1
drop table if exists t1,t2,t3,t11,t12;
2
CREATE TABLE t1 (a tinyint(3), b tinyint(5));
3
INSERT INTO t1 VALUES (1,1);
4
INSERT LOW_PRIORITY INTO t1 VALUES (1,2);
5
INSERT INTO t1 VALUES (1,3);
6
DELETE from t1 where a=1 limit 1;
7
DELETE LOW_PRIORITY from t1 where a=1;
8
INSERT INTO t1 VALUES (1,1);
11
INSERT INTO t1 VALUES (1,2);
14
INSERT INTO t1 VALUES (1,2);
21
b bigint not null default 0,
22
c bigint not null default 0,
23
d bigint not null default 0,
24
e bigint not null default 0,
25
f bigint not null default 0,
26
g bigint not null default 0,
27
h bigint not null default 0,
28
i bigint not null default 0,
29
j bigint not null default 0,
30
primary key (a,b,c,d,e,f,g,h,i,j));
31
insert into t1 (a) values (2),(4),(6),(8),(10),(12),(14),(16),(18),(20),(22),(24),(26),(23);
32
delete from t1 where a=26;
36
b bigint not null default 0,
37
c bigint not null default 0,
38
d bigint not null default 0,
39
e bigint not null default 0,
40
f bigint not null default 0,
41
g bigint not null default 0,
42
h bigint not null default 0,
43
i bigint not null default 0,
44
j bigint not null default 0,
45
primary key (a,b,c,d,e,f,g,h,i,j));
46
insert into t1 (a) values (2),(4),(6),(8),(10),(12),(14),(16),(18),(20),(22),(24),(26),(23),(27);
47
delete from t1 where a=27;
50
`i` int(10) NOT NULL default '0',
51
`i2` int(10) NOT NULL default '0',
54
DELETE FROM t1 USING t1 WHERE post='1';
55
ERROR 42S22: Unknown column 'post' in 'where clause'
58
bool char(0) default NULL,
59
not_null varchar(20) binary NOT NULL default '',
60
misc integer not null,
61
PRIMARY KEY (not_null)
63
INSERT INTO t1 VALUES (NULL,'a',4), (NULL,'b',5), (NULL,'c',6), (NULL,'d',7);
64
select * from t1 where misc > 5 and bool is null;
68
delete from t1 where misc > 5 and bool is null;
69
select * from t1 where misc > 5 and bool is null;
71
select count(*) from t1;
74
delete from t1 where 1 > 2;
75
select count(*) from t1;
78
delete from t1 where 3 > 2;
79
select count(*) from t1;
83
create table t1 (a int not null auto_increment primary key, b char(32));
84
insert into t1 (b) values ('apple'), ('apple');
89
delete t1 from t1, t1 as t2 where t1.b = t2.b and t1.a > t2.a;
94
create table t11 (a int NOT NULL, b int, primary key (a));
95
create table t12 (a int NOT NULL, b int, primary key (a));
96
create table t2 (a int NOT NULL, b int, primary key (a));
97
insert into t11 values (0, 10),(1, 11),(2, 12);
98
insert into t12 values (33, 10),(0, 11),(2, 12);
99
insert into t2 values (1, 21),(2, 12),(3, 23);
115
delete t11.*, t12.* from t11,t12 where t11.a = t12.a and t11.b <> (select b from t2 where t11.a < t2.a);
116
ERROR 21000: Subquery returns more than 1 row
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);
129
Error 1242 Subquery returns more than 1 row
130
Error 1242 Subquery returns more than 1 row
139
insert into t11 values (2, 12);
140
delete from t11 where t11.b <> (select b from t2 where t11.a < t2.a);
141
ERROR 21000: Subquery returns more than 1 row
147
delete ignore from t11 where t11.b <> (select b from t2 where t11.a < t2.a);
149
Error 1242 Subquery returns more than 1 row
150
Error 1242 Subquery returns more than 1 row
155
drop table t11, t12, t2;
156
create table t1 (a int, b int, unique key (a), key (b));
157
insert into t1 values (3, 3), (7, 7);
158
delete t1 from t1 where a = 3;
160
Table Op Msg_type Msg_text
161
test.t1 check status OK
166
CREATE TABLE t1 ( a int PRIMARY KEY );
167
DELETE FROM t1 WHERE t1.a > 0 ORDER BY t1.a;
168
INSERT INTO t1 VALUES (0),(1),(2);
169
DELETE FROM t1 WHERE t1.a > 0 ORDER BY t1.a LIMIT 1;
175
create table t1 (a int);
176
delete `4.t1` from t1 as `4.t1` where `4.t1`.a = 5;
177
delete FROM `4.t1` USING t1 as `4.t1` where `4.t1`.a = 5;
179
create table t1(f1 int primary key);
180
insert into t1 values (4),(3),(1),(2);
181
delete from t1 where (@a:= f1) order by f1 limit 1;
189
`seq` int(10) unsigned NOT NULL auto_increment,
195
DELETE FROM t1 ORDER BY date ASC, time ASC LIMIT 1;
198
CREATE TABLE t1 (a int not null,b int not null);
199
CREATE TABLE t2 (a int not null, b int not null, primary key (a,b));
200
CREATE TABLE t3 (a int not null, b int not null, primary key (a,b));
201
insert into t1 values (1,1),(2,1),(1,3);
202
insert into t2 values (1,1),(2,2),(3,3);
203
insert into t3 values (1,1),(2,1),(1,3);
204
select * from t1,t2,t3 where t1.a=t2.a AND t2.b=t3.a and t1.b=t3.b;
209
explain select * from t1,t2,t3 where t1.a=t2.a AND t2.b=t3.a and t1.b=t3.b;
210
id select_type table type possible_keys key key_len ref rows Extra
211
1 SIMPLE t1 ALL NULL NULL NULL NULL 3
212
1 SIMPLE t2 ref PRIMARY PRIMARY 4 test.t1.a 1 Using index
213
1 SIMPLE t3 eq_ref PRIMARY PRIMARY 8 test.t2.b,test.t1.b 1 Using index
214
delete t2.*,t3.* from t1,t2,t3 where t1.a=t2.a AND t2.b=t3.a and t1.b=t3.b;
218
create table t1(a date not null);
219
insert into t1 values (0);
220
select * from t1 where a is null;
223
delete from t1 where a is null;
224
select count(*) from t1;
228
CREATE TABLE t1 (a INT);
229
INSERT INTO t1 VALUES (1);
230
DELETE FROM t1 ORDER BY x;
231
ERROR 42S22: Unknown column 'x' in 'order clause'
232
DELETE FROM t1 ORDER BY t2.x;
233
ERROR 42S22: Unknown column 't2.x' in 'order clause'
234
DELETE FROM t1 ORDER BY (SELECT x);
235
ERROR 42S22: Unknown column 'x' in 'field list'
244
CREATE TABLE db1.t1 (
247
INSERT INTO db1.t1 (a) SELECT * FROM t1;
249
CREATE TABLE db2.t1 (
252
INSERT INTO db2.t1 (a) SELECT * FROM t2;
253
DELETE FROM t1 alias USING t1, t2 alias WHERE t1.a = alias.a;
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
255
DELETE FROM alias USING t1, t2 alias WHERE t1.a = alias.a;
256
DELETE FROM t1, alias USING t1, t2 alias WHERE t1.a = alias.a;
257
DELETE FROM t1, t2 USING t1, t2 alias WHERE t1.a = alias.a;
258
ERROR 42S02: Unknown table 't2' in MULTI DELETE
259
DELETE FROM db1.t1 alias USING db1.t1, db2.t1 alias WHERE db1.t1.a = alias.a;
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
261
DELETE FROM alias USING db1.t1, db2.t1 alias WHERE db1.t1.a = alias.a;
262
DELETE FROM db2.alias USING db1.t1, db2.t1 alias WHERE db1.t1.a = alias.a;
263
ERROR 42S02: Unknown table 'alias' in MULTI DELETE
264
DELETE FROM t1 USING t1 WHERE a = 1;
267
DELETE FROM t1 alias USING t1 alias WHERE a = 2;
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
275
DROP DATABASE IF EXISTS db1;
276
DROP DATABASE IF EXISTS db2;
277
DROP DATABASE IF EXISTS db3;
278
DROP DATABASE IF EXISTS db4;
279
DROP TABLE IF EXISTS t1, t2;
283
CREATE TABLE db1.t1 (a INT, b INT);
284
INSERT INTO db1.t1 VALUES (1,1),(2,2),(3,3);
285
CREATE TABLE db1.t2 AS SELECT * FROM db1.t1;
286
CREATE TABLE db2.t1 AS SELECT * FROM db1.t2;
287
CREATE TABLE db2.t2 AS SELECT * FROM db2.t1;
288
CREATE TABLE t1 AS SELECT * FROM db2.t2;
289
CREATE TABLE t2 AS SELECT * FROM t1;
294
ERROR 3D000: No database selected
295
DELETE a1,a2 FROM db1.t1, db2.t2;
296
ERROR 3D000: No database selected
297
DELETE a1,a2 FROM db1.t1, db2.t2;
298
ERROR 3D000: No database selected
299
DELETE a1,a2 FROM db1.t1 AS a1, db2.t2;
300
ERROR 3D000: No database selected
301
DELETE a1,a2 FROM db1.t1, db2.t2 AS a2;
302
ERROR 3D000: No database selected
303
DELETE a1,a2 FROM db3.t1 AS a1, db4.t2 AS a2;
304
ERROR 3D000: No database selected
305
DELETE a1,a2 FROM db3.t1 AS a1, db4.t2 AS a2;
306
ERROR 3D000: No database selected
307
DELETE FROM a1,a2 USING db1.t1, db2.t2;
308
ERROR 3D000: No database selected
309
DELETE FROM a1,a2 USING db1.t1, db2.t2;
310
ERROR 3D000: No database selected
311
DELETE FROM a1,a2 USING db1.t1 AS a1, db2.t2;
312
ERROR 3D000: No database selected
313
DELETE FROM a1,a2 USING db1.t1, db2.t2 AS a2;
314
ERROR 3D000: No database selected
315
DELETE FROM a1,a2 USING db3.t1 AS a1, db4.t2 AS a2;
316
ERROR 3D000: No database selected
317
DELETE FROM a1,a2 USING db3.t1 AS a1, db4.t2 AS a2;
318
ERROR 3D000: No database selected
319
DELETE a1 FROM db1.t1 AS a1, db2.t2 AS a1;
320
ERROR 3D000: No database selected
321
DELETE a1 FROM db1.a1, db2.t2 AS a1;
322
ERROR 3D000: No database selected
323
DELETE a1 FROM a1, db1.t1 AS a1;
324
ERROR 3D000: No database selected
325
DELETE t1 FROM db1.t1, db2.t1 AS a1;
326
ERROR 3D000: No database selected
327
DELETE t1 FROM db1.t1 AS a1, db2.t1 AS a2;
328
ERROR 3D000: No database selected
329
DELETE t1 FROM db1.t1, db2.t1;
330
ERROR 3D000: No database selected
332
DELETE a1,a2 FROM db1.t1, db2.t2;
333
ERROR 42S02: Unknown table 'a1' in MULTI DELETE
334
DELETE a1,a2 FROM db1.t1, db2.t2;
335
ERROR 42S02: Unknown table 'a1' in MULTI DELETE
336
DELETE a1,a2 FROM db1.t1 AS a1, db2.t2;
337
ERROR 42S02: Unknown table 'a2' in MULTI DELETE
338
DELETE a1,a2 FROM db1.t1, db2.t2 AS a2;
339
ERROR 42S02: Unknown table 'a1' in MULTI DELETE
340
DELETE a1,a2 FROM db3.t1 AS a1, db4.t2 AS a2;
341
ERROR 42S02: Table 'db3.t1' doesn't exist
342
DELETE a1,a2 FROM db3.t1 AS a1, db4.t2 AS a2;
343
ERROR 42S02: Table 'db3.t1' doesn't exist
344
DELETE FROM a1,a2 USING db1.t1, db2.t2;
345
ERROR 42S02: Unknown table 'a1' in MULTI DELETE
346
DELETE FROM a1,a2 USING db1.t1, db2.t2;
347
ERROR 42S02: Unknown table 'a1' in MULTI DELETE
348
DELETE FROM a1,a2 USING db1.t1 AS a1, db2.t2;
349
ERROR 42S02: Unknown table 'a2' in MULTI DELETE
350
DELETE FROM a1,a2 USING db1.t1, db2.t2 AS a2;
351
ERROR 42S02: Unknown table 'a1' in MULTI DELETE
352
DELETE FROM a1,a2 USING db3.t1 AS a1, db4.t2 AS a2;
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;
372
DELETE a1, a2 FROM db2.t1 AS a1, t2 AS a2 WHERE a1.a = 2 AND a2.a = 2;