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SQL exercises

November 05, 22:24 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: 15257

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		9224
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		169752
7	Williams B. (BW)	34	66	262	2025-04-17 12:32:37		291472
8	Fomichev A.V. (Fomichev)	197	0	7	2025-02-25 02:16:37		365528
9	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		373627
10	Chuvstvin M. (chuvstvinmaxim)	88	11	141	2025-01-29 11:09:56		403875
11	Chuvstvin M. (chuvstvinmaxim)	88	11	258	2025-01-21 00:01:28		416063
12	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		563916
13	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		565224
14	Frolov K.A. (Murderface_)	133	0	138	2024-09-23 14:49:59		587975
15	Komarov A.N. (Shveda Saulya)	45	49	157	2024-09-04 13:29:47		615415
16	Zajtsev V.S. (Sleeping)	22	112	164	2024-07-09 13:11:22		697513
17	Slavutinskij V.V. (Vasilko)	447	0	5	2024-04-22 17:26:35		809578
18	Slavutinskij V.V. (Vasilko)	447	0	7	2024-04-22 17:26:21		809578
19	Williams B. (BW)	34	66	141	2024-04-02 11:30:28		838734
20	Kukushkin S.A. (smog)	15	153	194	2024-03-15 01:29:39		865255
21	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		878887
22	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	305	2024-01-19 17:35:31		944929
23	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	306	2024-01-17 10:21:39		948243
24	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	71	2024-01-15 18:32:03		950633
25	Nikolaenko A.V. (Shadow77)	83	14	135	2023-12-24 02:07:10		983297
26	Komarov A.N. (Shveda Saulya)	45	49	150	2023-11-22 17:11:28		1028473
27	Boiko D. (Angellore)	8	233	262	2023-11-17 19:04:36		1035560
28	Rudikov E. (cubie)	134	0	138	2023-10-31 17:27:54		1060137
29	Komarov A.N. (Shveda Saulya)	45	49	149	2023-05-14 13:36:07		1305168
30	Zajtsev V.S. (Sleeping)	22	112	150	2023-04-18 11:40:16		1342724
31	Shkarednyj I.N. (Gosha)	35	66	198	2023-03-25 21:10:27		1376714
32	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1480703
33	Koptel'tsev V. (selber)	21	116	237	2022-11-06 21:16:51		1576868
34	Borisenkov D.V. (xuser)	98	9	173	2022-10-10 15:48:20		1616076
35	Lukov D.R. (Gendalf)	240	0	90	2022-07-21 11:18:50		1732986
36	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		1879567
37	Sigankov V.I. (vasilyvanc)	32	74	161	2021-10-17 20:21:01		2131324
38	Fedevych V.I. (labuch_fedev)	36	65	221	2021-07-20 17:09:05		2259676
39	Pusev D.V. (Pusev_Denis)	17	134	234	2021-04-18 09:55:08		2394029
40	Kukushkin S.A. (smog)	15	153	12	2021-03-20 02:48:36		2436216
41	Pusev D.V. (Pusev_Denis)	17	134	159	2021-03-17 12:21:10		2439963
42	Kozharinov A. (bubala)	207	0	10	2020-09-30 09:55:07		2682029
43	Samarin A. (not.yet.sql.master)	141	0	112	2020-08-14 15:12:10		2749392
44	Koptel'tsev V. (selber)	21	116	259	2020-06-24 00:22:07		2823722
45	Samarin A. (not.yet.sql.master)	141	0	138	2020-05-09 21:48:04		2888677
46	Karasyova N.V. (vlksm)	9	225	230	2020-05-04 08:57:25		2896647
47	Fedevych V.I. (labuch_fedev)	36	65	226	2020-04-06 22:22:48		2936162
48	Pusev D.V. (Pusev_Denis)	17	134	184	2020-03-21 10:55:32		2959889
49	Fokin A. (Vizitor )	43	52	263	2019-08-18 21:46:14		3270278
50	Bazavluk M. (DoNotLook)	96	9	141	2019-07-30 23:04:12		3297560
51	Romanov K.Yu. (kostik)	306	0	12	2019-07-25 08:42:10		3305622
52	Kordyum A. (alko58)	224	0	12	2019-07-12 15:58:52		3323906
53	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3367984
54	Mal'tsev A.V. (Palkin)	111	8	218	2019-03-06 20:25:17		3507959
55	Kurochkin P.A. (qwrqwr)	11	211	227	2018-12-28 14:37:25		3606227
56	Grishunin M.F. (MikhailFG)	92	10	144	2018-12-26 09:36:27		3609408
57	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		3751599
58	Skorohod I. (Dracul4ik)	78	15	45	2018-08-07 14:38:23		3812146
59	Voevutskij S.A. (SergLK)	213	0	45	2018-07-01 13:19:14		3865505
60	Zyrin V.E. (Vezyr)	538	0	29	2018-05-29 14:14:19		3912970
61	Chebykin D. (GriGrim)	38	62	228	2018-03-26 15:47:45		4005037
62	Shkarednyj I.N. (Gosha)	35	66	151	2018-03-23 22:38:32		4008946
63	Boiko D. (Angellore)	8	233	229	2018-03-23 21:19:51		4009025
64	Azbel' E.G. (enull)	77	15	148	2018-03-08 04:10:21		4031654
65	Shkarednyj I.N. (Gosha)	35	66	147	2018-02-26 08:13:30		4045811
66	F (uff)	65	25	95	2018-01-22 15:57:03		4095748
67	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4147416
68	Kordyum A. (alko58)	224	0	101	2017-11-21 18:18:43		4184886
69	Zajtsev V.S. (Sleeping)	22	112	190	2017-11-20 12:57:31		4186647
70	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4187715
71	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4225430
72	Kukushkin S.A. (smog)	15	153	171	2017-10-05 18:37:27		4252547
73	Skorohod I. (Dracul4ik)	78	15	156	2017-09-12 19:34:33		4285610
74	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4362255
75	Bezhaev A.Yu. (Baser)	7	236	220	2017-06-19 06:24:54		4408800
76	Vorob'ev E.V. (Johnnymnemonic)	160	0	138	2017-06-16 09:15:49		4412949
77	F (uff)	65	25	185	2017-06-01 10:27:49		4434477
78	Skorohod I. (Dracul4ik)	78	15	146	2017-05-04 17:54:53		4474350
79	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4536241
80	Skorohod I. (Dracul4ik)	78	15	144	2016-10-10 15:20:14		4771144
81	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		4806617
82	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		4885840
83	Karasyova N.V. (vlksm)	9	225	263	2016-04-23 11:28:43		5016176
84	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5058275
85	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5227696
86	Maslyaev V.S. (Velmont)	90	11	170	2015-11-06 14:01:20		5259383
87	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5293382
88	Fomichev A.V. (Fomichev)	197	0	101	2015-10-07 11:21:04		5302744
89	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5328590
90	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5342894
91	Frolov (dr.shtopor)	81	14	141	2015-09-08 10:04:55		5344580
92	Varenikov D.M. (Dmitriy Varenikov)	18	128	263	2015-08-31 08:35:37		5356189
93	Chebykin D. (GriGrim)	38	62	263	2015-08-28 21:04:30		5359760
94	Halushka B. (halushka)	46	46	211	2015-08-26 13:33:28		5363091
95	Maslyaev V.S. (Velmont)	90	11	140	2015-07-27 05:27:50		5406777
96	Khromulyak O.M. (ChOleg)	120	5	150	2015-07-26 08:20:51		5408044
97	Chebykin D. (GriGrim)	38	62	216	2015-07-20 09:39:02		5416606
98	Halushka B. (halushka)	46	46	143	2015-07-13 15:28:55		5426336
99	Halushka B. (halushka)	46	46	204	2015-07-07 15:42:03		5434963
100	Skorohod I. (Dracul4ik)	78	15	256	2015-01-28 15:03:11		5665401

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