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SELECT * FROM table WHERE convert (Nvarchar, DateAndTime, 111) = CONVERT (Nvarchar, GETDATE (), 111) ORDER by DateAndTime DESCRecord of the Month
SELECT * FROM table WHERE DateDiff (Month,[dateadd],getdate ()) =0
Week
onTo say there is an article table article, the time to store an article's added article is the Add_time field, which is an int (5) type, you now need to query the total number of articles added today and sort by time from large to small, then the
DateDiff (Week,zy_time,getdate ()) =0//query this weekDateDiff (Month,zy_time,getdate ()) =0//enquire this monthThis season: SELECT * from table where DATEDIFF (Qq,c_calltime,getdate ()) =0First half year 1-6, after half year 7-12:select * from
Mysql query today, yesterday, last 7 days, last 30 days, this month, the data method of the last month said there is an article table article, storing the time for adding an article to the article is the add_time field, this field is of the int (5)
I don't know if there's anything to clean up. A directory history file needs to be cleaned. There will probably be a lot of other places to clean up the history files, which may be used.
I spent the past two days writing a script, cleaning more
The Mythical Man-Month is a milestone in The software industry. The author, Brooks, was a former IBM System/360 Project Manager, known as "father of S/360 ". In the book, he discusses in detail all aspects of the entire process of software projects,
This method is used to count the number of new users per day in a month.
Now there is a requirement: the Administrator selects a month and displays the number of new users per day for this month.
First, obtain the date selected by the Administrator,
Mysql groups the field time by day, month, or year.
Assume that the table has a time field in Unix timestamp format. You need to calculate the number of records per day based on this field.
Method:
Use the convert function convert (char (10), time, 1
I used to query the database today or yesterday, for the last seven days, for the last 30 days, and for the last month, the data was directly determined through php. This is an additional step, next I will introduce an article that uses SQL
CONVERT (varchar (10), field name, conversion format)CONVERT (nvarchar), count_time,121Convert is a date conversion function, typically in the time type (Datetime,smalldatetime) and the string type (Nchar,nvarchar,char,varchar)The 3 parameters of
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