interval 1 day

1.0 Formatting: The Date_format () function is used to display date/time data in different formats.GrammarDate_format (Date,format) The date parameter is a valid day. format Specifies the date/time in which the output is formatted.The formats you

Let's look at an example:Select Now (), now () +0;You can see that the now () function can return a time or return a number to see how you use it. If you increase or decrease relative to the current time, you cannot add or subtract a number directly

Transfer from http://blog.sina.com.cn/s/blog_6d39dc6f0100m7eo.html1.1 Get the current date + time (date + times) function: Now ()In addition to the now () function to get the current datetime, MySQL has the following function:Current_timestamp ()

MySQL Date time function encyclopediaDAYOFWEEK (date)The return date is the day of the week (1= Sunday, 2 = Monday,...... 7= Saturday, ODBC Standard)Mysql> Select DAYOFWEEK (' 1998-02-03 ');3WEEKDAY (date)The return date is the day of the week (0=

The MySQL time plus function defines and uses the Date_add (), Date_sub () () function to add a specified time interval to a date. The Date_sub () function reduces the specified time interval to a date. The syntax Date_add (date,interval expr type)

Citation@author: http://www.cnblogs.com/geaozhang/Possible requirements:What is the current time, the next month's today is the day of the week, statistics up to the current date 3 days before the sum of income ...These requirements need to be

#当月每天负毛利订单明细SELECTc.id,a.city,a.username,a. Order date, A. Order number, A. Sales confirmation, a. Cost amount, a. Gross profit of 1, Case whenA. Gross Profit 10 Then"negative margin" whenA. Gross Profit 1=0 Then"negative margin" whenA. Gross

This content is transferred from a Sina blog article later I will optimize the content Http://blog.sina.com.cn/s/blog_6d39dc6f0100m7eo.html In addition to the now () function to get the current datetime, MySQL has the following function:

Date and Time functionsPossible requirements:What is the current time, the next month's today is the day of the week, statistics up to the current date 3 days before the sum of income ...These requirements need to be implemented using date and time

Date conversion in MySQLURL:? Http://www.eygle.com/digest/2006/09/mysql_date_convert.htmlSee 7.3.6 date and time types for a description of the range of values that each type has and the valid format for the specified date and time value.Here is an

The Order table structure is specific to each order under multiple products, while the warehouse shipping table structure is the sum of the amounts for each order is not differentiated by the order productSo if you want to calculate the sales of

View the last MySQL modification time for a tableSELECT table_name,update_time from Information_schema.tables where table_schema= ' database_name ';By viewing the last updated time of the table in the database.MySQL Date time function encyclopedia

MySQL date arithmetic, date function DAYOFWEEK (date)Returns the day of the Week index (1= Sunday, 2 = Monday, ... 7= Saturday). These index values correspond to the ODBC standard.Mysql> Select DAYOFWEEK (' 1998-02-03 ');3WEEKDAY

Reference: http://blog.sina.com.cn/s/blog_6d39dc6f0100m7eo.htmlLocaltimestamp () LocaltimestampThese date-time functions are equivalent to now (). Since the now () function is short and easy to remember, it is recommended that you always use now ()

See 7.3.6 date and time types for a description of the range of values that each type has and the valid format for the specified date and time value.Here is an example of using a date function. The following query selects all records whose Date_col

-Take the first day of the seasonSelect Date_trunc (' Quarter ', cast (' 20150820 ' as date))--Take the day of the quarterSelect Add_months (Date_trunc (' Quarter ', cast (' 20150820 ' as date) + INTERVAL '-1 day ', 3)--Take the day of the

The date_add and date_sub functions can be added and reduced using the time interval identified by the interval keyword, similar to the Strtotime function in PHP.1. Update the validity period of the Table Valid_time field value is increased by one

Mysql reads data from today, tomorrow, workday, weekend, this week, next week, and next month if ($ date !) {Switch ($ date) {date_add plus date_sub minus case today: $ where. ANDFROM_UNIXTIME (starttimefrom, % Y-% m-% d) curdate (); break; case

MySQLevent implements regular table creation Note: Create a table named DELIMITERCREATEPROCEDUREtest. create_tab_every_day () BEGIN every morning MySQL event to implement regular table creation Note: CREATE a table named DELIMITER on the next day

This article mainly describes the comparison between common DB2 functions and Oracle functions, including descriptions of type conversion functions, time and date, string functions, and mathematical functions, the following is a description of the