Mysql的加盟條件在同一服務器中連接兩個數據庫

select first_name, last_name, amount, payment_date 
from customer_db.customer_data c 
join employee_db.payment e 
on c.customer_id= e.payment_id 
where customer_db.customer_data(customer_id)='6';

我越來越Mysql的加盟條件在同一服務器中連接兩個數據庫

12:05:54 select first_name, last_name, amount, payment_date from customer_db.customer_data c join employee_db.payment e on c.customer_id= e.payment_id where customer_db.customer_data(customer_id)='6' LIMIT 0, 1000 
Error Code: 1305. FUNCTION customer_db.customer_data does not exist 0.000 sec

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2015-12-03 Ujjwal Chowdary

你要調用一個函數：

where customer_db.customer_data(customer_id)='6'; 
           ^-----------^

也許你的意思是

where customer_db.customer_data.customer_id='6'; 
           ^---

取而代之？

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2015-12-03 18:13:44

如果我這樣做，那麼我得到這個錯誤12:14:28 \t從customer_db.customer_data中選擇first_name，last_name，amount，payment_date c在c.customer_id = e.payment_id中加入employee_db.payment e，其中customer_db.customer_data .customer_id ='6'限制0,1000 \t錯誤代碼：1054.'where子句'中的未知列'customer_db.customer_data.customer_id'\t 0.000秒 –

Customer_data是customer_db中的表，我指的是customer_id列。 –

然後'c.customer_id'，而不是，因爲你別名表 –

您在查詢中使用別名表，所以你必須替換此：

customer_db.customer_data.customer_id

隨着

c.customer_id

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2015-12-03 18:21:20

我試過，但我得到這個錯誤13:16:11 \t從customer_db.customer_data選擇first_name，last_name，amount，payment_date c加入employee_db.payment e on c .customer_id = e.payment_id其中c.customer_id ='6'限制0,1000 \t錯誤代碼：1054.'where子句'中的未知列'c.customer_id'\t 0.000秒 –

select customer_db.customer_data.first_name, customer_db.customer_data.last_name, employee_db.payment.amount, employee_db.payment.payment_date 
from customer_db.customer_data 
inner join employee_db.payment 
on customer_db.customer_data.customer_data_id = employee_db.payment.payment_id 
where customer_db.customer_data.customer_data_id ='6';

我終於找到了解決辦法。 Thannks

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2015-12-03 20:54:07

Mysql的加盟條件在同一服務器中連接兩個數據庫

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