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SQL exercises

October 17, 05:08 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: 13888

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Krasovskij E.A. (pegoopik)	1	268	192	2026-10-16 18:51:16	2026-10-16 18:51:23	0
2	Safronov P.A. (Paulus73)	117	6	140	2026-10-09 09:42:14	2026-10-15 12:25:59	8804
3	Vinogradova S.M. (Tigra1)	125	4	141	2026-10-10 17:01:15		9367
4	Sarkis'yan G. (gennadi_s)	14	188	208	2026-10-08 15:07:00	2026-10-10 12:57:58	2751
5	Safronov P.A. (Paulus73)	117	6	142	2026-10-08 11:19:23	2026-10-08 22:44:52	685
6	Safronov P.A. (Paulus73)	117	6	139	2026-10-08 10:01:07	2026-10-08 11:01:43	61
7	Safronov P.A. (Paulus73)	117	6	138	2026-10-06 09:41:15	2026-10-07 02:54:18	1033
8	Filippkin D.V. (_dimon_)	2	260	240	2026-10-05 14:13:38	2026-10-06 15:58:40	1545
9	Safronov P.A. (Paulus73)	117	6	53	2026-10-05 09:54:21	2026-10-05 12:48:36	174
10	Vinogradova S.M. (Tigra1)	125	4	140	2026-10-04 15:59:22	2026-10-05 11:25:11	1166
11	Kostomarov A.V. (al29)	5	245	53	2026-09-30 08:53:59		24254
12	Koptel'tsev V. (selber)	18	133	183	2026-09-07 08:11:06		57417
13	Komarov A.N. (Shveda Saulya)	35	68	165	2026-08-28 13:41:52		71486
14	Koptel'tsev V. (selber)	18	133	188	2026-08-21 06:33:00		81995
15	Williams B. (BW)	36	65	252	2026-07-31 13:33:49		111814
16	Williams B. (BW)	36	65	264	2026-07-29 13:21:27		114707
17	Sigankov V.I. (vasilyvanc)	33	72	216	2026-07-23 12:13:08		123415
18	Sigankov V.I. (vasilyvanc)	33	72	241	2026-07-21 14:05:13		126183
19	Zajtsev V.S. (Sleeping)	22	116	241	2026-06-16 18:38:55		176309
20	Chernov D.V. (Kursist)	3	260	241	2026-05-23 20:49:50		210738
21	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		244403
22	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		254631
23	Vyazovetskov A.S. (alex_v)	6	243	264	2026-04-22 19:15:17		255473
24	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		286185
25	Petrov Y. (YuriPetrov)	32	76	210	2026-01-26 17:36:12		379412
26	Lukov D.R. (Gendalf)	248	0	32	2025-12-05 01:36:21		455252
27	Chebykin D. (GriGrim)	39	60	210	2025-07-11 01:12:59		666955
28	Chuvstvin M. (chuvstvinmaxim)	92	9	141	2025-01-29 11:09:56		901078
29	Chuvstvin M. (chuvstvinmaxim)	92	9	258	2025-01-21 00:01:28		913267
30	Lyubomudrov R.G. (born2tilt)	73	20	162	2024-10-10 07:48:40		1061120
31	Lyubomudrov R.G. (born2tilt)	73	20	202	2024-10-09 10:00:37		1062428
32	Frolov K.A. (Murderface_)	136	0	138	2024-09-23 14:49:59		1085178
33	Zajtsev V.S. (Sleeping)	22	116	164	2024-07-09 13:11:22		1194717
34	Slavutinskij V.V. (Vasilko)	456	0	5	2024-04-22 17:26:35		1306782
35	Slavutinskij V.V. (Vasilko)	456	0	7	2024-04-22 17:26:21		1306782
36	Williams B. (BW)	36	65	141	2024-04-02 11:30:28		1335938
37	Kukushkin S.A. (smog)	16	151	194	2024-03-15 01:29:39		1362459
38	Latyntsev N.G. (aks_nsk)	54	35	253	2024-03-05 14:17:51		1376090
39	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	305	2024-01-19 17:35:31		1442133
40	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	306	2024-01-17 10:21:39		1445447
41	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	71	2024-01-15 18:32:03		1447836
42	Nikolaenko A.V. (Shadow77)	82	14	135	2023-12-24 02:07:10		1480501
43	Boiko D. (Angellore)	9	231	262	2023-11-17 19:04:36		1532764
44	Rudikov E. (cubie)	137	0	138	2023-10-31 17:27:54		1557340
45	Shkarednyj I.N. (Gosha)	37	64	198	2023-03-25 21:10:27		1873918
46	Latyntsev N.G. (aks_nsk)	54	35	255	2023-01-12 16:01:39		1977907
47	Koptel'tsev V. (selber)	18	133	237	2022-11-06 21:16:51		2074071
48	Borisenkov D.V. (xuser)	98	9	173	2022-10-10 15:48:20		2113280
49	Lukov D.R. (Gendalf)	248	0	90	2022-07-21 11:18:50		2230189
50	Pavlov A.V. (Anton)	59	29	141	2022-04-10 16:17:39		2376771
51	Sigankov V.I. (vasilyvanc)	33	72	161	2021-10-17 20:21:01		2628527
52	Fedevych V.I. (labuch_fedev)	38	63	221	2021-07-20 17:09:05		2756879
53	Pusev D.V. (Pusev_Denis)	19	132	234	2021-04-18 09:55:08		2891233
54	Kukushkin S.A. (smog)	16	151	12	2021-03-20 02:48:36		2933420
55	Pusev D.V. (Pusev_Denis)	19	132	159	2021-03-17 12:21:10		2937167
56	Kozharinov A. (bubala)	214	0	10	2020-09-30 09:55:07		3179233
57	Samarin A. (not.yet.sql.master)	148	0	112	2020-08-14 15:12:10		3246596
58	Koptel'tsev V. (selber)	18	133	259	2020-06-24 00:22:07		3320926
59	Samarin A. (not.yet.sql.master)	148	0	138	2020-05-09 21:48:04		3385880
60	Karasyova N.V. (vlksm)	10	223	230	2020-05-04 08:57:25		3393851
61	Fedevych V.I. (labuch_fedev)	38	63	226	2020-04-06 22:22:48		3433365
62	Pusev D.V. (Pusev_Denis)	19	132	184	2020-03-21 10:55:32		3457093
63	Fokin A. (Vizitor )	44	50	263	2019-08-18 21:46:14		3767482
64	Bazavluk M. (DoNotLook)	96	9	141	2019-07-30 23:04:12		3794764
65	Romanov K.Yu. (kostik)	313	0	12	2019-07-25 08:42:10		3802826
66	Kordyum A. (alko58)	232	0	12	2019-07-12 15:58:52		3821109
67	Pavlov A.V. (Anton)	59	29	168	2019-06-12 01:20:21		3865188
68	Mal'tsev A.V. (Palkin)	111	8	218	2019-03-06 20:25:17		4005163
69	Kurochkin P.A. (qwrqwr)	12	209	227	2018-12-28 14:37:25		4103431
70	Grishunin M.F. (MikhailFG)	90	10	144	2018-12-26 09:36:27		4106612
71	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4248803
72	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4309350
73	Voevutskij S.A. (SergLK)	220	0	45	2018-07-01 13:19:14		4362709
74	Zyrin V.E. (Vezyr)	553	0	29	2018-05-29 14:14:19		4410174
75	Chebykin D. (GriGrim)	39	60	228	2018-03-26 15:47:45		4502241
76	Shkarednyj I.N. (Gosha)	37	64	151	2018-03-23 22:38:32		4506150
77	Boiko D. (Angellore)	9	231	229	2018-03-23 21:19:51		4506228
78	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4528858
79	Shkarednyj I.N. (Gosha)	37	64	147	2018-02-26 08:13:30		4543015
80	F (uff)	66	23	95	2018-01-22 15:57:03		4592951
81	Aliev R. (y4nzi)	27	93	259	2017-12-17 18:48:39		4644620
82	Kordyum A. (alko58)	232	0	101	2017-11-21 18:18:43		4682090
83	Zajtsev V.S. (Sleeping)	22	116	190	2017-11-20 12:57:31		4683851
84	Aliev R. (y4nzi)	27	93	257	2017-11-19 19:09:17		4684919
85	Aliev R. (y4nzi)	27	93	255	2017-10-24 14:34:21		4722634
86	Kukushkin S.A. (smog)	16	151	171	2017-10-05 18:37:27		4749751
87	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4782814
88	Grinkevich D.L. (Dmitrij Grinkevich)	23	107	115	2017-07-21 14:09:37		4859459
89	Bezhaev A.Yu. (Baser)	8	234	220	2017-06-19 06:24:54		4906003
90	Vorob'ev E.V. (Johnnymnemonic)	165	0	138	2017-06-16 09:15:49		4910152
91	F (uff)	66	23	185	2017-06-01 10:27:49		4931680
92	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		4971553
93	Movlyanov A.P. (Oct)	13	191	218	2017-03-22 18:23:50		5033444
94	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5268348
95	Sysoev A.V. (Sysa)	53	37	165	2016-09-16 00:07:24		5303821
96	Sysoev A.V. (Sysa)	53	37	168	2016-07-22 23:44:07		5383044
97	Karasyova N.V. (vlksm)	10	223	263	2016-04-23 11:28:43		5513380
98	Titovskij P.S. (kli3ma)	46	45	164	2016-03-25 05:49:30		5555479
99	Sivoglazov M.A. (Gaizenberg)	70	22	127	2015-11-28 14:08:52		5724899
100	Maslyaev V.S. (Velmont)	94	9	170	2015-11-06 14:01:20		5756587

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