有什麼毛病我MySQL查詢

Question

SELECT WEEK(STR_TO_DATE(products_options_values, '%m-%d-%Y'),1) as order_week, 
     YEAR(STR_TO_DATE(products_options_values, '%m-%d-%Y'),1) as order_year 
FROM orders_products_attributes 

如果這僅僅是一週，我沒有得到任何錯誤，但只要我儘量選擇一年爲好，它會拋出

1064 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 '1) as order_year FROM orders_products_attributes'... 

什麼時我做錯了？

Answer 1

更換

YEAR(STR_TO_DATE(products_options_values, '%m-%d-%Y'),1) 

與

YEAR(STR_TO_DATE(products_options_values, '%m-%d-%Y')) 

沒有爲YEAR()功能上沒有第二個參數。或者你可以只是做

STR_TO_DATE(products_options_values, '%Y') 

Answer 2

使用此SQL

SELECT WEEK(STR_TO_DATE(products_options_values, '%m-%d-%Y'),1) as order_week, 
     YEAR(STR_TO_DATE(products_options_values, '%m-%d-%Y')) as order_year 
FROM orders_products_attributes 

進一步閱讀YEAR()方法 http://dev.mysql.com/doc/refman/5.5/en/date-and-time-functions.html http://dev.mysql.com/doc/refman/5.5/en/date-and-time-functions.html#function_year

Answer 3

使用不當。第二參加者不應該在那裏。 試試這個：

SELECT WEEK(STR_TO_DATE(products_options_values, '%m-%d-%Y'),1) 
as order_week, 
YEAR(STR_TO_DATE(products_options_values, '%m-%d-%Y')) as order_year 
FROM orders_products_attributes