1
drop table if exists t1,t2,t3,t11,t12;
2
CREATE TABLE t1 (a int, b int);
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,
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c bigint not null default 0,
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d bigint not null default 0,
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e bigint not null default 0,
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f bigint not null default 0,
26
g bigint not null default 0,
27
h bigint not null default 0,
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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,
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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,
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g bigint not null default 0,
42
h bigint not null default 0,
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i bigint not null default 0,
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j bigint not null default 0,
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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 NOT NULL default '0',
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`i2` int 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,
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not_null varchar(20) binary NOT NULL default '',
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misc integer not null,
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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));
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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);
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insert into t12 values (33, 10),(0, 11),(2, 12);
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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
138
insert into t11 values (2, 12);
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delete from t11 where t11.b <> (select b from t2 where t11.a < t2.a);
140
ERROR 21000: Subquery returns more than 1 row
146
delete ignore from t11 where t11.b <> (select b from t2 where t11.a < t2.a);
148
Error 1242 Subquery returns more than 1 row
149
Error 1242 Subquery returns more than 1 row
154
drop table t11, t12, t2;
155
create table t1 (a int, b int, unique key (a), key (b));
156
insert into t1 values (3, 3), (7, 7);
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delete t1 from t1 where a = 3;
159
Table Op Msg_type Msg_text
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test.t1 check status OK
165
CREATE TABLE t1 ( a int PRIMARY KEY );
166
DELETE FROM t1 WHERE t1.a > 0 ORDER BY t1.a;
167
INSERT INTO t1 VALUES (0),(1),(2);
168
DELETE FROM t1 WHERE t1.a > 0 ORDER BY t1.a LIMIT 1;
174
create table t1 (a int);
175
delete `4.t1` from t1 as `4.t1` where `4.t1`.a = 5;
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delete FROM `4.t1` USING t1 as `4.t1` where `4.t1`.a = 5;
178
create table t1(f1 int primary key);
179
insert into t1 values (4),(3),(1),(2);
180
delete from t1 where (@a:= f1) order by f1 limit 1;
188
`seq` int NOT NULL auto_increment,
194
DELETE FROM t1 ORDER BY date ASC, time ASC LIMIT 1;
197
CREATE TABLE t1 (a int not null,b int not null);
198
CREATE TABLE t2 (a int not null, b int not null, primary key (a,b));
199
CREATE TABLE t3 (a int not null, b int not null, primary key (a,b));
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insert into t1 values (1,1),(2,1),(1,3);
201
insert into t2 values (1,1),(2,2),(3,3);
202
insert into t3 values (1,1),(2,1),(1,3);
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select * from t1,t2,t3 where t1.a=t2.a AND t2.b=t3.a and t1.b=t3.b;
208
explain select * from t1,t2,t3 where t1.a=t2.a AND t2.b=t3.a and t1.b=t3.b;
209
id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t1 ALL NULL NULL NULL NULL 3
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1 SIMPLE t2 ref PRIMARY PRIMARY 4 test.t1.a 1 Using index
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1 SIMPLE t3 eq_ref PRIMARY PRIMARY 8 test.t2.b,test.t1.b 1 Using index
213
delete t2.*,t3.* from t1,t2,t3 where t1.a=t2.a AND t2.b=t3.a and t1.b=t3.b;
217
create table t1(a date not null);
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insert into t1 values (0);
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select * from t1 where a is null;
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delete from t1 where a is null;
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select count(*) from t1;
227
CREATE TABLE t1 (a INT);
228
INSERT INTO t1 VALUES (1);
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DELETE FROM t1 ORDER BY x;
230
ERROR 42S22: Unknown column 'x' in 'order clause'
231
DELETE FROM t1 ORDER BY t2.x;
232
ERROR 42S22: Unknown column 't2.x' in 'order clause'
233
DELETE FROM t1 ORDER BY (SELECT x);
234
ERROR 42S22: Unknown column 'x' in 'field list'
243
CREATE TABLE db1.t1 (
246
INSERT INTO db1.t1 (a) SELECT * FROM t1;
248
CREATE TABLE db2.t1 (
251
INSERT INTO db2.t1 (a) SELECT * FROM t2;
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DELETE FROM t1 alias USING t1, t2 alias WHERE t1.a = alias.a;
253
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
254
DELETE FROM alias USING t1, t2 alias WHERE t1.a = alias.a;
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DELETE FROM t1, alias USING t1, t2 alias WHERE t1.a = alias.a;
256
DELETE FROM t1, t2 USING t1, t2 alias WHERE t1.a = alias.a;
257
ERROR 42S02: Unknown table 't2' in MULTI DELETE
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DELETE FROM db1.t1 alias USING db1.t1, db2.t1 alias WHERE db1.t1.a = alias.a;
259
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
260
DELETE FROM alias USING db1.t1, db2.t1 alias WHERE db1.t1.a = alias.a;
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DELETE FROM db2.alias USING db1.t1, db2.t1 alias WHERE db1.t1.a = alias.a;
262
ERROR 42S02: Unknown table 'alias' in MULTI DELETE
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DELETE FROM t1 USING t1 WHERE a = 1;
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DELETE FROM t1 alias USING t1 alias WHERE a = 2;
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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
274
DROP DATABASE IF EXISTS db1;
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DROP DATABASE IF EXISTS db2;
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DROP DATABASE IF EXISTS db3;
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DROP DATABASE IF EXISTS db4;
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DROP TABLE IF EXISTS t1, t2;
282
CREATE TABLE db1.t1 (a INT, b INT);
283
INSERT INTO db1.t1 VALUES (1,1),(2,2),(3,3);
284
CREATE TABLE db1.t2 AS SELECT * FROM db1.t1;
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CREATE TABLE db2.t1 AS SELECT * FROM db1.t2;
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CREATE TABLE db2.t2 AS SELECT * FROM db2.t1;
287
CREATE TABLE t1 AS SELECT * FROM db2.t2;
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CREATE TABLE t2 AS SELECT * FROM t1;
293
ERROR 3D000: No database selected
294
DELETE a1,a2 FROM db1.t1, db2.t2;
295
ERROR 3D000: No database selected
296
DELETE a1,a2 FROM db1.t1, db2.t2;
297
ERROR 3D000: No database selected
298
DELETE a1,a2 FROM db1.t1 AS a1, db2.t2;
299
ERROR 3D000: No database selected
300
DELETE a1,a2 FROM db1.t1, db2.t2 AS a2;
301
ERROR 3D000: No database selected
302
DELETE a1,a2 FROM db3.t1 AS a1, db4.t2 AS a2;
303
ERROR 3D000: No database selected
304
DELETE a1,a2 FROM db3.t1 AS a1, db4.t2 AS a2;
305
ERROR 3D000: No database selected
306
DELETE FROM a1,a2 USING db1.t1, db2.t2;
307
ERROR 3D000: No database selected
308
DELETE FROM a1,a2 USING db1.t1, db2.t2;
309
ERROR 3D000: No database selected
310
DELETE FROM a1,a2 USING db1.t1 AS a1, db2.t2;
311
ERROR 3D000: No database selected
312
DELETE FROM a1,a2 USING db1.t1, db2.t2 AS a2;
313
ERROR 3D000: No database selected
314
DELETE FROM a1,a2 USING db3.t1 AS a1, db4.t2 AS a2;
315
ERROR 3D000: No database selected
316
DELETE FROM a1,a2 USING db3.t1 AS a1, db4.t2 AS a2;
317
ERROR 3D000: No database selected
318
DELETE a1 FROM db1.t1 AS a1, db2.t2 AS a1;
319
ERROR 3D000: No database selected
320
DELETE a1 FROM db1.a1, db2.t2 AS a1;
321
ERROR 3D000: No database selected
322
DELETE a1 FROM a1, db1.t1 AS a1;
323
ERROR 3D000: No database selected
324
DELETE t1 FROM db1.t1, db2.t1 AS a1;
325
ERROR 3D000: No database selected
326
DELETE t1 FROM db1.t1 AS a1, db2.t1 AS a2;
327
ERROR 3D000: No database selected
328
DELETE t1 FROM db1.t1, db2.t1;
329
ERROR 3D000: No database selected
331
DELETE a1,a2 FROM db1.t1, db2.t2;
332
ERROR 42S02: Unknown table 'a1' in MULTI DELETE
333
DELETE a1,a2 FROM db1.t1, db2.t2;
334
ERROR 42S02: Unknown table 'a1' in MULTI DELETE
335
DELETE a1,a2 FROM db1.t1 AS a1, db2.t2;
336
ERROR 42S02: Unknown table 'a2' in MULTI DELETE
337
DELETE a1,a2 FROM db1.t1, db2.t2 AS a2;
338
ERROR 42S02: Unknown table 'a1' in MULTI DELETE
339
DELETE a1,a2 FROM db3.t1 AS a1, db4.t2 AS a2;
340
ERROR 42S02: Table 'db3.t1' doesn't exist
341
DELETE a1,a2 FROM db3.t1 AS a1, db4.t2 AS a2;
342
ERROR 42S02: Table 'db3.t1' doesn't exist
343
DELETE FROM a1,a2 USING db1.t1, db2.t2;
344
ERROR 42S02: Unknown table 'a1' in MULTI DELETE
345
DELETE FROM a1,a2 USING db1.t1, db2.t2;
346
ERROR 42S02: Unknown table 'a1' in MULTI DELETE
347
DELETE FROM a1,a2 USING db1.t1 AS a1, db2.t2;
348
ERROR 42S02: Unknown table 'a2' in MULTI DELETE
349
DELETE FROM a1,a2 USING db1.t1, db2.t2 AS a2;
350
ERROR 42S02: Unknown table 'a1' in MULTI DELETE
351
DELETE FROM a1,a2 USING db3.t1 AS a1, db4.t2 AS a2;
352
ERROR 42S02: Table 'db3.t1' doesn't exist
353
DELETE FROM a1,a2 USING db3.t1 AS a1, db4.t2 AS a2;
354
ERROR 42S02: Table 'db3.t1' doesn't exist
355
DELETE a1 FROM db1.t1 AS a1, db2.t2 AS a1;
356
ERROR 42000: Not unique table/alias: 'a1'
357
DELETE a1 FROM db1.a1, db2.t2 AS a1;
358
ERROR 42S02: Table 'db1.a1' doesn't exist
359
DELETE a1 FROM a1, db1.t1 AS a1;
360
ERROR 42000: Not unique table/alias: 'a1'
361
DELETE t1 FROM db1.t1, db2.t1 AS a1;
362
ERROR 42S02: Unknown table 't1' in MULTI DELETE
363
DELETE t1 FROM db1.t1 AS a1, db2.t1 AS a2;
364
ERROR 42S02: Unknown table 't1' in MULTI DELETE
365
DELETE t1 FROM db1.t1, db2.t1;
366
ERROR 42S02: Unknown table 't1' in MULTI DELETE
367
DELETE t1 FROM db1.t2 AS t1, db2.t2 AS t2 WHERE t2.a = 1 AND t1.a = t2.a;
371
DELETE a1, a2 FROM db2.t1 AS a1, t2 AS a2 WHERE a1.a = 2 AND a2.a = 2;