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SQL exercises

November 05, 20:41 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: 15252

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Sarkis'yan G. (gennadi_s)	19	124	184	2025-10-30 12:40:58		9120
2	Varenikov D.M. (Dmitriy Varenikov)	18	128	264	2025-10-27 23:48:59	2025-10-27 23:50:54	2
3	Varenikov D.M. (Dmitriy Varenikov)	18	128	308	2025-10-27 16:55:56	2025-10-27 23:31:04	395
4	Varenikov D.M. (Dmitriy Varenikov)	18	128	175	2022-01-21 11:28:01	2025-10-27 02:35:26	1979467
5	Sarkis'yan G. (gennadi_s)	19	124	183	2025-10-23 18:10:46	2025-10-24 17:33:49	1403
6	Chebykin D. (GriGrim)	38	62	210	2025-07-11 01:12:59		169648
7	Williams B. (BW)	34	66	262	2025-04-17 12:32:37		291369
8	Fomichev A.V. (Fomichev)	197	0	7	2025-02-25 02:16:37		365425
9	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		373523
10	Chuvstvin M. (chuvstvinmaxim)	88	11	141	2025-01-29 11:09:56		403771
11	Chuvstvin M. (chuvstvinmaxim)	88	11	258	2025-01-21 00:01:28		415960
12	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		563812
13	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		565121
14	Frolov K.A. (Murderface_)	133	0	138	2024-09-23 14:49:59		587871
15	Komarov A.N. (Shveda Saulya)	45	49	157	2024-09-04 13:29:47		615311
16	Zajtsev V.S. (Sleeping)	22	112	164	2024-07-09 13:11:22		697410
17	Slavutinskij V.V. (Vasilko)	447	0	5	2024-04-22 17:26:35		809475
18	Slavutinskij V.V. (Vasilko)	447	0	7	2024-04-22 17:26:21		809475
19	Williams B. (BW)	34	66	141	2024-04-02 11:30:28		838631
20	Kukushkin S.A. (smog)	15	153	194	2024-03-15 01:29:39		865151
21	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		878783
22	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	305	2024-01-19 17:35:31		944826
23	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	306	2024-01-17 10:21:39		948139
24	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	71	2024-01-15 18:32:03		950529
25	Nikolaenko A.V. (Shadow77)	83	14	135	2023-12-24 02:07:10		983194
26	Komarov A.N. (Shveda Saulya)	45	49	150	2023-11-22 17:11:28		1028370
27	Boiko D. (Angellore)	8	233	262	2023-11-17 19:04:36		1035457
28	Rudikov E. (cubie)	134	0	138	2023-10-31 17:27:54		1060033
29	Komarov A.N. (Shveda Saulya)	45	49	149	2023-05-14 13:36:07		1305065
30	Zajtsev V.S. (Sleeping)	22	112	150	2023-04-18 11:40:16		1342621
31	Shkarednyj I.N. (Gosha)	35	66	198	2023-03-25 21:10:27		1376611
32	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1480599
33	Koptel'tsev V. (selber)	21	116	237	2022-11-06 21:16:51		1576764
34	Borisenkov D.V. (xuser)	98	9	173	2022-10-10 15:48:20		1615973
35	Lukov D.R. (Gendalf)	240	0	90	2022-07-21 11:18:50		1732882
36	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		1879463
37	Sigankov V.I. (vasilyvanc)	32	74	161	2021-10-17 20:21:01		2131220
38	Fedevych V.I. (labuch_fedev)	36	65	221	2021-07-20 17:09:05		2259572
39	Pusev D.V. (Pusev_Denis)	17	134	234	2021-04-18 09:55:08		2393926
40	Kukushkin S.A. (smog)	15	153	12	2021-03-20 02:48:36		2436113
41	Pusev D.V. (Pusev_Denis)	17	134	159	2021-03-17 12:21:10		2439860
42	Kozharinov A. (bubala)	207	0	10	2020-09-30 09:55:07		2681926
43	Samarin A. (not.yet.sql.master)	141	0	112	2020-08-14 15:12:10		2749289
44	Koptel'tsev V. (selber)	21	116	259	2020-06-24 00:22:07		2823619
45	Samarin A. (not.yet.sql.master)	141	0	138	2020-05-09 21:48:04		2888573
46	Karasyova N.V. (vlksm)	9	225	230	2020-05-04 08:57:25		2896544
47	Fedevych V.I. (labuch_fedev)	36	65	226	2020-04-06 22:22:48		2936058
48	Pusev D.V. (Pusev_Denis)	17	134	184	2020-03-21 10:55:32		2959786
49	Fokin A. (Vizitor )	43	52	263	2019-08-18 21:46:14		3270175
50	Bazavluk M. (DoNotLook)	96	9	141	2019-07-30 23:04:12		3297457
51	Romanov K.Yu. (kostik)	306	0	12	2019-07-25 08:42:10		3305519
52	Kordyum A. (alko58)	224	0	12	2019-07-12 15:58:52		3323802
53	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3367881
54	Mal'tsev A.V. (Palkin)	111	8	218	2019-03-06 20:25:17		3507856
55	Kurochkin P.A. (qwrqwr)	11	211	227	2018-12-28 14:37:25		3606124
56	Grishunin M.F. (MikhailFG)	92	10	144	2018-12-26 09:36:27		3609305
57	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		3751496
58	Skorohod I. (Dracul4ik)	78	15	45	2018-08-07 14:38:23		3812043
59	Voevutskij S.A. (SergLK)	213	0	45	2018-07-01 13:19:14		3865402
60	Zyrin V.E. (Vezyr)	538	0	29	2018-05-29 14:14:19		3912867
61	Chebykin D. (GriGrim)	38	62	228	2018-03-26 15:47:45		4004933
62	Shkarednyj I.N. (Gosha)	35	66	151	2018-03-23 22:38:32		4008843
63	Boiko D. (Angellore)	8	233	229	2018-03-23 21:19:51		4008921
64	Azbel' E.G. (enull)	77	15	148	2018-03-08 04:10:21		4031551
65	Shkarednyj I.N. (Gosha)	35	66	147	2018-02-26 08:13:30		4045708
66	F (uff)	65	25	95	2018-01-22 15:57:03		4095644
67	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4147312
68	Kordyum A. (alko58)	224	0	101	2017-11-21 18:18:43		4184782
69	Zajtsev V.S. (Sleeping)	22	112	190	2017-11-20 12:57:31		4186544
70	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4187612
71	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4225327
72	Kukushkin S.A. (smog)	15	153	171	2017-10-05 18:37:27		4252444
73	Skorohod I. (Dracul4ik)	78	15	156	2017-09-12 19:34:33		4285507
74	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4362152
75	Bezhaev A.Yu. (Baser)	7	236	220	2017-06-19 06:24:54		4408696
76	Vorob'ev E.V. (Johnnymnemonic)	160	0	138	2017-06-16 09:15:49		4412845
77	F (uff)	65	25	185	2017-06-01 10:27:49		4434373
78	Skorohod I. (Dracul4ik)	78	15	146	2017-05-04 17:54:53		4474246
79	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4536137
80	Skorohod I. (Dracul4ik)	78	15	144	2016-10-10 15:20:14		4771041
81	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		4806514
82	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		4885737
83	Karasyova N.V. (vlksm)	9	225	263	2016-04-23 11:28:43		5016072
84	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5058172
85	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5227592
86	Maslyaev V.S. (Velmont)	90	11	170	2015-11-06 14:01:20		5259280
87	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5293279
88	Fomichev A.V. (Fomichev)	197	0	101	2015-10-07 11:21:04		5302640
89	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5328486
90	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5342790
91	Frolov (dr.shtopor)	81	14	141	2015-09-08 10:04:55		5344476
92	Varenikov D.M. (Dmitriy Varenikov)	18	128	263	2015-08-31 08:35:37		5356086
93	Chebykin D. (GriGrim)	38	62	263	2015-08-28 21:04:30		5359657
94	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5362988
95	Maslyaev V.S. (Velmont)	90	11	140	2015-07-27 05:27:50		5406673
96	Khromulyak O.M. (ChOleg)	120	5	150	2015-07-26 08:20:51		5407940
97	Chebykin D. (GriGrim)	38	62	216	2015-07-20 09:39:02		5416502
98	Halushka B. (halushka)	46	46	143	2015-07-13 15:28:55		5426232
99	Halushka B. (halushka)	46	46	204	2015-07-07 15:42:03		5434859
100	Skorohod I. (Dracul4ik)	78	15	256	2015-01-28 15:03:11		5665298

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