66 lines
1.4 KiB
Plaintext
66 lines
1.4 KiB
Plaintext
DROP TABLE IF EXISTS t1;
|
|
CREATE TABLE t1 (a INT, b CHAR(8), pk INT AUTO_INCREMENT PRIMARY KEY, KEY(b)) ENGINE=xengine;
|
|
INSERT INTO t1 (a,b) VALUES (1,'a'),(2,'b'),(3,'c'),(4,'d'),(5,'e');
|
|
INSERT INTO t1 (a,b) VALUES (100,'a'), (6,'f');
|
|
INSERT INTO t1 (a,b) VALUES (30,'m'),(29,'n');
|
|
INSERT INTO t1 (a,b) VALUES (1,'a'),(12345,'z');
|
|
INSERT INTO t1 (a,b) VALUES (3,'a'),(0,'');
|
|
SELECT a,b FROM t1;
|
|
a b
|
|
0
|
|
1 a
|
|
1 a
|
|
100 a
|
|
12345 z
|
|
2 b
|
|
29 n
|
|
3 a
|
|
3 c
|
|
30 m
|
|
4 d
|
|
5 e
|
|
6 f
|
|
DROP TABLE t1;
|
|
#----------------------------------------
|
|
# UNIQUE KEYS are not supported currently
|
|
#-----------------------------------------
|
|
CREATE TABLE t1 (a INT PRIMARY KEY, b CHAR(8)) ENGINE=xengine;
|
|
INSERT INTO t1 (a,b) VALUES (1,'a'),(2,'b'),(3,'c'),(4,'d'),(5,'e');
|
|
INSERT INTO t1 (a,b) VALUES (100,'a'), (6,'f');
|
|
INSERT INTO t1 (a,b) VALUES (30,'m'),(29,'n');
|
|
INSERT INTO t1 (a,b) VALUES (1,'a'),(12345,'z');
|
|
ERROR 23000: Duplicate entry '1' for key 'PRIMARY'
|
|
INSERT INTO t1 (a,b) VALUES (3,'a'),(0,'');
|
|
ERROR 23000: Duplicate entry '3' for key 'PRIMARY'
|
|
INSERT INTO t1 (a,b) VALUES (0,'');
|
|
SELECT a,b FROM t1;
|
|
a b
|
|
0
|
|
1 a
|
|
100 a
|
|
2 b
|
|
29 n
|
|
3 c
|
|
30 m
|
|
4 d
|
|
5 e
|
|
6 f
|
|
INSERT IGNORE INTO t1 (a,b) VALUES (1,'a'),(12345,'z');
|
|
Warnings:
|
|
Warning 1062 Duplicate entry '1' for key 'PRIMARY'
|
|
INSERT INTO t1 (a,b) VALUES (1,'a'),(12345,'z') ON DUPLICATE KEY UPDATE b = CONCAT(b,b);
|
|
SELECT a,b FROM t1;
|
|
a b
|
|
0
|
|
1 aa
|
|
100 a
|
|
12345 zz
|
|
2 b
|
|
29 n
|
|
3 c
|
|
30 m
|
|
4 d
|
|
5 e
|
|
6 f
|
|
DROP TABLE t1;
|