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1
by brian
clean slate |
1 |
drop table if exists t1,t2,t3,t11,t12;
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2 |
CREATE TABLE t1 (a tinyint(3), b tinyint(5));
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3 |
INSERT INTO t1 VALUES (1,1);
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4 |
INSERT LOW_PRIORITY INTO t1 VALUES (1,2);
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5 |
INSERT INTO t1 VALUES (1,3);
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6 |
DELETE from t1 where a=1 limit 1;
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7 |
DELETE LOW_PRIORITY from t1 where a=1;
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8 |
INSERT INTO t1 VALUES (1,1);
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9 |
DELETE from t1;
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10 |
LOCK TABLE t1 write;
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11 |
INSERT INTO t1 VALUES (1,2);
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12 |
DELETE from t1;
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13 |
UNLOCK TABLES;
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14 |
INSERT INTO t1 VALUES (1,2);
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15 |
SET AUTOCOMMIT=0;
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16 |
DELETE from t1;
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17 |
SET AUTOCOMMIT=1;
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18 |
drop table t1;
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19 |
create table t1 (
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20 |
a bigint not null,
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21 |
b bigint not null default 0,
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22 |
c bigint not null default 0,
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23 |
d bigint not null default 0,
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24 |
e bigint not null default 0,
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25 |
f bigint not null default 0,
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26 |
g bigint not null default 0,
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27 |
h bigint not null default 0,
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28 |
i bigint not null default 0,
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29 |
j bigint not null default 0,
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30 |
primary key (a,b,c,d,e,f,g,h,i,j));
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31 |
insert into t1 (a) values (2),(4),(6),(8),(10),(12),(14),(16),(18),(20),(22),(24),(26),(23);
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32 |
delete from t1 where a=26;
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33 |
drop table t1;
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34 |
create table t1 (
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35 |
a bigint not null,
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36 |
b bigint not null default 0,
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37 |
c bigint not null default 0,
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38 |
d bigint not null default 0,
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39 |
e bigint not null default 0,
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40 |
f bigint not null default 0,
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41 |
g bigint not null default 0,
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42 |
h bigint not null default 0,
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43 |
i bigint not null default 0,
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44 |
j bigint not null default 0,
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45 |
primary key (a,b,c,d,e,f,g,h,i,j));
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46 |
insert into t1 (a) values (2),(4),(6),(8),(10),(12),(14),(16),(18),(20),(22),(24),(26),(23),(27);
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47 |
delete from t1 where a=27;
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48 |
drop table t1;
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49 |
CREATE TABLE `t1` (
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50 |
`i` int(10) NOT NULL default '0',
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51 |
`i2` int(10) NOT NULL default '0',
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52 |
PRIMARY KEY (`i`)
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53 |
);
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54 |
DELETE FROM t1 USING t1 WHERE post='1';
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55 |
ERROR 42S22: Unknown column 'post' in 'where clause'
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56 |
drop table t1;
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57 |
CREATE TABLE t1 (
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58 |
bool char(0) default NULL,
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59 |
not_null varchar(20) binary NOT NULL default '',
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60 |
misc integer not null,
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61 |
PRIMARY KEY (not_null)
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62 |
) ENGINE=MyISAM;
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63 |
INSERT INTO t1 VALUES (NULL,'a',4), (NULL,'b',5), (NULL,'c',6), (NULL,'d',7);
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64 |
select * from t1 where misc > 5 and bool is null;
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65 |
bool not_null misc
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66 |
NULL c 6
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67 |
NULL d 7
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68 |
delete from t1 where misc > 5 and bool is null;
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69 |
select * from t1 where misc > 5 and bool is null;
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70 |
bool not_null misc
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71 |
select count(*) from t1;
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72 |
count(*)
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73 |
2
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74 |
delete from t1 where 1 > 2;
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75 |
select count(*) from t1;
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76 |
count(*)
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77 |
2
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78 |
delete from t1 where 3 > 2;
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79 |
select count(*) from t1;
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80 |
count(*)
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81 |
0
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82 |
drop table t1;
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83 |
create table t1 (a int not null auto_increment primary key, b char(32));
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84 |
insert into t1 (b) values ('apple'), ('apple');
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85 |
select * from t1;
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86 |
a b
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87 |
1 apple
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88 |
2 apple
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89 |
delete t1 from t1, t1 as t2 where t1.b = t2.b and t1.a > t2.a;
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90 |
select * from t1;
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91 |
a b
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92 |
1 apple
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93 |
drop table t1;
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94 |
create table t11 (a int NOT NULL, b int, primary key (a));
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95 |
create table t12 (a int NOT NULL, b int, primary key (a));
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96 |
create table t2 (a int NOT NULL, b int, primary key (a));
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97 |
insert into t11 values (0, 10),(1, 11),(2, 12);
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98 |
insert into t12 values (33, 10),(0, 11),(2, 12);
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99 |
insert into t2 values (1, 21),(2, 12),(3, 23);
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100 |
select * from t11;
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101 |
a b
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102 |
0 10
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103 |
1 11
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104 |
2 12
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105 |
select * from t12;
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106 |
a b
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107 |
33 10
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108 |
0 11
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109 |
2 12
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110 |
select * from t2;
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111 |
a b
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112 |
1 21
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113 |
2 12
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114 |
3 23
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115 |
delete t11.*, t12.* from t11,t12 where t11.a = t12.a and t11.b <> (select b from t2 where t11.a < t2.a);
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116 |
ERROR 21000: Subquery returns more than 1 row
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117 |
select * from t11;
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118 |
a b
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119 |
0 10
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120 |
1 11
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121 |
2 12
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122 |
select * from t12;
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123 |
a b
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124 |
33 10
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125 |
0 11
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126 |
2 12
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127 |
delete ignore t11.*, t12.* from t11,t12 where t11.a = t12.a and t11.b <> (select b from t2 where t11.a < t2.a);
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128 |
Warnings:
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129 |
Error 1242 Subquery returns more than 1 row
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130 |
Error 1242 Subquery returns more than 1 row
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131 |
select * from t11;
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132 |
a b
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133 |
0 10
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134 |
1 11
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135 |
select * from t12;
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136 |
a b
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137 |
33 10
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138 |
0 11
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139 |
insert into t11 values (2, 12);
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140 |
delete from t11 where t11.b <> (select b from t2 where t11.a < t2.a);
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141 |
ERROR 21000: Subquery returns more than 1 row
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142 |
select * from t11;
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143 |
a b
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144 |
0 10
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145 |
1 11
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146 |
2 12
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147 |
delete ignore from t11 where t11.b <> (select b from t2 where t11.a < t2.a);
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148 |
Warnings:
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149 |
Error 1242 Subquery returns more than 1 row
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150 |
Error 1242 Subquery returns more than 1 row
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151 |
select * from t11;
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152 |
a b
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153 |
0 10
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154 |
1 11
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155 |
drop table t11, t12, t2;
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156 |
create table t1 (a int, b int, unique key (a), key (b));
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157 |
insert into t1 values (3, 3), (7, 7);
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158 |
delete t1 from t1 where a = 3;
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159 |
check table t1;
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160 |
Table Op Msg_type Msg_text
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161 |
test.t1 check status OK
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162 |
select * from t1;
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163 |
a b
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164 |
7 7
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165 |
drop table t1;
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166 |
CREATE TABLE t1 ( a int PRIMARY KEY );
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167 |
DELETE FROM t1 WHERE t1.a > 0 ORDER BY t1.a;
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168 |
INSERT INTO t1 VALUES (0),(1),(2);
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169 |
DELETE FROM t1 WHERE t1.a > 0 ORDER BY t1.a LIMIT 1;
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170 |
SELECT * FROM t1;
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171 |
a
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172 |
0
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173 |
2
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174 |
DROP TABLE t1;
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175 |
create table t1 (a int);
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176 |
delete `4.t1` from t1 as `4.t1` where `4.t1`.a = 5;
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177 |
delete FROM `4.t1` USING t1 as `4.t1` where `4.t1`.a = 5;
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178 |
drop table t1;
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179 |
create table t1(f1 int primary key);
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180 |
insert into t1 values (4),(3),(1),(2);
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181 |
delete from t1 where (@a:= f1) order by f1 limit 1;
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182 |
select @a;
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183 |
@a
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184 |
1
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185 |
drop table t1;
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186 |
CREATE TABLE t1 (
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187 |
`date` date ,
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188 |
`time` time ,
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189 |
`seq` int(10) unsigned NOT NULL auto_increment,
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190 |
PRIMARY KEY (`seq`),
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191 |
KEY `seq` (`seq`),
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192 |
KEY `time` (`time`),
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193 |
KEY `date` (`date`)
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194 |
);
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195 |
DELETE FROM t1 ORDER BY date ASC, time ASC LIMIT 1;
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196 |
drop table t1;
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197 |
End of 4.1 tests
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198 |
CREATE TABLE t1 (a int not null,b int not null);
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199 |
CREATE TABLE t2 (a int not null, b int not null, primary key (a,b));
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200 |
CREATE TABLE t3 (a int not null, b int not null, primary key (a,b));
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201 |
insert into t1 values (1,1),(2,1),(1,3);
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202 |
insert into t2 values (1,1),(2,2),(3,3);
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203 |
insert into t3 values (1,1),(2,1),(1,3);
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204 |
select * from t1,t2,t3 where t1.a=t2.a AND t2.b=t3.a and t1.b=t3.b;
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205 |
a b a b a b
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206 |
1 1 1 1 1 1
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207 |
2 1 2 2 2 1
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208 |
1 3 1 1 1 3
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209 |
explain select * from t1,t2,t3 where t1.a=t2.a AND t2.b=t3.a and t1.b=t3.b;
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210 |
id select_type table type possible_keys key key_len ref rows Extra
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211 |
1 SIMPLE t1 ALL NULL NULL NULL NULL 3
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212 |
1 SIMPLE t2 ref PRIMARY PRIMARY 4 test.t1.a 1 Using index
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213 |
1 SIMPLE t3 eq_ref PRIMARY PRIMARY 8 test.t2.b,test.t1.b 1 Using index
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214 |
delete t2.*,t3.* from t1,t2,t3 where t1.a=t2.a AND t2.b=t3.a and t1.b=t3.b;
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215 |
select * from t3;
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216 |
a b
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217 |
drop table t1,t2,t3;
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218 |
create table t1(a date not null);
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219 |
insert into t1 values (0);
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220 |
select * from t1 where a is null;
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221 |
a
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222 |
0000-00-00
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223 |
delete from t1 where a is null;
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224 |
select count(*) from t1;
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225 |
count(*)
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226 |
0
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227 |
drop table t1;
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228 |
CREATE TABLE t1 (a INT);
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229 |
INSERT INTO t1 VALUES (1);
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230 |
DELETE FROM t1 ORDER BY x;
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231 |
ERROR 42S22: Unknown column 'x' in 'order clause'
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232 |
DELETE FROM t1 ORDER BY t2.x;
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233 |
ERROR 42S22: Unknown column 't2.x' in 'order clause'
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234 |
DELETE FROM t1 ORDER BY (SELECT x);
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235 |
ERROR 42S22: Unknown column 'x' in 'field list'
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236 |
DROP TABLE t1;
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237 |
CREATE TABLE t1 (
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238 |
a INT
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239 |
);
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240 |
CREATE TABLE t2 (
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241 |
a INT
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242 |
);
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243 |
CREATE DATABASE db1;
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244 |
CREATE TABLE db1.t1 (
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245 |
a INT
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246 |
);
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247 |
INSERT INTO db1.t1 (a) SELECT * FROM t1;
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248 |
CREATE DATABASE db2;
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249 |
CREATE TABLE db2.t1 (
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250 |
a INT
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251 |
);
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252 |
INSERT INTO db2.t1 (a) SELECT * FROM t2;
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253 |
DELETE FROM t1 alias USING t1, t2 alias WHERE t1.a = alias.a;
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254 |
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'alias USING t1, t2 alias WHERE t1.a = alias.a' at line 1
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255 |
DELETE FROM alias USING t1, t2 alias WHERE t1.a = alias.a;
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256 |
DELETE FROM t1, alias USING t1, t2 alias WHERE t1.a = alias.a;
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257 |
DELETE FROM t1, t2 USING t1, t2 alias WHERE t1.a = alias.a;
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258 |
ERROR 42S02: Unknown table 't2' in MULTI DELETE
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259 |
DELETE FROM db1.t1 alias USING db1.t1, db2.t1 alias WHERE db1.t1.a = alias.a;
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260 |
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'alias USING db1.t1, db2.t1 alias WHERE db1.t1.a = alias.a' at line 1
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261 |
DELETE FROM alias USING db1.t1, db2.t1 alias WHERE db1.t1.a = alias.a;
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262 |
DELETE FROM db2.alias USING db1.t1, db2.t1 alias WHERE db1.t1.a = alias.a;
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263 |
ERROR 42S02: Unknown table 'alias' in MULTI DELETE
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264 |
DELETE FROM t1 USING t1 WHERE a = 1;
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265 |
SELECT * FROM t1;
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266 |
a
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267 |
DELETE FROM t1 alias USING t1 alias WHERE a = 2;
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268 |
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'alias USING t1 alias WHERE a = 2' at line 1
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269 |
SELECT * FROM t1;
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270 |
a
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271 |
DROP TABLE t1, t2;
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272 |
DROP DATABASE db1;
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273 |
DROP DATABASE db2;
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274 |
End of 5.0 tests
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275 |
DROP DATABASE IF EXISTS db1;
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276 |
DROP DATABASE IF EXISTS db2;
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277 |
DROP DATABASE IF EXISTS db3;
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278 |
DROP DATABASE IF EXISTS db4;
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279 |
DROP TABLE IF EXISTS t1, t2;
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280 |
USE test;
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281 |
CREATE DATABASE db1;
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282 |
CREATE DATABASE db2;
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283 |
CREATE TABLE db1.t1 (a INT, b INT);
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284 |
INSERT INTO db1.t1 VALUES (1,1),(2,2),(3,3);
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285 |
CREATE TABLE db1.t2 AS SELECT * FROM db1.t1;
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286 |
CREATE TABLE db2.t1 AS SELECT * FROM db1.t2;
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287 |
CREATE TABLE db2.t2 AS SELECT * FROM db2.t1;
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288 |
CREATE TABLE t1 AS SELECT * FROM db2.t2;
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289 |
CREATE TABLE t2 AS SELECT * FROM t1;
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290 |
CREATE DATABASE db3;
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291 |
USE db3;
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292 |
DROP DATABASE db3;
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293 |
SELECT * FROM t1;
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294 |
ERROR 3D000: No database selected
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295 |
DELETE a1,a2 FROM db1.t1, db2.t2;
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296 |
ERROR 3D000: No database selected
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297 |
DELETE a1,a2 FROM db1.t1, db2.t2;
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298 |
ERROR 3D000: No database selected
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299 |
DELETE a1,a2 FROM db1.t1 AS a1, db2.t2;
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300 |
ERROR 3D000: No database selected
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301 |
DELETE a1,a2 FROM db1.t1, db2.t2 AS a2;
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302 |
ERROR 3D000: No database selected
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303 |
DELETE a1,a2 FROM db3.t1 AS a1, db4.t2 AS a2;
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304 |
ERROR 3D000: No database selected
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305 |
DELETE a1,a2 FROM db3.t1 AS a1, db4.t2 AS a2;
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306 |
ERROR 3D000: No database selected
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307 |
DELETE FROM a1,a2 USING db1.t1, db2.t2;
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308 |
ERROR 3D000: No database selected
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309 |
DELETE FROM a1,a2 USING db1.t1, db2.t2;
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310 |
ERROR 3D000: No database selected
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311 |
DELETE FROM a1,a2 USING db1.t1 AS a1, db2.t2;
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312 |
ERROR 3D000: No database selected
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313 |
DELETE FROM a1,a2 USING db1.t1, db2.t2 AS a2;
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314 |
ERROR 3D000: No database selected
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315 |
DELETE FROM a1,a2 USING db3.t1 AS a1, db4.t2 AS a2;
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316 |
ERROR 3D000: No database selected
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317 |
DELETE FROM a1,a2 USING db3.t1 AS a1, db4.t2 AS a2;
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318 |
ERROR 3D000: No database selected
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319 |
DELETE a1 FROM db1.t1 AS a1, db2.t2 AS a1;
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320 |
ERROR 3D000: No database selected
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321 |
DELETE a1 FROM db1.a1, db2.t2 AS a1;
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322 |
ERROR 3D000: No database selected
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323 |
DELETE a1 FROM a1, db1.t1 AS a1;
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324 |
ERROR 3D000: No database selected
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325 |
DELETE t1 FROM db1.t1, db2.t1 AS a1;
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326 |
ERROR 3D000: No database selected
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327 |
DELETE t1 FROM db1.t1 AS a1, db2.t1 AS a2;
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328 |
ERROR 3D000: No database selected
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329 |
DELETE t1 FROM db1.t1, db2.t1;
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330 |
ERROR 3D000: No database selected
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331 |
USE test;
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332 |
DELETE a1,a2 FROM db1.t1, db2.t2;
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333 |
ERROR 42S02: Unknown table 'a1' in MULTI DELETE
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334 |
DELETE a1,a2 FROM db1.t1, db2.t2;
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335 |
ERROR 42S02: Unknown table 'a1' in MULTI DELETE
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336 |
DELETE a1,a2 FROM db1.t1 AS a1, db2.t2;
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337 |
ERROR 42S02: Unknown table 'a2' in MULTI DELETE
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338 |
DELETE a1,a2 FROM db1.t1, db2.t2 AS a2;
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339 |
ERROR 42S02: Unknown table 'a1' in MULTI DELETE
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340 |
DELETE a1,a2 FROM db3.t1 AS a1, db4.t2 AS a2;
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341 |
ERROR 42S02: Table 'db3.t1' doesn't exist
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342 |
DELETE a1,a2 FROM db3.t1 AS a1, db4.t2 AS a2;
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343 |
ERROR 42S02: Table 'db3.t1' doesn't exist
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344 |
DELETE FROM a1,a2 USING db1.t1, db2.t2;
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345 |
ERROR 42S02: Unknown table 'a1' in MULTI DELETE
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346 |
DELETE FROM a1,a2 USING db1.t1, db2.t2;
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347 |
ERROR 42S02: Unknown table 'a1' in MULTI DELETE
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348 |
DELETE FROM a1,a2 USING db1.t1 AS a1, db2.t2;
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349 |
ERROR 42S02: Unknown table 'a2' in MULTI DELETE
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350 |
DELETE FROM a1,a2 USING db1.t1, db2.t2 AS a2;
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351 |
ERROR 42S02: Unknown table 'a1' in MULTI DELETE
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352 |
DELETE FROM a1,a2 USING db3.t1 AS a1, db4.t2 AS a2;
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353 |
ERROR 42S02: Table 'db3.t1' doesn't exist
|
|
354 |
DELETE FROM a1,a2 USING db3.t1 AS a1, db4.t2 AS a2;
|
|
355 |
ERROR 42S02: Table 'db3.t1' doesn't exist
|
|
356 |
DELETE a1 FROM db1.t1 AS a1, db2.t2 AS a1;
|
|
357 |
ERROR 42000: Not unique table/alias: 'a1'
|
|
358 |
DELETE a1 FROM db1.a1, db2.t2 AS a1;
|
|
359 |
ERROR 42S02: Table 'db1.a1' doesn't exist
|
|
360 |
DELETE a1 FROM a1, db1.t1 AS a1;
|
|
361 |
ERROR 42000: Not unique table/alias: 'a1'
|
|
362 |
DELETE t1 FROM db1.t1, db2.t1 AS a1;
|
|
363 |
ERROR 42S02: Unknown table 't1' in MULTI DELETE
|
|
364 |
DELETE t1 FROM db1.t1 AS a1, db2.t1 AS a2;
|
|
365 |
ERROR 42S02: Unknown table 't1' in MULTI DELETE
|
|
366 |
DELETE t1 FROM db1.t1, db2.t1;
|
|
367 |
ERROR 42S02: Unknown table 't1' in MULTI DELETE
|
|
368 |
DELETE t1 FROM db1.t2 AS t1, db2.t2 AS t2 WHERE t2.a = 1 AND t1.a = t2.a;
|
|
369 |
SELECT ROW_COUNT();
|
|
370 |
ROW_COUNT()
|
|
371 |
1
|
|
372 |
DELETE a1, a2 FROM db2.t1 AS a1, t2 AS a2 WHERE a1.a = 2 AND a2.a = 2;
|
|
373 |
SELECT ROW_COUNT();
|
|
374 |
ROW_COUNT()
|
|
375 |
2
|
|
376 |
DROP DATABASE db1;
|
|
377 |
DROP DATABASE db2;
|
|
378 |
DROP TABLE t1, t2;
|