	130	263	2015-08-31 08:35:37		5766605
97	Chebykin D. (GriGrim)	39	62	263	2015-08-28 21:04:30		5770176
98	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5773507
99	Maslyaev V.S. (Velmont)	91	11	140	2015-07-27 05:27:50		5817192
100	Khromulyak O.M. (ChOleg)	121	5	150	2015-07-26 08:20:51		5818459

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