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SQL exercises

July 08, 11:37 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: 15122

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Makarov I.A. (_Bkmz_)	67	23	177	2025-07-06 09:38:39	2025-07-06 11:56:40	138
2	Makarov I.A. (_Bkmz_)	67	23	166	2025-07-05 10:06:56	2025-07-05 10:51:15	44
3	Sarkis'yan G. (gennadi_s)	24	99	175	2025-07-04 14:31:46		5586
4	Sarkis'yan G. (gennadi_s)	24	99	174	2025-06-29 14:46:07	2025-06-30 13:01:05	1335
5	Makarov I.A. (_Bkmz_)	67	23	170	2025-06-29 10:21:01	2025-06-29 12:50:43	150
6	Makarov I.A. (_Bkmz_)	67	23	204	2025-06-28 10:03:44	2025-06-28 12:34:50	151
7	Sarkis'yan G. (gennadi_s)	24	99	173	2025-06-22 15:29:39	2025-06-27 10:00:13	6871
8	Williams B. (BW)	34	66	262	2025-04-17 12:32:37		118025
9	Fomichev A.V. (Fomichev)	195	0	7	2025-02-25 02:16:37		192081
10	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		200180
11	Chuvstvin M. (chuvstvinmaxim)	88	11	141	2025-01-29 11:09:56		230428
12	Chuvstvin M. (chuvstvinmaxim)	88	11	258	2025-01-21 00:01:28		242617
13	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		390469
14	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		391777
15	Frolov K.A. (Murderface_)	133	0	138	2024-09-23 14:49:59		414528
16	Komarov A.N. (Shveda Saulya)	45	49	157	2024-09-04 13:29:47		441968
17	Zajtsev V.S. (Sleeping)	21	112	164	2024-07-09 13:11:22		524067
18	Slavutinskij V.V. (Vasilko)	446	0	5	2024-04-22 17:26:35		636131
19	Slavutinskij V.V. (Vasilko)	446	0	7	2024-04-22 17:26:21		636132
20	Williams B. (BW)	34	66	141	2024-04-02 11:30:28		665288
21	Kukushkin S.A. (smog)	15	153	194	2024-03-15 01:29:39		691808
22	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		705440
23	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	305	2024-01-19 17:35:31		771482
24	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	306	2024-01-17 10:21:39		774796
25	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	71	2024-01-15 18:32:03		777186
26	Nikolaenko A.V. (Shadow77)	83	14	135	2023-12-24 02:07:10		809851
27	Komarov A.N. (Shveda Saulya)	45	49	150	2023-11-22 17:11:28		855027
28	Boiko D. (Angellore)	8	233	262	2023-11-17 19:04:36		862113
29	Rudikov E. (cubie)	134	0	138	2023-10-31 17:27:54		886690
30	Komarov A.N. (Shveda Saulya)	45	49	149	2023-05-14 13:36:07		1131722
31	Zajtsev V.S. (Sleeping)	21	112	150	2023-04-18 11:40:16		1169278
32	Shkarednyj I.N. (Gosha)	35	66	198	2023-03-25 21:10:27		1203268
33	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1307256
34	Koptel'tsev V. (selber)	20	113	237	2022-11-06 21:16:51		1403421
35	Borisenkov D.V. (xuser)	98	9	173	2022-10-10 15:48:20		1442630
36	Lukov D.R. (Gendalf)	240	0	90	2022-07-21 11:18:50		1559539
37	Pavlov A.V. (Anton)	59	29	141	2022-04-10 16:17:39		1706120
38	Varenikov D.M. (Dmitriy Varenikov)	18	125	175	2022-01-21 11:28:01		1820170
39	Sigankov V.I. (vasilyvanc)	32	74	161	2021-10-17 20:21:01		1957877
40	Fedevych V.I. (labuch_fedev)	36	65	221	2021-07-20 17:09:05		2086229
41	Pusev D.V. (Pusev_Denis)	17	134	234	2021-04-18 09:55:08		2220583
42	Kukushkin S.A. (smog)	15	153	12	2021-03-20 02:48:36		2262769
43	Pusev D.V. (Pusev_Denis)	17	134	159	2021-03-17 12:21:10		2266517
44	Kozharinov A. (bubala)	206	0	10	2020-09-30 09:55:07		2508583
45	Samarin A. (not.yet.sql.master)	139	0	112	2020-08-14 15:12:10		2575946
46	Koptel'tsev V. (selber)	20	113	259	2020-06-24 00:22:07		2650276
47	Samarin A. (not.yet.sql.master)	139	0	138	2020-05-09 21:48:04		2715230
48	Karasyova N.V. (vlksm)	9	225	230	2020-05-04 08:57:25		2723201
49	Fedevych V.I. (labuch_fedev)	36	65	226	2020-04-06 22:22:48		2762715
50	Pusev D.V. (Pusev_Denis)	17	134	184	2020-03-21 10:55:32		2786442
51	Fokin A. (Vizitor )	43	52	263	2019-08-18 21:46:14		3096832
52	Bazavluk M. (DoNotLook)	96	9	141	2019-07-30 23:04:12		3124114
53	Romanov K.Yu. (kostik)	304	0	12	2019-07-25 08:42:10		3132176
54	Kordyum A. (alko58)	224	0	12	2019-07-12 15:58:52		3150459
55	Pavlov A.V. (Anton)	59	29	168	2019-06-12 01:20:21		3194538
56	Mal'tsev A.V. (Palkin)	111	8	218	2019-03-06 20:25:17		3334513
57	Kurochkin P.A. (qwrqwr)	11	211	227	2018-12-28 14:37:25		3432781
58	Grishunin M.F. (MikhailFG)	92	10	144	2018-12-26 09:36:27		3435962
59	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		3578153
60	Skorohod I. (Dracul4ik)	78	15	45	2018-08-07 14:38:23		3638700
61	Voevutskij S.A. (SergLK)	211	0	45	2018-07-01 13:19:14		3692059
62	Zyrin V.E. (Vezyr)	537	0	29	2018-05-29 14:14:19		3739524
63	Chebykin D. (GriGrim)	38	62	228	2018-03-26 15:47:45		3831590
64	Shkarednyj I.N. (Gosha)	35	66	151	2018-03-23 22:38:32		3835499
65	Boiko D. (Angellore)	8	233	229	2018-03-23 21:19:51		3835578
66	Azbel' E.G. (enull)	77	15	148	2018-03-08 04:10:21		3858208
67	Shkarednyj I.N. (Gosha)	35	66	147	2018-02-26 08:13:30		3872364
68	F (uff)	64	25	95	2018-01-22 15:57:03		3922301
69	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		3973969
70	Kordyum A. (alko58)	224	0	101	2017-11-21 18:18:43		4011439
71	Zajtsev V.S. (Sleeping)	21	112	190	2017-11-20 12:57:31		4013200
72	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4014269
73	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4051984
74	Kukushkin S.A. (smog)	15	153	171	2017-10-05 18:37:27		4079101
75	Skorohod I. (Dracul4ik)	78	15	156	2017-09-12 19:34:33		4112163
76	Grinkevich D.L. (Dmitrij Grinkevich)	22	109	115	2017-07-21 14:09:37		4188808
77	Bezhaev A.Yu. (Baser)	7	236	220	2017-06-19 06:24:54		4235353
78	Vorob'ev E.V. (Johnnymnemonic)	158	0	138	2017-06-16 09:15:49		4239502
79	F (uff)	64	25	185	2017-06-01 10:27:49		4261030
80	Skorohod I. (Dracul4ik)	78	15	146	2017-05-04 17:54:53		4300903
81	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4362794
82	Skorohod I. (Dracul4ik)	78	15	144	2016-10-10 15:20:14		4597698
83	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		4633171
84	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		4712394
85	Karasyova N.V. (vlksm)	9	225	263	2016-04-23 11:28:43		4842729
86	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		4884828
87	Sivoglazov M.A. (Gaizenberg)	65	24	127	2015-11-28 14:08:52		5054249
88	Maslyaev V.S. (Velmont)	90	11	170	2015-11-06 14:01:20		5085937
89	Sivoglazov M.A. (Gaizenberg)	65	24	261	2015-10-13 23:22:26		5119936
90	Fomichev A.V. (Fomichev)	195	0	101	2015-10-07 11:21:04		5129297
91	Grinkevich D.L. (Dmitrij Grinkevich)	22	109	188	2015-09-19 12:34:48		5155143
92	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5169447
93	Frolov (dr.shtopor)	81	14	141	2015-09-08 10:04:55		5171133
94	Varenikov D.M. (Dmitriy Varenikov)	18	125	263	2015-08-31 08:35:37		5182742
95	Chebykin D. (GriGrim)	38	62	263	2015-08-28 21:04:30		5186313
96	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5189645
97	Maslyaev V.S. (Velmont)	90	11	140	2015-07-27 05:27:50		5233330
98	Khromulyak O.M. (ChOleg)	120	5	150	2015-07-26 08:20:51		5234597
99	Chebykin D. (GriGrim)	38	62	216	2015-07-20 09:39:02		5243159
100	Halushka B. (halushka)	46	46	143	2015-07-13 15:28:55		5252889

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