Question

我在表'telefono'上收到错误：Error Code: 1062. Duplicate entry '84-1' for key 'PRIMARY'当调用存储过程时它们在表中的顺序相反。

例如，如果我执行call updateProvider("1", "Terra1", "Ana", "Mora", "Escobar", "31312323", "11111111");并且数字31312323和11111111已经在表telefono_proveedor中以相反的顺序存在条目，则会抛出错误。

错误对应于此次更新

UPDATE telefono_proveedor SET id_telefono = var_id_phone1
        WHERE id_telefono = old_id_phone1 AND id_proveedor = var_id_prov;
UPDATE telefono_proveedor SET id_telefono = var_id_phone2
        WHERE id_telefono = old_id_phone2 AND id_proveedor = var_id_prov;

表的SQL：

CREATE TABLE `telefono` (
  `id_telefono` int(10) unsigned NOT NULL AUTO_INCREMENT,
  `tipo` enum('casa','movil','oficina') NOT NULL,
  `numero` varchar(20) NOT NULL,
  PRIMARY KEY (`id_telefono`),
  UNIQUE KEY `id_telefono_UNIQUE` (`id_telefono`),
  UNIQUE KEY `numero_UNIQUE` (`numero`),
  UNIQUE KEY `numero` (`numero`)
) ENGINE=InnoDB AUTO_INCREMENT=119 DEFAULT CHARSET=utf8;

This is the diagram of the table

存储过程：

CREATE DEFINER=`root`@`localhost` PROCEDURE `updateProvider`(
IN var_id_prov INT(10), IN var_provider VARCHAR(20),
IN var_rep_name VARCHAR(20), IN var_rep_last_name VARCHAR(20), 
IN var_rep_last_name2 VARCHAR(20), IN var_phone1 VARCHAR(20), 
IN var_phone2 VARCHAR(20)
)
BEGIN

DECLARE old_id_phone1 INT(10);
DECLARE old_id_phone2 INT(10);
DECLARE var_id_phone1 INT(10);
DECLARE var_id_phone2 INT(10);

SELECT id_telefono INTO old_id_phone1 FROM telefono_proveedor
    WHERE id_proveedor = var_id_prov ORDER BY id_telefono ASC LIMIT 1;
SELECT id_telefono INTO old_id_phone2 FROM telefono_proveedor
    WHERE id_proveedor = var_id_prov ORDER BY id_telefono ASC LIMIT 1,1;

INSERT IGNORE INTO telefono (tipo, numero) VALUES ('oficina', var_phone1);
INSERT IGNORE INTO telefono (tipo, numero) VALUES ('oficina', var_phone2);

SELECT id_telefono INTO var_id_phone1 FROM telefono WHERE numero = var_phone1;
SELECT id_telefono INTO var_id_phone2 FROM telefono WHERE numero = var_phone2;

UPDATE telefono_proveedor SET id_telefono = var_id_phone1
    WHERE id_telefono = old_id_phone1 AND id_proveedor = var_id_prov;
UPDATE telefono_proveedor SET id_telefono = var_id_phone2
    WHERE id_telefono = old_id_phone2 AND id_proveedor = var_id_prov;

UPDATE proveedor SET nombre_proveedor = var_provider, nombre_representante = var_rep_name, 
    apellido1_representante = var_rep_last_name, apellido2_representante = var_rep_last_name2
    WHERE id_proveedor = var_id_prov;

END

Answer 1

为什么要修改这样的主键？你必须使用主键来解决那么多波动的问题。

您似乎正在尝试将主数据库更新为已存在的值。

-- This will create a brand new row with a new/unique id_telefono.
INSERT IGNORE INTO telefono (tipo, numero) VALUES ('oficina', var_phone1);

-- You are selecting the id_telefono that use just inserted.
SELECT id_telefono INTO var_id_phone1 FROM telefono WHERE numero = var_phone1;

-- Now you are updating another row to the id_telefono that you just inserted,
-- resulting in the duplicate primary key error.
/*Actualizo la tabla telefono_proveedor */
UPDATE telefono_proveedor SET id_telefono = var_id_phone1
    WHERE id_telefono = old_id_phone1 AND id_proveedor = var_id_prov;

我建议您单独保留主键，并且一旦创建就不要修改它们。修改表中的其他列以捕获业务需求。

Answer 2

通过将更新更改为删除然后插入来解决。发生错误的原因是我尝试使用属于主键的另一条记录中的值更新记录。现在有了删除和插入顺序无关紧要，因为所有记录都将被删除并再次插入。

原件：

UPDATE telefono_proveedor SET id_telefono = var_id_phone1
        WHERE id_telefono = old_id_phone1 AND id_proveedor = var_id_prov;
UPDATE telefono_proveedor SET id_telefono = var_id_phone2
        WHERE id_telefono = old_id_phone2 AND id_proveedor = var_id_prov;

修正：

DELETE FROM telefono_proveedor WHERE id_proveedor = var_id_prov;
INSERT INTO telefono_proveedor (id_telefono, id_proveedor) VALUES (var_id_phone1, var_id_prov);
INSERT INTO telefono_proveedor (id_telefono, id_proveedor) VALUES (var_id_phone2, var_id_prov);

mysql update throw错误代码：1062。重复输入

2 个答案: