Group Blog Post 11/06/2008

• NetFlix Origami - Recycle Paper

  Tags: 折纸, netflix, funny

  • 
    • ddd - By Vincent Tsao
  • 

• bomomo

  Tags: funny, bomomo

• Use Your Google Account to Sign-In Elsewhere; But Not Vice-Versa

  Tags: Google, Account, openid

  • Google has launched an API that allows other websites to provide users with the option to login using their Google Account, in turn eliminating the need for a separate sign-up. The move comes as part of Google’s announcement earlier this year that they would become an identity provider for OpenID, along with Yahoo, Microsoft, and a number of other huge technology companies.

• MySQL里获取当前week、month、quarter的start_date/end_date - hideto - JavaEye技术网站

  Tags: mysql, Tips

  • 当前week的第一天：
    
    select date_sub(curdate(),INTERVAL WEEKDAY(curdate()) + 1 DAY)
    
    
    
    当前week的最后一天：
    
    select date_sub(curdate(),INTERVAL WEEKDAY(curdate()) - 5 DAY)
    
    
    
    前一week的第一天：
    
    select date_sub(curdate(),INTERVAL WEEKDAY(curdate()) + 8 DAY)
    
    
    
    前一week的最后一天：
    
    select date_sub(curdate(),INTERVAL WEEKDAY(curdate()) + 2 DAY)
    
    
    
    前两week的第一天：
    
    select date_sub(curdate(),INTERVAL WEEKDAY(curdate()) + 15 DAY)
    
    
    
    前两week的最后一天：
    
    select date_sub(curdate(),INTERVAL WEEKDAY(curdate()) + 9 DAY)
  • 当前month的第一天：
    
    SELECT concat(date_format(LAST_DAY(now()),'%Y-%m-'),'01')
    
    
    
    当前month的最后一天：
    
    SELECT LAST_DAY(now())
    
    
    
    前一month的第一天：
    
    SELECT concat(date_format(LAST_DAY(now() - interval 1 month),'%Y-%m-'),'01')
    
    
    
    前一month的最后一天：
    
    SELECT LAST_DAY(now() - interval 1 month)
    
    
    
    前两month的第一天：
    
    SELECT concat(date_format(LAST_DAY(now() - interval 2 month),'%Y-%m-'),'01')
    
    
    
    前两month的最后一天：
    
    SELECT LAST_DAY(now() - interval 2 month)
    
    
  • 当前quarter的第一天：
    
    select concat(date_format(LAST_DAY(MAKEDATE(EXTRACT(YEAR FROM CURDATE()),1) + interval QUARTER(CURDATE())*3-3 month),'%Y-%m-'),'01')
    
    
    
    当前quarter的最后一天：
    
    select LAST_DAY(MAKEDATE(EXTRACT(YEAR FROM CURDATE()),1) + interval QUARTER(CURDATE())*3-1 month)
    
    
    
    前一quarter的第一天：
    
    select concat(date_format(LAST_DAY(MAKEDATE(EXTRACT(YEAR FROM CURDATE()),1) + interval QUARTER(CURDATE())*3-6 month),'%Y-%m-'),'01')
    
    
    
    前一quarter的最后一天：
    
    select LAST_DAY(MAKEDATE(EXTRACT(YEAR FROM CURDATE()),1) + interval QUARTER(CURDATE())*3-4 month)
    
    
    
    前两quarter的第一天：
    
    select concat(date_format(LAST_DAY(MAKEDATE(EXTRACT(YEAR FROM CURDATE()),1) + interval QUARTER(CURDATE())*3-9 month),'%Y-%m-'),'01')
    
    
    
    前两quarter的最后一天：
    
    select LAST_DAY(MAKEDATE(EXTRACT(YEAR FROM CURDATE()),1) + interval QUARTER(CURDATE())*3-7 month)

• Rails on the Run - Google Chart Gem

  Tags: rails, gem, Google, Chart, plugin

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