null_key.result
上传用户:tsgydb
上传日期:2007-04-14
资源大小:10674k
文件大小:2k
源码类别:

MySQL数据库

开发平台:

Visual C++

  1. table type possible_keys key key_len ref rows Extra
  2. t1 ref a a 5 const 3 where used; Using index
  3. table type possible_keys key key_len ref rows Extra
  4. t1 ref a,b a 9 const,const 1 where used; Using index
  5. table type possible_keys key key_len ref rows Extra
  6. t1 ref a,b a 9 const,const 1 where used; Using index
  7. table type possible_keys key key_len ref rows Extra
  8. t1 const a,b a 9 const,const 1
  9. table type possible_keys key key_len ref rows Extra
  10. t1 index NULL a 9 NULL 12 where used; Using index
  11. table type possible_keys key key_len ref rows Extra
  12. t1 range a,b a 9 NULL 3 where used; Using index
  13. table type possible_keys key key_len ref rows Extra
  14. t1 ref a,b b 4 const 2 where used
  15. table type possible_keys key key_len ref rows Extra
  16. t1 ref a,b a 5 const 3 where used; Using index
  17. table type possible_keys key key_len ref rows Extra
  18. t1 range a,b a 9 NULL 2 where used; Using index
  19. table type possible_keys key key_len ref rows Extra
  20. t1 range a a 5 NULL 1 where used; Using index
  21. table type possible_keys key key_len ref rows Extra
  22. t1 range a a 5 NULL 1 where used; Using index
  23. a b
  24. NULL 7
  25. NULL 9
  26. NULL 9
  27. a b
  28. NULL 7
  29. a b
  30. 1 1
  31. 2 2
  32. a b
  33. 1 1
  34. 2 2
  35. a b
  36. NULL 9
  37. NULL 9
  38. a b
  39. NULL 7
  40. 7 7
  41. a b
  42. NULL 7
  43. NULL 9
  44. NULL 9
  45. table type possible_keys key key_len ref rows Extra
  46. t1 ref a,b a 5 const 3 where used
  47. table type possible_keys key key_len ref rows Extra
  48. t1 ref a,b a 5 const 3 where used
  49. table type possible_keys key key_len ref rows Extra
  50. t1 ref a,b a 5 const 3 where used
  51. table type possible_keys key key_len ref rows Extra
  52. t1 ref a,b a 5 const 1 where used
  53. table type possible_keys key key_len ref rows Extra
  54. t1 ALL NULL NULL NULL NULL 12 where used
  55. table type possible_keys key key_len ref rows Extra
  56. t1 range a,b a 5 NULL 12 where used
  57. table type possible_keys key key_len ref rows Extra
  58. t1 range a,b a 5 NULL 4 where used
  59. table type possible_keys key key_len ref rows Extra
  60. t1 ref a,b a 5 const 3 where used
  61. table type possible_keys key key_len ref rows Extra
  62. t1 ref a,b a 5 const 3 where used
  63. table type possible_keys key key_len ref rows Extra
  64. t1 range a a 5 NULL 1 where used
  65. table type possible_keys key key_len ref rows Extra
  66. t1 range a,b a 5 NULL 4 where used
  67. table type possible_keys key key_len ref rows Extra
  68. t1 range a a 5 NULL 1 where used
  69. table type possible_keys key key_len ref rows Extra
  70. t1 range b b 12 NULL 1 where used
  71. a b c
  72. NULL 7 0
  73. NULL 9 0
  74. NULL 9 0
  75. a b c
  76. NULL 7 0
  77. a b c
  78. 1 1 0
  79. 2 2 0
  80. a b c
  81. 1 1 0
  82. 2 2 0
  83. a b c
  84. NULL 9 0
  85. NULL 9 0
  86. a b c
  87. NULL 7 0
  88. 7 7 0
  89. a b c
  90. NULL 7 0
  91. NULL 9 0
  92. NULL 9 0
  93. a b c
  94. 6 6 0