date and time right now

Date and Time functionsThis chapter discusses some functions that can be used to manipulate time values. See section 11.3, "Date and Time type" for valid formats for each time and date type with a range and a specified value. The following example

Turn from:http://blog.chinaunix.net/space.php?uid=11327712&do=blog&id=32416MySQL Date Type: Date format, occupied storage space, date range comparison.Date type storage space date format date range-----------------------------------------------------

This is a feature that needs to be implemented today when developing systems According to the selected date, the query related content, but not according to the whole date to filter, but based on, year, month, Day split form to filter, such as 201

Mysql> SELECT something from Tbl_name WHERE To_days (now ()) –to_days (date_col) DayOfWeek (date) Returns the week index of date (1 = Sunday, 2 = Monday, ...). 7 = Saturday). Index values are compliant with ODBC standards. mysql> SELECT DayOfWeek ('

The following query selects the records for all date_col values within the last 30 days. Mysql> SELECT something from Tbl_name WHERE To_days (now ())-To_days (Date_col) DayOfWeek (date) Returns the week index of date (1 = Sunday, 2 = Monday, ...). 7

Here is an example of using the date function. The following query Selects all records whose date_col values are within the last 30 days. Here is an example of using the date function. The following query Selects all records whose date_col values

Here is an example of using a date function. The following query selects records for all Date_col values within the last 30 days.Mysql> SELECT something from Tbl_nameWHERE To_days (now ()) –to_days (date_col) DAYOFWEEK (date)Returns the week index

When I used to solve this problem with ASP is quite simple, the ASP has the corresponding function DateDiff can give two days period interval How many months, how many days and how many seconds. When I searched through the PHP manual I found that

The following query Selects all records whose date_col values are within the last 30 days. Mysql> SELECT something FROM tbl_nameWHERE TO_DAYS (NOW ()-TO_DAYS (date_col) DAYOFWEEK (date)Returns the week index of date (1 = Sunday, 2 = Monday,... 7 =

Text Functions are functions that can process text strings in formulas. For example, you can change the case sensitivity or determine the length of a text string; you can replace or remove some characters. The date and time functions can analyze and