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1
by brian
clean slate |
1 |
drop table if exists t1,t2;
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2 |
select 0=0,1>0,1>=1,1<0,1<=0,1!=0,strcmp("abc","abcd"),strcmp("b","a"),strcmp("a","a") ;
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3 |
0=0 1>0 1>=1 1<0 1<=0 1!=0 strcmp("abc","abcd") strcmp("b","a") strcmp("a","a")
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4 |
1 1 1 0 0 1 -1 1 0
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5 |
select "a"<"b","a"<="b","b">="a","b">"a","a"="A","a"<>"b";
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6 |
"a"<"b" "a"<="b" "b">="a" "b">"a" "a"="A" "a"<>"b"
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7 |
1 1 1 1 1 1
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8 |
select "a "="A", "A "="a", "a " <= "A b";
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9 |
"a "="A" "A "="a" "a " <= "A b"
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10 |
1 1 1
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11 |
select "abc" like "a%", "abc" not like "%d%", "a%" like "a\%","abc%" like "a%\%","abcd" like "a%b_%d", "a" like "%%a","abcde" like "a%_e","abc" like "abc%";
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12 |
"abc" like "a%" "abc" not like "%d%" "a%" like "a\%" "abc%" like "a%\%" "abcd" like "a%b_%d" "a" like "%%a" "abcde" like "a%_e" "abc" like "abc%"
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13 |
1 1 1 1 1 1 1 1
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14 |
select "a" like "%%b","a" like "%%ab","ab" like "a\%", "ab" like "_", "ab" like "ab_", "abc" like "%_d", "abc" like "abc%d";
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15 |
"a" like "%%b" "a" like "%%ab" "ab" like "a\%" "ab" like "_" "ab" like "ab_" "abc" like "%_d" "abc" like "abc%d"
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16 |
0 0 0 0 0 0 0
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17 |
select '?' like '|%', '?' like '|%' ESCAPE '|', '%' like '|%', '%' like '|%' ESCAPE '|', '%' like '%';
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18 |
'?' like '|%' '?' like '|%' ESCAPE '|' '%' like '|%' '%' like '|%' ESCAPE '|' '%' like '%'
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19 |
0 0 0 1 1
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20 |
select 'abc' like '%c','abcabc' like '%c', "ab" like "", "ab" like "a", "ab" like "ab";
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21 |
'abc' like '%c' 'abcabc' like '%c' "ab" like "" "ab" like "a" "ab" like "ab"
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22 |
1 1 0 0 1
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23 |
select "Det här är svenska" regexp "h[[:alpha:]]+r", "aba" regexp "^(a|b)*$";
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24 |
"Det här är svenska" regexp "h[[:alpha:]]+r" "aba" regexp "^(a|b)*$"
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25 |
1 1
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26 |
select "aba" regexp concat("^","a");
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27 |
"aba" regexp concat("^","a")
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28 |
1
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29 |
select !0,NOT 0=1,!(0=0),1 AND 1,1 && 0,0 OR 1,1 || NULL, 1=1 or 1=1 and 1=0;
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30 |
!0 NOT 0=1 !(0=0) 1 AND 1 1 && 0 0 OR 1 1 || NULL 1=1 or 1=1 and 1=0
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31 |
1 1 0 1 0 1 1 1
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32 |
select 2 between 1 and 3, "monty" between "max" and "my",2=2 and "monty" between "max" and "my" and 3=3;
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33 |
2 between 1 and 3 "monty" between "max" and "my" 2=2 and "monty" between "max" and "my" and 3=3
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34 |
1 1 1
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35 |
select 'b' between 'a' and 'c', 'B' between 'a' and 'c';
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36 |
'b' between 'a' and 'c' 'B' between 'a' and 'c'
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37 |
1 1
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38 |
select 2 in (3,2,5,9,5,1),"monty" in ("david","monty","allan"), 1.2 in (1.4,1.2,1.0);
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2 in (3,2,5,9,5,1) "monty" in ("david","monty","allan") 1.2 in (1.4,1.2,1.0)
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40 |
1 1 1
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41 |
select -1.49 or -1.49,0.6 or 0.6;
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-1.49 or -1.49 0.6 or 0.6
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43 |
1 1
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44 |
select 3 ^ 11, 1 ^ 1, 1 ^ 0, 1 ^ NULL, NULL ^ 1;
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45 |
3 ^ 11 1 ^ 1 1 ^ 0 1 ^ NULL NULL ^ 1
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46 |
8 0 1 NULL NULL
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47 |
explain extended select 3 ^ 11, 1 ^ 1, 1 ^ 0, 1 ^ NULL, NULL ^ 1;
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48 |
id select_type table type possible_keys key key_len ref rows filtered Extra
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1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
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50 |
Warnings:
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51 |
Note 1003 select (3 ^ 11) AS `3 ^ 11`,(1 ^ 1) AS `1 ^ 1`,(1 ^ 0) AS `1 ^ 0`,(1 ^ NULL) AS `1 ^ NULL`,(NULL ^ 1) AS `NULL ^ 1`
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52 |
select 1 XOR 1, 1 XOR 0, 0 XOR 1, 0 XOR 0, NULL XOR 1, 1 XOR NULL, 0 XOR NULL;
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53 |
1 XOR 1 1 XOR 0 0 XOR 1 0 XOR 0 NULL XOR 1 1 XOR NULL 0 XOR NULL
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54 |
0 1 1 0 NULL NULL NULL
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55 |
select 1 like 2 xor 2 like 1;
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56 |
1 like 2 xor 2 like 1
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57 |
0
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58 |
select 10 % 7, 10 mod 7, 10 div 3;
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59 |
10 % 7 10 mod 7 10 div 3
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60 |
3 3 3
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61 |
explain extended select 10 % 7, 10 mod 7, 10 div 3;
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62 |
id select_type table type possible_keys key key_len ref rows filtered Extra
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63 |
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
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64 |
Warnings:
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65 |
Note 1003 select (10 % 7) AS `10 % 7`,(10 % 7) AS `10 mod 7`,(10 DIV 3) AS `10 div 3`
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66 |
select (1 << 64)-1, ((1 << 64)-1) DIV 1, ((1 << 64)-1) DIV 2;
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67 |
(1 << 64)-1 ((1 << 64)-1) DIV 1 ((1 << 64)-1) DIV 2
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68 |
18446744073709551615 18446744073709551615 9223372036854775807
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69 |
explain extended select (1 << 64)-1, ((1 << 64)-1) DIV 1, ((1 << 64)-1) DIV 2;
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70 |
id select_type table type possible_keys key key_len ref rows filtered Extra
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71 |
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
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72 |
Warnings:
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73 |
Note 1003 select ((1 << 64) - 1) AS `(1 << 64)-1`,(((1 << 64) - 1) DIV 1) AS `((1 << 64)-1) DIV 1`,(((1 << 64) - 1) DIV 2) AS `((1 << 64)-1) DIV 2`
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74 |
create table t1 (a int);
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75 |
insert t1 values (1);
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76 |
select * from t1 where 1 xor 1;
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77 |
a
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78 |
explain extended select * from t1 where 1 xor 1;
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79 |
id select_type table type possible_keys key key_len ref rows filtered Extra
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80 |
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL Impossible WHERE
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81 |
Warnings:
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82 |
Note 1003 select `test`.`t1`.`a` AS `a` from `test`.`t1` where 0
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83 |
select - a from t1;
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84 |
- a
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85 |
-1
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86 |
explain extended select - a from t1;
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87 |
id select_type table type possible_keys key key_len ref rows filtered Extra
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88 |
1 SIMPLE t1 system NULL NULL NULL NULL 1 100.00
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89 |
Warnings:
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90 |
Note 1003 select -('1') AS `- a` from `test`.`t1`
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91 |
drop table t1;
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92 |
select 5 between 0 and 10 between 0 and 1,(5 between 0 and 10) between 0 and 1;
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93 |
5 between 0 and 10 between 0 and 1 (5 between 0 and 10) between 0 and 1
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94 |
0 1
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95 |
select 1 and 2 between 2 and 10, 2 between 2 and 10 and 1;
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96 |
1 and 2 between 2 and 10 2 between 2 and 10 and 1
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97 |
1 1
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98 |
select 1 and 0 or 2, 2 or 1 and 0;
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99 |
1 and 0 or 2 2 or 1 and 0
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100 |
1 1
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101 |
select _koi8r'a' = _koi8r'A';
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102 |
_koi8r'a' = _koi8r'A'
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103 |
1
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104 |
select _koi8r'a' = _koi8r'A' COLLATE koi8r_general_ci;
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105 |
_koi8r'a' = _koi8r'A' COLLATE koi8r_general_ci
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106 |
1
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107 |
explain extended select _koi8r'a' = _koi8r'A' COLLATE koi8r_general_ci;
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108 |
id select_type table type possible_keys key key_len ref rows filtered Extra
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109 |
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
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110 |
Warnings:
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111 |
Note 1003 select (_koi8r'a' = (_koi8r'A' collate koi8r_general_ci)) AS `_koi8r'a' = _koi8r'A' COLLATE koi8r_general_ci`
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112 |
select _koi8r'a' = _koi8r'A' COLLATE koi8r_bin;
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113 |
_koi8r'a' = _koi8r'A' COLLATE koi8r_bin
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114 |
0
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115 |
select _koi8r'a' COLLATE koi8r_general_ci = _koi8r'A';
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116 |
_koi8r'a' COLLATE koi8r_general_ci = _koi8r'A'
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117 |
1
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118 |
select _koi8r'a' COLLATE koi8r_bin = _koi8r'A';
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119 |
_koi8r'a' COLLATE koi8r_bin = _koi8r'A'
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120 |
0
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121 |
select _koi8r'a' COLLATE koi8r_bin = _koi8r'A' COLLATE koi8r_general_ci;
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122 |
ERROR HY000: Illegal mix of collations (koi8r_bin,EXPLICIT) and (koi8r_general_ci,EXPLICIT) for operation '='
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123 |
select _koi8r'a' = _latin1'A';
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124 |
ERROR HY000: Illegal mix of collations (koi8r_general_ci,COERCIBLE) and (latin1_swedish_ci,COERCIBLE) for operation '='
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125 |
select strcmp(_koi8r'a', _koi8r'A');
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126 |
strcmp(_koi8r'a', _koi8r'A')
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127 |
0
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128 |
select strcmp(_koi8r'a', _koi8r'A' COLLATE koi8r_general_ci);
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129 |
strcmp(_koi8r'a', _koi8r'A' COLLATE koi8r_general_ci)
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130 |
0
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131 |
select strcmp(_koi8r'a', _koi8r'A' COLLATE koi8r_bin);
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132 |
strcmp(_koi8r'a', _koi8r'A' COLLATE koi8r_bin)
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133 |
1
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134 |
select strcmp(_koi8r'a' COLLATE koi8r_general_ci, _koi8r'A');
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135 |
strcmp(_koi8r'a' COLLATE koi8r_general_ci, _koi8r'A')
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136 |
0
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137 |
select strcmp(_koi8r'a' COLLATE koi8r_bin, _koi8r'A');
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138 |
strcmp(_koi8r'a' COLLATE koi8r_bin, _koi8r'A')
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139 |
1
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140 |
select strcmp(_koi8r'a' COLLATE koi8r_general_ci, _koi8r'A' COLLATE koi8r_bin);
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141 |
ERROR HY000: Illegal mix of collations (koi8r_general_ci,EXPLICIT) and (koi8r_bin,EXPLICIT) for operation 'strcmp'
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142 |
select strcmp(_koi8r'a', _latin1'A');
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143 |
ERROR HY000: Illegal mix of collations (koi8r_general_ci,COERCIBLE) and (latin1_swedish_ci,COERCIBLE) for operation 'strcmp'
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144 |
select _koi8r'a' LIKE _koi8r'A';
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145 |
_koi8r'a' LIKE _koi8r'A'
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146 |
1
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147 |
select _koi8r'a' LIKE _koi8r'A' COLLATE koi8r_general_ci;
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148 |
_koi8r'a' LIKE _koi8r'A' COLLATE koi8r_general_ci
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149 |
1
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150 |
select _koi8r'a' LIKE _koi8r'A' COLLATE koi8r_bin;
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151 |
_koi8r'a' LIKE _koi8r'A' COLLATE koi8r_bin
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152 |
0
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153 |
select _koi8r'a' COLLATE koi8r_general_ci LIKE _koi8r'A';
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154 |
_koi8r'a' COLLATE koi8r_general_ci LIKE _koi8r'A'
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155 |
1
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156 |
select _koi8r'a' COLLATE koi8r_bin LIKE _koi8r'A';
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157 |
_koi8r'a' COLLATE koi8r_bin LIKE _koi8r'A'
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158 |
0
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159 |
select _koi8r'a' COLLATE koi8r_general_ci LIKE _koi8r'A' COLLATE koi8r_bin;
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160 |
ERROR HY000: Illegal mix of collations (koi8r_general_ci,EXPLICIT) and (koi8r_bin,EXPLICIT) for operation 'like'
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161 |
select _koi8r'a' LIKE _latin1'A';
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162 |
ERROR HY000: Illegal mix of collations (koi8r_general_ci,COERCIBLE) and (latin1_swedish_ci,COERCIBLE) for operation 'like'
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163 |
CREATE TABLE t1 ( faq_group_id int(11) NOT NULL default '0', faq_id int(11) NOT NULL default '0', title varchar(240) default NULL, keywords text, description longblob, solution longblob, status tinyint(4) NOT NULL default '0', access_id smallint(6) default NULL, lang_id smallint(6) NOT NULL default '0', created datetime NOT NULL default '0000-00-00 00:00:00', updated datetime default NULL, last_access datetime default NULL, last_notify datetime default NULL, solved_count int(11) NOT NULL default '0', static_solved int(11) default NULL, solved_1 int(11) default NULL, solved_2 int(11) default NULL, solved_3 int(11) default NULL, solved_4 int(11) default NULL, solved_5 int(11) default NULL, expires datetime default NULL, notes text, assigned_to smallint(6) default NULL, assigned_group smallint(6) default NULL, last_edited_by smallint(6) default NULL, orig_ref_no varchar(15) binary default NULL, c$fundstate smallint(6) default NULL, c$contributor smallint(6) default NULL, UNIQUE KEY t1$faq_id (faq_id), KEY t1$group_id$faq_id (faq_group_id,faq_id), KEY t1$c$fundstate (c$fundstate) ) ENGINE=MyISAM;
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164 |
INSERT INTO t1 VALUES (82,82,'How to use the DynaVox Usage Counts Feature','usages count, number, corner, white, box, button','<as-html>\r\n<table width=\"100%\" border=\"0\">\r\n <tr>\r\n <td width=\"3%\"> </td>\r\n <td width=\"97%\">\r\n <h3><font face=\"Verdana, Arial, Helvetica, sans-serif\" color=\"#000000\">How \r\n To</font><!-- #BeginEditable \"CS_troubleshoot_question\" --><font face=\"Verdana, Arial, Helvetica, sans-serif\" color=\"#000099\"><font color=\"#000000\">: \r\n Display or Hide the Usage Counts to find out how many times each button is being selected. </font></font><!-- #EndEditable --></h3>\r\n </td>\r\n </tr>\r\n</table>','<as-html>\r\n <table width=\"100%\" border=\"0\">\r\n <tr>\r\n <td width=\"3%\"> </td>\r\n \r\n<td width=\"97%\"><!-- #BeginEditable \"CS_troubleshoot_answer\" --> \r\n \r\n<p><font color=\"#000000\" face=\"Verdana, Arial, Helvetica, sans-serif\">1. Select \r\n the <i>On/Setup</i> button to access the DynaVox Setup Menu.<br>\r\n 2. Select <b>Button Features.</b><br>\r\n 3. Below the <b>OK</b> button is the <b>Usage Counts</b> button.<br>\r\n a. If it says \"Hidden\" then the Usage Counts will not be displayed.<br>\r\n b. If it says \"Displayed\" then the Usage Counts will be shown.<br>\r\n c. Select the <b>Usage Counts</b> Option Ring once and it will toggle \r\n to the alternative option.<br>\r\n 4. Once the correct setting has been chosen, select <b>OK</b> to leave the <i>Button \r\n Features</i> menu.<br>\r\n 5. Select <b>OK</b> out of the <i>Setup</i> menu and return to the communication \r\n page.</font></p>\r\n <p><font color=\"#000000\" face=\"Verdana, Arial, Helvetica, sans-serif\">For \r\n further information on <i>Usage Counts,</i> see the <i>Button Features \r\n Menu Entry</i> in the DynaVox/DynaMyte Reference Manual.</font></p>\r\n<!-- #EndEditable --></td>\r\n </tr>\r\n</table>',4,1,1,'2001-11-16 16:43:34','2002-11-25 12:09:43','2003-07-24 01:04:48',NULL,11,NULL,0,0,0,0,0,NULL,NULL,NULL,NULL,11,NULL,NULL,NULL);
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165 |
CREATE TABLE t2 ( access_id smallint(6) NOT NULL default '0', name varchar(20) binary default NULL, rank smallint(6) NOT NULL default '0', KEY t2$access_id (access_id) ) ENGINE=MyISAM;
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166 |
INSERT INTO t2 VALUES (1,'Everyone',2),(2,'Help',3),(3,'Customer Support',1);
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167 |
SELECT f_acc.rank, a1.rank, a2.rank FROM t1 LEFT JOIN t1 f1 ON (f1.access_id=1 AND f1.faq_group_id = t1.faq_group_id) LEFT JOIN t2 a1 ON (a1.access_id = f1.access_id) LEFT JOIN t1 f2 ON (f2.access_id=3 AND f2.faq_group_id = t1.faq_group_id) LEFT JOIN t2 a2 ON (a2.access_id = f2.access_id), t2 f_acc WHERE LEAST(a1.rank,a2.rank) = f_acc.rank;
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168 |
rank rank rank
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169 |
DROP TABLE t1,t2;
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170 |
CREATE TABLE t1 (d varchar(6), k int);
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171 |
INSERT INTO t1 VALUES (NULL, 2);
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172 |
SELECT GREATEST(d,d) FROM t1 WHERE k=2;
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173 |
GREATEST(d,d)
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174 |
NULL
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175 |
DROP TABLE t1;
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176 |
select 1197.90 mod 50;
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177 |
1197.90 mod 50
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178 |
47.90
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179 |
select 5.1 mod 3, 5.1 mod -3, -5.1 mod 3, -5.1 mod -3;
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180 |
5.1 mod 3 5.1 mod -3 -5.1 mod 3 -5.1 mod -3
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181 |
2.1 2.1 -2.1 -2.1
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182 |
select 5 mod 3, 5 mod -3, -5 mod 3, -5 mod -3;
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183 |
5 mod 3 5 mod -3 -5 mod 3 -5 mod -3
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184 |
2 2 -2 -2
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185 |
select (12%0) <=> null as '1';
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186 |
1
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187 |
1
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188 |
select (12%0) is null as '1';
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189 |
1
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190 |
1
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191 |
select 12%0 as 'NULL';
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192 |
NULL
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193 |
NULL
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194 |
select 12%2 as '0';
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195 |
0
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196 |
0
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197 |
select 12%NULL as 'NULL';
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198 |
NULL
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199 |
NULL
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200 |
select 12 % null as 'NULL';
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201 |
NULL
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202 |
NULL
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203 |
select null % 12 as 'NULL';
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204 |
NULL
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205 |
NULL
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206 |
select null % 0 as 'NULL';
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207 |
NULL
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208 |
NULL
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209 |
select 0 % null as 'NULL';
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210 |
NULL
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211 |
NULL
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212 |
select null % null as 'NULL';
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213 |
NULL
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214 |
NULL
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215 |
select (12 mod 0) <=> null as '1';
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216 |
1
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217 |
1
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218 |
select (12 mod 0) is null as '1';
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219 |
1
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220 |
1
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221 |
select 12 mod 0 as 'NULL';
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222 |
NULL
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223 |
NULL
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224 |
select 12 mod 2 as '0';
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225 |
0
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226 |
0
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227 |
select 12 mod null as 'NULL';
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228 |
NULL
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229 |
NULL
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230 |
select null mod 12 as 'NULL';
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231 |
NULL
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232 |
NULL
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233 |
select null mod 0 as 'NULL';
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234 |
NULL
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235 |
NULL
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236 |
select 0 mod null as 'NULL';
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237 |
NULL
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238 |
NULL
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239 |
select null mod null as 'NULL';
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240 |
NULL
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241 |
NULL
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242 |
select mod(12.0, 0) as 'NULL';
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243 |
NULL
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244 |
NULL
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245 |
select mod(12, 0.0) as 'NULL';
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246 |
NULL
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247 |
NULL
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248 |
select mod(12, NULL) as 'NULL';
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249 |
NULL
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250 |
NULL
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251 |
select mod(12.0, NULL) as 'NULL';
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252 |
NULL
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253 |
NULL
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254 |
select mod(NULL, 2) as 'NULL';
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|
255 |
NULL
|
|
256 |
NULL
|
|
257 |
select mod(NULL, 2.0) as 'NULL';
|
|
258 |
NULL
|
|
259 |
NULL
|
|
260 |
create table t1 (a int, b int);
|
|
261 |
insert into t1 values (1,2), (2,3), (3,4), (4,5);
|
|
262 |
select * from t1 where a not between 1 and 2;
|
|
263 |
a b
|
|
264 |
3 4
|
|
265 |
4 5
|
|
266 |
select * from t1 where a not between 1 and 2 and b not between 3 and 4;
|
|
267 |
a b
|
|
268 |
4 5
|
|
269 |
drop table t1;
|
|
270 |
SELECT GREATEST(1,NULL) FROM DUAL;
|
|
271 |
GREATEST(1,NULL)
|
|
272 |
NULL
|
|
273 |
SELECT LEAST('xxx','aaa',NULL,'yyy') FROM DUAL;
|
|
274 |
LEAST('xxx','aaa',NULL,'yyy')
|
|
275 |
NULL
|
|
276 |
SELECT LEAST(1.1,1.2,NULL,1.0) FROM DUAL;
|
|
277 |
LEAST(1.1,1.2,NULL,1.0)
|
|
278 |
NULL
|
|
279 |
SELECT GREATEST(1.5E+2,1.3E+2,NULL) FROM DUAL;
|
|
280 |
GREATEST(1.5E+2,1.3E+2,NULL)
|
|
281 |
NULL
|