1
DROP TABLE IF EXISTS t1, t2;
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CREATE TABLE t1 (a INT, b INT, c INT, UNIQUE (A), UNIQUE(B));
3
INSERT t1 VALUES (1,2,10), (3,4,20);
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INSERT t1 VALUES (5,6,30) ON DUPLICATE KEY UPDATE c=c+100;
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INSERT t1 VALUES (5,7,40) ON DUPLICATE KEY UPDATE c=c+100;
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INSERT t1 VALUES (8,4,50) ON DUPLICATE KEY UPDATE c=c+1000;
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INSERT t1 VALUES (1,4,60) ON DUPLICATE KEY UPDATE c=c+10000;
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INSERT t1 VALUES (1,9,70) ON DUPLICATE KEY UPDATE c=c+100000, b=4;
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ERROR 23000: Duplicate entry '4' for key 'b'
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INSERT t1 VALUES (1,2,10), (3,4,20);
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INSERT t1 VALUES (5,6,30), (7,4,40), (8,9,60) ON DUPLICATE KEY UPDATE c=c+100;
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INSERT t1 SET a=5 ON DUPLICATE KEY UPDATE b=0;
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INSERT t1 VALUES (2,1,11), (7,4,40) ON DUPLICATE KEY UPDATE c=c+VALUES(a);
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SELECT *, VALUES(a) FROM t1;
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explain extended SELECT *, VALUES(a) FROM t1;
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id select_type table type possible_keys key key_len ref rows filtered Extra
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1 SIMPLE t1 ALL NULL NULL NULL NULL 5 100.00
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Note 1003 select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b`,`test`.`t1`.`c` AS `c`,values(`test`.`t1`.`a`) AS `VALUES(a)` from `test`.`t1`
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explain extended select * from t1 where values(a);
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id select_type table type possible_keys key key_len ref rows filtered Extra
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1 SIMPLE t1 ALL NULL NULL NULL NULL 5 100.00 Using where
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Note 1003 select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b`,`test`.`t1`.`c` AS `c` from `test`.`t1` where values(`test`.`t1`.`a`)
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create table t1(a int primary key, b int);
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insert into t1 values(1,1),(2,2),(3,3),(4,4),(5,5);
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insert into t1 values(4,14),(5,15),(6,16),(7,17),(8,18)
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on duplicate key update b=b+10;
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info: Records: 5 Duplicates: 2 Warnings: 0
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replace into t1 values(5,25),(6,26),(7,27),(8,28),(9,29);
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info: Records: 5 Duplicates: 4 Warnings: 0
108
CREATE TABLE t1 (a INT, b INT, c INT, UNIQUE (A), UNIQUE(B));
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INSERT t1 VALUES (1,2,10), (3,4,20);
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INSERT t1 SELECT 5,6,30 ON DUPLICATE KEY UPDATE c=c+100;
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INSERT t1 SELECT 5,7,40 ON DUPLICATE KEY UPDATE c=c+100;
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INSERT t1 SELECT 8,4,50 ON DUPLICATE KEY UPDATE c=c+1000;
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INSERT t1 SELECT 1,4,60 ON DUPLICATE KEY UPDATE c=c+10000;
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INSERT t1 SELECT 1,9,70 ON DUPLICATE KEY UPDATE c=c+100000, b=4;
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ERROR 23000: Duplicate entry '4' for key 'b'
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INSERT t1 VALUES (1,2,10), (3,4,20);
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CREATE TABLE t2 (a INT, b INT, c INT, d INT);
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INSERT t2 VALUES (5,6,30,1), (7,4,40,1), (8,9,60,1);
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INSERT t2 VALUES (2,1,11,2), (7,4,40,2);
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INSERT t1 SELECT a,b,c FROM t2 WHERE d=1 ON DUPLICATE KEY UPDATE c=t1.c+100;
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INSERT t1 SET a=5 ON DUPLICATE KEY UPDATE b=0;
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INSERT t1 SELECT a,b,c FROM t2 WHERE d=2 ON DUPLICATE KEY UPDATE c=c+VALUES(a);
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ERROR 23000: Column 'c' in field list is ambiguous
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INSERT t1 SELECT a,b,c FROM t2 WHERE d=2 ON DUPLICATE KEY UPDATE c=t1.c+VALUES(t1.a);
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SELECT *, VALUES(a) FROM t1;
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create table t1 (a int not null unique) engine=myisam;
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insert into t1 values (1),(2);
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insert ignore into t1 select 1 on duplicate key update a=2;
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insert ignore into t1 select a from t1 as t2 on duplicate key update a=t1.a+1 ;
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insert into t1 select 1 on duplicate key update a=2;
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insert into t1 select a from t1 on duplicate key update a=a+1 ;
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ERROR 23000: Column 'a' in field list is ambiguous
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insert ignore into t1 select a from t1 on duplicate key update a=t1.a+1 ;
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ERROR 23000: Column 't1.a' in field list is ambiguous
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a BIGINT NOT NULL DEFAULT 0,
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INSERT INTO t1 ( a ) SELECT 0 ON DUPLICATE KEY UPDATE a = a + VALUES (a) ;
206
INSERT INTO t1 VALUES (45, 1) ON DUPLICATE KEY UPDATE b =
207
IF(VALUES(b) > t1.b, VALUES(b), t1.b);
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INSERT INTO t1 VALUES (45, 2) ON DUPLICATE KEY UPDATE b =
212
IF(VALUES(b) > t1.b, VALUES(b), t1.b);
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INSERT INTO t1 VALUES (45, 1) ON DUPLICATE KEY UPDATE b =
217
IF(VALUES(b) > t1.b, VALUES(b), t1.b);
222
CREATE TABLE t1 (i INT PRIMARY KEY, j INT);
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INSERT INTO t1 SELECT 1, j;
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ERROR 42S22: Unknown column 'j' in 'field list'
226
CREATE TABLE t1 (i INT PRIMARY KEY, j INT);
227
CREATE TABLE t2 (a INT, b INT);
228
CREATE TABLE t3 (a INT, c INT);
229
INSERT INTO t1 SELECT 1, a FROM t2 NATURAL JOIN t3
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ON DUPLICATE KEY UPDATE j= a;
232
CREATE TABLE t1 (i INT PRIMARY KEY, j INT);
233
CREATE TABLE t2 (a INT);
234
INSERT INTO t1 VALUES (1, 1);
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INSERT INTO t2 VALUES (1), (3);
236
INSERT INTO t1 SELECT 1, COUNT(*) FROM t2 ON DUPLICATE KEY UPDATE j= a;
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ERROR 42S22: Unknown column 'a' in 'field list'
239
CREATE TABLE t1 (a INT PRIMARY KEY, b INT NOT NULL);
240
INSERT INTO t1 (a) VALUES (1);
241
ERROR HY000: Field 'b' doesn't have a default value
242
INSERT INTO t1 (a) VALUES (1) ON DUPLICATE KEY UPDATE a = b;
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ERROR HY000: Field 'b' doesn't have a default value
244
INSERT INTO t1 (a) VALUES (1) ON DUPLICATE KEY UPDATE b = b;
245
ERROR HY000: Field 'b' doesn't have a default value
249
CREATE TABLE t1 (f1 INT AUTO_INCREMENT PRIMARY KEY,
250
f2 VARCHAR(5) NOT NULL UNIQUE);
251
INSERT t1 (f2) VALUES ('test') ON DUPLICATE KEY UPDATE f1 = LAST_INSERT_ID(f1);
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SELECT LAST_INSERT_ID();
255
INSERT t1 (f2) VALUES ('test') ON DUPLICATE KEY UPDATE f1 = LAST_INSERT_ID(f1);
256
SELECT LAST_INSERT_ID();
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`id` int PRIMARY KEY auto_increment,
262
`f1` varchar(10) NOT NULL UNIQUE
264
INSERT IGNORE INTO t1 (f1) VALUES ("test1")
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ON DUPLICATE KEY UPDATE id=LAST_INSERT_ID(id);
266
INSERT IGNORE INTO t1 (f1) VALUES ("test1")
267
ON DUPLICATE KEY UPDATE id=LAST_INSERT_ID(id);
268
SELECT LAST_INSERT_ID();
274
INSERT IGNORE INTO t1 (f1) VALUES ("test2")
275
ON DUPLICATE KEY UPDATE id=LAST_INSERT_ID(id);
280
INSERT IGNORE INTO t1 (f1) VALUES ("test2")
281
ON DUPLICATE KEY UPDATE id=LAST_INSERT_ID(id);
282
SELECT LAST_INSERT_ID();
289
INSERT IGNORE INTO t1 (f1) VALUES ("test3")
290
ON DUPLICATE KEY UPDATE id=LAST_INSERT_ID(id);
291
SELECT LAST_INSERT_ID();
301
`id` int PRIMARY KEY auto_increment,
302
`f1` varchar(10) NOT NULL UNIQUE
304
INSERT IGNORE INTO t1 (f1) VALUES ("test1")
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ON DUPLICATE KEY UPDATE id=LAST_INSERT_ID(id);
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SELECT LAST_INSERT_ID();
312
INSERT IGNORE INTO t1 (f1) VALUES ("test1"),("test4")
313
ON DUPLICATE KEY UPDATE id=LAST_INSERT_ID(id);
314
SELECT LAST_INSERT_ID();
323
`id` int PRIMARY KEY auto_increment,
324
`f1` varchar(10) NOT NULL UNIQUE,
325
tim1 timestamp default '2003-01-01 00:00:00' on update current_timestamp
327
INSERT INTO t1 (f1) VALUES ("test1");
328
SELECT id, f1 FROM t1;
331
REPLACE INTO t1 VALUES (0,"test1",null);
332
SELECT id, f1 FROM t1;
337
id INT AUTO_INCREMENT PRIMARY KEY,
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c1 CHAR(1) UNIQUE KEY,
341
INSERT INTO t1 (c1) VALUES ('A'), ('B'), ('C');
347
INSERT INTO t1 (c1) VALUES ('A'), ('X'), ('Y'), ('Z')
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ON DUPLICATE KEY UPDATE cnt=cnt+1;
359
id INT AUTO_INCREMENT PRIMARY KEY,
363
INSERT INTO t1 (id,c1) VALUES (1,10);
367
CREATE TABLE t2 (id INT, c1 INT);
368
INSERT INTO t2 VALUES (1,NULL), (2,2);
369
INSERT INTO t1 (id,c1) SELECT 1,NULL
370
ON DUPLICATE KEY UPDATE c1=NULL;
371
ERROR 23000: Column 'c1' cannot be null
375
INSERT IGNORE INTO t1 (id,c1) SELECT 1,NULL
376
ON DUPLICATE KEY UPDATE c1=NULL, cnt=cnt+1;
378
Warning 1048 Column 'c1' cannot be null
379
Error 1048 Column 'c1' cannot be null
383
INSERT IGNORE INTO t1 (id,c1) SELECT * FROM t2
384
ON DUPLICATE KEY UPDATE c1=NULL, cnt=cnt+1;
386
Warning 1048 Column 'c1' cannot be null
387
Error 1048 Column 'c1' cannot be null
393
create table t1(f1 int primary key,
394
f2 timestamp NOT NULL default CURRENT_TIMESTAMP on update CURRENT_TIMESTAMP);
395
insert into t1(f1) values(1);
396
select @stamp1:=f2 from t1;
399
insert into t1(f1) values(1) on duplicate key update f1=1;
400
select @stamp2:=f2 from t1;
403
select if( @stamp1 = @stamp2, "correct", "wrong");
404
if( @stamp1 = @stamp2, "correct", "wrong")