Last week rating | SQL Exercises

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March 12, 10:02 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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Last-week results

n_sel - number of select exercises solved this week;
sel_all - total number of solved select exercises;
sel_scores - sum of points on select exercises earned this week;
dml_scores - sum of points on dml exercises earned this week;
scores - total sum of points earned this week;

Involved in rating: 11407

No surname n_sel sel_all sel_scores dml_scores scores rating last_visit

1 Zheka (jek) 25 41 57 34 91 997 10 Mar 2010

2 Makulina Yu. (Yulioka) 17 21 37 25 62 2342 11 Mar 2010

3 >Polikarpov I.A. (Polik) 29 50 46 15 61 783 12 Mar 2010

4 Mikhajlov A.N. (goodron) 24 27 50 3 53 1483 11 Mar 2010

5 Charyshkin O.Yu. (O.Charyshkin) 22 36 39 9 48 1103 11 Mar 2010

6 Litvin M.S. (Mike.S.Litvin) 23 23 48 0 48 3616 11 Mar 2010

7 Zajtsev M.I. (Armitage2010) 20 23 41 0 41 1834 08 Mar 2010

8 Semina E.V. (lenka_13) 17 17 29 0 29 6133 10 Mar 2010

9 Kotov A. (Ckpa6) 11 137 25 0 25 68 11 Mar 2010

10 Tirskaya I.V. (tiv) 10 10 23 0 23 6974 11 Mar 2010

11 Khopryachkov D.A. (KhopDen) 7 31 13 8 21 1762 10 Mar 2010

12 Bar (nataluka) 12 14 21 0 21 6642 09 Mar 2010

13 knyaginichev S. (knyagich) 9 50 11 7 18 1241 12 Mar 2010

14 Karpenko A.Yu. (Mang) 10 14 17 0 17 6658 11 Mar 2010

15 Tkachev A.B. (Alexandre) 8 39 16 0 16 1881 11 Mar 2010

16 tumbr (tumbr70) 2 4 3 12 15 4885 10 Mar 2010

17 Bazhanova M.A. (RedMouse) 5 67 13 1 14 476 11 Mar 2010

18 Gajdalovich A.A. (alex555) 10 50 14 0 14 778 11 Mar 2010

19 Saltykov B.E. (borin oak) 9 9 14 0 14 7775 10 Mar 2010

20 Ivakhnenko A. (alex.i) 6 131 13 0 13 73 07 Mar 2010

21 Gololobov (Victor) 8 34 12 0 12 1213 12 Mar 2010

22 Lyubchenko V.A. (IAS56) 6 135 10 1 11 20 12 Mar 2010

23 Il'in (Zoet) 5 79 11 0 11 550 08 Mar 2010

24 Kitaeva (Olga Kitaeva) 1 1 3 8 11 8082 11 Mar 2010

25 Sukharev V.V. (YodaS) 0 72 0 10 10 452 11 Mar 2010

26 Didenko T. (Tey) 7 53 10 0 10 723 11 Mar 2010

27 Smirnov D. (dmitry_smirnov) 5 35 10 0 10 2087 11 Mar 2010

28 Vorob'yov A.M. (lenden) 1 1 3 7 10 8259 11 Mar 2010

29 tan (emmaline) 1 1 1 9 10 8260 11 Mar 2010

30 B (vtan) 4 120 9 0 9 105 08 Mar 2010

31 Yatsenko D.A. (profesla) 5 38 9 0 9 1105 11 Mar 2010

32 Sadovin (A_S) 5 19 8 0 8 6062 10 Mar 2010

33 Fedorov M.N. (mikff) 5 10 8 0 8 7663 11 Mar 2010

34 Matveenko A.S. (keeper) 2 3 6 2 8 7796 08 Mar 2010

35 Semaka (tolikas) 3 120 7 0 7 104 12 Mar 2010

36 Usik V.N. (Vladius) 3 113 7 0 7 144 10 Mar 2010

37 Datsyuk V.Yu. (.Wizard) 4 88 7 0 7 296 11 Mar 2010

38 Simanjuntak (waldo53) 4 30 7 0 7 1548 10 Mar 2010

39 Grosu G.F. (amigo793793) 2 14 4 3 7 6834 11 Mar 2010

40 Erika K.C. (kErika) 4 4 7 0 7 8469 11 Mar 2010

41 Luci L.C. (luci.k02) 4 4 7 0 7 8476 11 Mar 2010

42 Hoszu A. (Ama) 4 4 7 0 7 8493 11 Mar 2010

43 Fomchenkov V.N. (hamp) 2 125 6 0 6 154 11 Mar 2010

44 >Kurochkin P.A. (qwrqwr) 2 123 5 0 5 93 12 Mar 2010

45 Krylov S.A. (Serg71) 2 107 5 0 5 196 10 Mar 2010

46 Vasil'ev A.V. (alex_v81) 3 64 5 0 5 527 08 Mar 2010

47 Bespyatov A. (lelik_b) 4 54 5 0 5 721 11 Mar 2010

48 Tumakov D. (dtum) 3 62 5 0 5 1137 10 Mar 2010

49 Batyrshin R.N. (Ramses) 4 44 5 0 5 1139 05 Mar 2010

50 Tolstikhin K.V. (magi) 4 26 5 0 5 1893 11 Mar 2010

51 >Bakhtina E. (Nochkale) 1 27 1 4 5 1910 12 Mar 2010

52 Tokarenko (OAT) 0 0 5 5 8951 10 Mar 2010

53 Sukhnev D.A. (mz) 2 148 4 0 4 22 12 Mar 2010

54 Poltavets L.S. (lilyok) 2 140 4 0 4 56 11 Mar 2010

55 Voevutskij S.A. (SergLK) 2 130 4 0 4 74 10 Mar 2010

56 Rebrov (Dmitry78) 2 52 4 0 4 745 11 Mar 2010

57 Kuznetsov N. (Nickus) 4 56 4 0 4 1282 05 Mar 2010

58 Medvedev (VladimirMA) 2 14 4 0 4 7131 10 Mar 2010

59 Golovenkin A.I. (Yuusou) 2 3 4 0 4 8560 11 Mar 2010

60 Korentabak A. (koren) 2 2 4 0 4 9069 11 Mar 2010

61 Gusejnov A.V. (alexey!!!) 0 0 4 4 9282 09 Mar 2010

62 Drozdkov A.N. (anddros) 1 161 3 0 3 5 12 Mar 2010

63 Bojchuk M.V. (Bol'shoj Bizon) 1 72 3 0 3 421 12 Mar 2010

64 timofeev (artemius) 2 37 3 0 3 1162 10 Mar 2010

65 Timonin D.E. (DmiTim) 1 50 3 0 3 1211 08 Mar 2010

66 Kozlikova D.A. (kozlik) 2 32 3 0 3 2243 10 Mar 2010

67 M S.A. (Chert) 1 10 3 0 3 4413 11 Mar 2010

68 Gavlitskij V.A. (Slavich) 0 5 0 3 3 5766 12 Mar 2010

69 Tseshinskij A.A. (Alex Czech) 2 18 3 0 3 6450 07 Mar 2010

70 Stepanov L. (Uliss) 0 7 0 3 3 8027 08 Mar 2010

71 Antonov A.V. (X_O_M_A) 1 1 3 0 3 9283 11 Mar 2010

72 Shinkarenko D. (Denysss) 2 2 3 0 3 9652 12 Mar 2010

73 Rajput A. (RAmit) 0 0 3 3 10008 07 Mar 2010

74 wooden B. (wooden) 1 1 3 0 3 10009 09 Mar 2010

75 Woody30 (Woody30) 0 0 3 3 10010 08 Mar 2010

76 Nikolaeva (Lake) 1 1 1 2 3 10011 10 Mar 2010

77 Klyakhin (San67) 1 1 3 0 3 10012 10 Mar 2010

78 Treukhov B.M. (kornfan) 1 1 3 0 3 10013 09 Mar 2010

79 V'yalkova E. (Kattty) 0 0 3 3 10014 11 Mar 2010

80 Nevskaya (Nenani) 1 1 3 0 3 10015 11 Mar 2010

81 Parkhomenko E.V. (katerina_parha) 0 0 3 3 10016 11 Mar 2010

82 Bojko D.M. (Angellore) 1 151 2 0 2 13 11 Mar 2010

83 Orlov M.V. (Eagleoff) 1 150 2 0 2 16 12 Mar 2010

84 Dvoryaninov V.A. (Valdaj) 1 141 2 0 2 32 12 Mar 2010

85 Fajnberg M.L. (burnall) 1 136 2 0 2 38 05 Mar 2010

86 Rakovich A. (Lohmatyi) 1 134 2 0 2 63 05 Mar 2010

87 Gukasyan A. (Artur) 1 76 2 0 2 373 10 Mar 2010

88 Pivovar M.Yu. (Turkish) 1 70 2 0 2 431 09 Mar 2010

89 Vanin V. (_Virt_) 1 61 2 0 2 613 11 Mar 2010

90 Martynenko V.Yu. (Fuddy-Duddy) 1 75 2 0 2 633 11 Mar 2010

91 Artem'ev V.A. (vasart) 2 47 2 0 2 867 07 Mar 2010

92 Bugarchev D. (begemot) 2 35 2 0 2 1124 11 Mar 2010

93 Mel'nik M.Yu. (Muller) 2 35 2 0 2 1192 11 Mar 2010

94 hajshgjhag (adcsdccv) 2 32 2 0 2 1507 07 Mar 2010

95 Zdvizhkov (AlxLucky) 1 36 2 0 2 1983 11 Mar 2010

96 Belykh A.A. (w(HiT)e) 2 19 2 0 2 5047 10 Mar 2010

97 Baranov V.E. (barrakuda-v) 1 14 2 0 2 5325 11 Mar 2010

98 Safonov (Amigos) 1 14 2 0 2 7132 07 Mar 2010

99 smolina O.S. (burka) 2 4 2 0 2 8546 09 Mar 2010

100 Kipelkov O.I. (AlexGodSaveUs) 0 0 2 2 11231 08 Mar 2010

101 Simpson (denis00) 1 1 2 0 2 11232 11 Mar 2010

102 >Veselov A. (votan) 1 1 2 0 2 11233 12 Mar 2010

103 Karasyova N.V. (vlksm) 1 165 1 0 1 1 12 Mar 2010

104 Kreslavskij O.M. (Arcan) 1 165 1 0 1 2 11 Mar 2010

105 Zotov P.G. (Ozzy) 1 164 1 0 1 3 11 Mar 2010

106 Tarasov D.B. (Gavrila) 1 151 1 0 1 11 12 Mar 2010

107 Bashlykov V.V. (Vetaleg) 1 107 1 0 1 162 08 Mar 2010

108 Schukin A.S. (Faust) 1 94 1 0 1 262 12 Mar 2010

109 Charyshkin P.P. (PeterChar) 1 68 1 0 1 419 11 Mar 2010

110 Obmankin S.I. (Doc@) 1 66 1 0 1 440 11 Mar 2010

111 Mikhailov S. (curiouser) 1 62 1 0 1 601 11 Mar 2010

112 Leonov A.A. (LeonovAA) 1 54 1 0 1 725 07 Mar 2010

113 Nekhajchik V.A. (ev1L) 1 54 1 0 1 736 10 Mar 2010

114 Zhbanova I.V. (inessa) 1 36 1 0 1 1176 08 Mar 2010

115 Zelinskij D. (Dedushka) 1 20 1 0 1 1936 10 Mar 2010

116 Musikhin A.M. (Musihin_A) 1 13 1 0 1 4806 12 Mar 2010

117 Genovesi S. (Salvatore) 0 1 0 1 1 9190 09 Mar 2010

118 sharma (kaku) 0 0 1 1 11397 08 Mar 2010

119 Roberts W. (J bobby) 0 0 1 1 11398 08 Mar 2010

120 bhujel B.B. (bivas) 0 0 1 1 11399 08 Mar 2010

121 tal (natal) 0 0 1 1 11400 09 Mar 2010

122 Ivaschenko P. (ivpeko) 0 0 1 1 11401 09 Mar 2010

123 Tejwani P.M. (trueblue1987) 0 0 1 1 11402 09 Mar 2010

124 Pika8484 P.P. (Pika848484) 0 0 1 1 11403 10 Mar 2010

125 patil R. (yoman) 0 0 1 1 11404 10 Mar 2010

126 Malyasov M. (RainmanM) 0 0 1 1 11405 10 Mar 2010

127 Bali M. (balimis1) 1 1 1 0 1 11406 11 Mar 2010

128 Ershova E.A. (Susana) 0 0 1 1 11407 11 Mar 2010

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