1
DROP TABLE IF EXISTS t1, t2;
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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 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);
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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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CREATE TEMPORARY TABLE t1 (
196
a BIGINT NOT NULL DEFAULT 0,
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INSERT INTO t1 ( a ) SELECT 0 ON DUPLICATE KEY UPDATE a = a + VALUES (a) ;
207
INSERT INTO t1 VALUES (45, 1) ON DUPLICATE KEY UPDATE b =
208
IF(VALUES(b) > t1.b, VALUES(b), t1.b);
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INSERT INTO t1 VALUES (45, 2) ON DUPLICATE KEY UPDATE b =
213
IF(VALUES(b) > t1.b, VALUES(b), t1.b);
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INSERT INTO t1 VALUES (45, 1) ON DUPLICATE KEY UPDATE b =
218
IF(VALUES(b) > t1.b, VALUES(b), t1.b);
223
CREATE TABLE t1 (i INT PRIMARY KEY, j INT);
224
INSERT INTO t1 SELECT 1, j;
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ERROR 42S22: Unknown column 'j' in 'field list'
227
CREATE TABLE t1 (i INT PRIMARY KEY, j INT);
228
CREATE TABLE t2 (a INT, b INT);
229
CREATE TABLE t3 (a INT, c INT);
230
INSERT INTO t1 SELECT 1, a FROM t2 NATURAL JOIN t3
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ON DUPLICATE KEY UPDATE j= a;
233
CREATE TABLE t1 (i INT PRIMARY KEY, j INT);
234
CREATE TABLE t2 (a INT);
235
INSERT INTO t1 VALUES (1, 1);
236
INSERT INTO t2 VALUES (1), (3);
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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'
240
CREATE TABLE t1 (a INT PRIMARY KEY, b INT NOT NULL);
241
INSERT INTO t1 (a) VALUES (1);
242
ERROR HY000: Field 'b' doesn't have a default value
243
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
245
INSERT INTO t1 (a) VALUES (1) ON DUPLICATE KEY UPDATE b = b;
246
ERROR HY000: Field 'b' doesn't have a default value
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CREATE TABLE t1 (f1 INT AUTO_INCREMENT PRIMARY KEY,
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f2 VARCHAR(5) NOT NULL UNIQUE);
252
INSERT t1 (f2) VALUES ('test') ON DUPLICATE KEY UPDATE f1 = LAST_INSERT_ID(f1);
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SELECT LAST_INSERT_ID();
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INSERT t1 (f2) VALUES ('test') ON DUPLICATE KEY UPDATE f1 = LAST_INSERT_ID(f1);
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SELECT LAST_INSERT_ID();
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`id` int PRIMARY KEY auto_increment,
263
`f1` varchar(10) NOT NULL UNIQUE
265
INSERT IGNORE INTO t1 (f1) VALUES ("test1")
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ON DUPLICATE KEY UPDATE id=LAST_INSERT_ID(id);
267
INSERT IGNORE INTO t1 (f1) VALUES ("test1")
268
ON DUPLICATE KEY UPDATE id=LAST_INSERT_ID(id);
269
SELECT LAST_INSERT_ID();
275
INSERT IGNORE INTO t1 (f1) VALUES ("test2")
276
ON DUPLICATE KEY UPDATE id=LAST_INSERT_ID(id);
281
INSERT IGNORE INTO t1 (f1) VALUES ("test2")
282
ON DUPLICATE KEY UPDATE id=LAST_INSERT_ID(id);
283
SELECT LAST_INSERT_ID();
290
INSERT IGNORE INTO t1 (f1) VALUES ("test3")
291
ON DUPLICATE KEY UPDATE id=LAST_INSERT_ID(id);
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SELECT LAST_INSERT_ID();
302
`id` int PRIMARY KEY auto_increment,
303
`f1` varchar(10) NOT NULL UNIQUE
305
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();
313
INSERT IGNORE INTO t1 (f1) VALUES ("test1"),("test4")
314
ON DUPLICATE KEY UPDATE id=LAST_INSERT_ID(id);
315
SELECT LAST_INSERT_ID();
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`id` int PRIMARY KEY auto_increment,
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`f1` varchar(10) NOT NULL UNIQUE,
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tim1 timestamp default '2003-01-01 00:00:00' on update current_timestamp
328
INSERT INTO t1 (f1) VALUES ("test1");
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SELECT id, f1 FROM t1;
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REPLACE INTO t1 VALUES (null,"test1",null);
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SELECT id, f1 FROM t1;
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id INT AUTO_INCREMENT PRIMARY KEY,
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c1 CHAR(1) UNIQUE KEY,
342
INSERT INTO t1 (c1) VALUES ('A'), ('B'), ('C');
348
INSERT INTO t1 (c1) VALUES ('A'), ('X'), ('Y'), ('Z')
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ON DUPLICATE KEY UPDATE cnt=cnt+1;
360
id INT AUTO_INCREMENT PRIMARY KEY,
364
INSERT INTO t1 (id,c1) VALUES (1,10);
368
CREATE TABLE t2 (id INT, c1 INT);
369
INSERT INTO t2 VALUES (1,NULL), (2,2);
370
INSERT INTO t1 (id,c1) SELECT 1,NULL
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ON DUPLICATE KEY UPDATE c1=NULL;
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ERROR 23000: Column 'c1' cannot be null
376
INSERT IGNORE INTO t1 (id,c1) SELECT 1,NULL
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ON DUPLICATE KEY UPDATE c1=NULL, cnt=cnt+1;
379
Warning 1048 Column 'c1' cannot be null
380
Error 1048 Column 'c1' cannot be null
384
INSERT IGNORE INTO t1 (id,c1) SELECT * FROM t2
385
ON DUPLICATE KEY UPDATE c1=NULL, cnt=cnt+1;
387
Warning 1048 Column 'c1' cannot be null
388
Error 1048 Column 'c1' cannot be null
394
create table t1(f1 int primary key,
395
f2 timestamp NOT NULL default CURRENT_TIMESTAMP on update CURRENT_TIMESTAMP);
396
insert into t1(f1) values(1);
397
select @stamp1:=f2 from t1;
400
insert into t1(f1) values(1) on duplicate key update f1=1;
401
select @stamp2:=f2 from t1;
404
select if( @stamp1 = @stamp2, "correct", "wrong");
405
if( @stamp1 = @stamp2, "correct", "wrong")