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SQL exercises

December 21, 15:29 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: 14884

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Sarkis'yan G. (gennadi_s)	40	55	156	2024-12-20 15:15:56		1454
2	Makarov I.A. (_Bkmz_)	93	9	69	2024-12-19 11:59:31	2024-12-19 19:50:19	471
3	Sarkis'yan G. (gennadi_s)	40	55	155	2024-11-25 14:46:03	2024-12-19 09:57:37	34272
4	Makarov I.A. (_Bkmz_)	93	9	90	2024-12-18 12:42:34	2024-12-18 13:33:17	51
5	Makarov I.A. (_Bkmz_)	93	9	88	2024-12-18 12:14:42	2024-12-18 12:34:43	20
6	Makarov I.A. (_Bkmz_)	93	9	80	2024-12-18 10:19:48	2024-12-18 11:55:38	96
7	Makarov I.A. (_Bkmz_)	93	9	78	2024-12-17 12:37:51	2024-12-17 14:24:48	107
8	Makarov I.A. (_Bkmz_)	93	9	75	2024-12-17 11:35:51	2024-12-17 11:53:23	18
9	Makarov I.A. (_Bkmz_)	93	9	73	2024-12-17 10:26:18	2024-12-17 11:06:57	41
10	Makarov I.A. (_Bkmz_)	93	9	68	2024-12-16 11:01:11	2024-12-16 19:47:07	526
11	Makarov I.A. (_Bkmz_)	93	9	67	2024-12-15 13:09:32	2024-12-15 14:37:37	88
12	Makarov I.A. (_Bkmz_)	93	9	64	2024-12-15 11:06:04	2024-12-15 11:40:27	34
13	Makarov I.A. (_Bkmz_)	93	9	62	2024-12-14 15:17:49	2024-12-14 17:47:41	150
14	Makarov I.A. (_Bkmz_)	93	9	57	2024-12-14 12:24:31	2024-12-14 13:23:57	59
15	Makarov I.A. (_Bkmz_)	93	9	37	2024-12-14 10:36:52	2024-12-14 11:48:31	72
16	Makarov I.A. (_Bkmz_)	93	9	58	2024-12-13 15:57:25	2024-12-13 16:48:47	51
17	Makarov I.A. (_Bkmz_)	93	9	47	2024-12-13 14:38:49	2024-12-13 15:18:17	39
18	Makarov I.A. (_Bkmz_)	93	9	41	2024-12-13 10:52:54	2024-12-13 12:15:47	83
19	Lyubomudrov R.G. (born2tilt)	70	22	162	2024-10-10 07:48:40		104141
20	Lyubomudrov R.G. (born2tilt)	70	22	202	2024-10-09 10:00:37		105449
21	Frolov K.A. (Murderface_)	132	0	138	2024-09-23 14:49:59		128200
22	Komarov A.N. (Shveda Saulya)	45	49	157	2024-09-04 13:29:47		155640
23	Zajtsev V.S. (Sleeping)	20	112	164	2024-07-09 13:11:22		237739
24	Slavutinskij V.V. (Vasilko)	435	0	5	2024-04-22 17:26:35		349803
25	Slavutinskij V.V. (Vasilko)	435	0	7	2024-04-22 17:26:21		349804
26	Williams B. (BW)	33	66	141	2024-04-02 11:30:28		378959
27	Kukushkin S.A. (smog)	15	153	194	2024-03-15 01:29:39		405480
28	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		419112
29	Kurbanoff N.I. (Nariman Kurbanoff)	98	9	305	2024-01-19 17:35:31		485154
30	Kurbanoff N.I. (Nariman Kurbanoff)	98	9	306	2024-01-17 10:21:39		488468
31	Kurbanoff N.I. (Nariman Kurbanoff)	98	9	71	2024-01-15 18:32:03		490858
32	Nikolaenko A.V. (Shadow77)	82	14	135	2023-12-24 02:07:10		523523
33	Komarov A.N. (Shveda Saulya)	45	49	150	2023-11-22 17:11:28		568698
34	Boiko D. (Angellore)	8	237	262	2023-11-17 19:04:36		575785
35	Rudikov E. (cubie)	133	0	138	2023-10-31 17:27:54		600362
36	Komarov A.N. (Shveda Saulya)	45	49	149	2023-05-14 13:36:07		845394
37	Zajtsev V.S. (Sleeping)	20	112	150	2023-04-18 11:40:16		882950
38	Shkarednyj I.N. (Gosha)	34	66	198	2023-03-25 21:10:27		916939
39	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1020928
40	Koptel'tsev V. (selber)	24	97	237	2022-11-06 21:16:51		1117093
41	Borisenkov D.V. (xuser)	97	9	173	2022-10-10 15:48:20		1156302
42	Lukov D.R. (Gendalf)	236	0	90	2022-07-21 11:18:50		1273211
43	Pavlov A.V. (Anton)	59	29	141	2022-04-10 16:17:39		1419792
44	Varenikov D.M. (Dmitriy Varenikov)	18	125	175	2022-01-21 11:28:01		1533842
45	Sigankov V.I. (vasilyvanc)	31	74	161	2021-10-17 20:21:01		1671549
46	Fedevych V.I. (labuch_fedev)	35	65	221	2021-07-20 17:09:05		1799901
47	Pusev D.V. (Pusev_Denis)	17	134	234	2021-04-18 09:55:08		1934255
48	Kukushkin S.A. (smog)	15	153	12	2021-03-20 02:48:36		1976441
49	Pusev D.V. (Pusev_Denis)	17	134	159	2021-03-17 12:21:10		1980189
50	Kozharinov A. (bubala)	201	0	10	2020-09-30 09:55:07		2222255
51	Samarin A. (not.yet.sql.master)	136	0	112	2020-08-14 15:12:10		2289618
52	Koptel'tsev V. (selber)	24	97	259	2020-06-24 00:22:07		2363948
53	Samarin A. (not.yet.sql.master)	136	0	138	2020-05-09 21:48:04		2428902
54	Karasyova N.V. (vlksm)	10	225	230	2020-05-04 08:57:25		2436873
55	Fedevych V.I. (labuch_fedev)	35	65	226	2020-04-06 22:22:48		2476387
56	Pusev D.V. (Pusev_Denis)	17	134	184	2020-03-21 10:55:32		2500114
57	Fokin A. (Vizitor )	43	52	217	2019-08-18 21:46:14		2810504
58	Bazavluk M. (DoNotLook)	95	9	141	2019-07-30 23:04:12		2837786
59	Romanov K.Yu. (kostik)	296	0	12	2019-07-25 08:42:10		2845848
60	Kordyum A. (alko58)	218	0	12	2019-07-12 15:58:52		2864131
61	Pavlov A.V. (Anton)	59	29	168	2019-06-12 01:20:21		2908210
62	Mal'tsev A.V. (Palkin)	110	8	218	2019-03-06 20:25:17		3048185
63	Kurochkin P.A. (qwrqwr)	11	211	227	2018-12-28 14:37:25		3146453
64	Grishunin M.F. (MikhailFG)	90	10	144	2018-12-26 09:36:27		3149633
65	Shindin A.V. (AlShin)	23	99	45	2018-09-18 15:45:28		3291824
66	Skorohod I. (Dracul4ik)	77	15	45	2018-08-07 14:38:23		3352372
67	Voevutskij S.A. (SergLK)	205	0	45	2018-07-01 13:19:14		3405731
68	Zyrin V.E. (Vezyr)	525	0	29	2018-05-29 14:14:19		3453196
69	Chebykin D. (GriGrim)	37	62	228	2018-03-26 15:47:45		3545262
70	Shkarednyj I.N. (Gosha)	34	66	151	2018-03-23 22:38:32		3549171
71	Boiko D. (Angellore)	8	237	229	2018-03-23 21:19:51		3549250
72	Azbel' E.G. (enull)	76	15	148	2018-03-08 04:10:21		3571880
73	Shkarednyj I.N. (Gosha)	34	66	147	2018-02-26 08:13:30		3586036
74	F (uff)	64	25	95	2018-01-22 15:57:03		3635973
75	Aliev R. (y4nzi)	26	95	259	2017-12-17 18:48:39		3687641
76	Kordyum A. (alko58)	218	0	101	2017-11-21 18:18:43		3725111
77	Zajtsev V.S. (Sleeping)	20	112	190	2017-11-20 12:57:31		3726872
78	Aliev R. (y4nzi)	26	95	257	2017-11-19 19:09:17		3727941
79	Aliev R. (y4nzi)	26	95	255	2017-10-24 14:34:21		3765656
80	Kukushkin S.A. (smog)	15	153	171	2017-10-05 18:37:27		3792772
81	Skorohod I. (Dracul4ik)	77	15	156	2017-09-12 19:34:33		3825835
82	Grinkevich D.L. (Dmitrij Grinkevich)	21	109	115	2017-07-21 14:09:37		3902480
83	Bezhaev A.Yu. (Baser)	7	240	220	2017-06-19 06:24:54		3949025
84	Vorob'ev E.V. (Johnnymnemonic)	154	0	138	2017-06-16 09:15:49		3953174
85	F (uff)	64	25	185	2017-06-01 10:27:49		3974702
86	Skorohod I. (Dracul4ik)	77	15	146	2017-05-04 17:54:53		4014575
87	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4076466
88	Skorohod I. (Dracul4ik)	77	15	144	2016-10-10 15:20:14		4311370
89	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		4346843
90	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		4426066
91	Karasyova N.V. (vlksm)	10	225	217	2016-04-23 11:28:43		4556401
92	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		4598500
93	Sivoglazov M.A. (Gaizenberg)	65	24	127	2015-11-28 14:08:52		4767921
94	Maslyaev V.S. (Velmont)	88	11	170	2015-11-06 14:01:20		4799609
95	Sivoglazov M.A. (Gaizenberg)	65	24	261	2015-10-13 23:22:26		4833608
96	Fomichev A.V. (Fomichev)	192	0	101	2015-10-07 11:21:04		4842969
97	Grinkevich D.L. (Dmitrij Grinkevich)	21	109	188	2015-09-19 12:34:48		4868815
98	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		4883119
99	Frolov (dr.shtopor)	80	14	141	2015-09-08 10:04:55		4884805
100	Varenikov D.M. (Dmitriy Varenikov)	18	125	217	2015-08-31 08:35:37		4896414

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