我刚刚在Windows 10上安装了Bash,安装了libmysqlclient-dev软件包,并运行了一个rake任务,该任务执行下面的查询以使用ActiveRecord :: Base.connection在mysql数据库上创建一个VIEW .execute创建VIEW的Mysql2语法错误
DROP TABLE IF EXISTS debtors_customer_balances;
CREATE OR REPLACE VIEW debtors_customer_balances AS
SELECT
customer_id,
SUM(amount_cents) AS total_cents,
SUM(CASE
WHEN due_on >= CURDATE()
THEN amount_cents
ELSE 0
END) AS current_cents,
SUM(CASE
WHEN due_on >= (CURDATE() - INTERVAL 7 DAY)
AND due_on < CURDATE()
THEN amount_cents
ELSE 0
END) AS overdue7_cents,
SUM(CASE
WHEN due_on >= (CURDATE() - INTERVAL 14 DAY)
AND due_on < (CURDATE() - INTERVAL 7 DAY)
THEN amount_cents
ELSE 0
END) AS overdue14_cents,
SUM(CASE
WHEN due_on >= (CURDATE() - INTERVAL 30 DAY)
AND due_on < (CURDATE() - INTERVAL 14 DAY)
THEN amount_cents
ELSE 0
END) AS overdue30_cents,
SUM(CASE
WHEN due_on < (CURDATE() - INTERVAL 30 DAY)
THEN amount_cents
ELSE 0
END) AS overdue30_plus_cents
FROM
debtors_balances
GROUP BY
customer_id;
然而,它抛出一个错误
Mysql2::Error: 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 'CREATE OR REPLACE VIEW debtors_customer_balances AS SELECT ' at line 2: DROP TABLE IF EXISTS debtors_customer_balances; CREATE OR REPLACE VIEW debtors_customer_balances AS SELECT customer_id, etc...
我想不出什么导致这个作为查询运行在Mac罚款,它只是在bash窗户我似乎得到这个语法错误。
我使用的宝石mysql2(0.3.18)
修复了查询以便它可以运行,但不幸的是,DROP TABLE行存在的原因是因为在db:seed的末尾调用了此查询,并且出于某种原因,VIEWS作为TABLES添加到模式,因此当db:schema:load作为种子(db:reset)的一部分运行时,它会将这些视图创建为表,并在它到达此查询时发生错误。 –
通过使用ActiveRecord :: SchemaDumper.ignore_tables = ['debtors_customer_balances','debtors_customer_entity_balances']修复了在架构中将VIEWS添加为架构中的问题。 –