8、date('时间') 返回时间的日期
In this section, you can find information about the date and time scalar functions that Amazon Redshift supports. Topics Summary of date and time functions Date and time functions in transactions Deprecated leader node-only functions + (Concatenation) operator ADD_MONTHS function AT TIME ZONE functi...
DATE("Day of Created At",'+1 months','+2 days') Built-in date and time functions Custom formulas have built-in functions that you can also use to modify dates and times. Some of those include: DATEADD(date_string, amount, 'unit') Adds a time interval to a date or datetme DATESUB...
One of my other InformIT.com articles covered the functions DATEPART and DATENAME in detail. DATEPART retrieves a portion of the date and time value (month, day, weekday, year, hour, minute, and so on) as an integer; DATENAME returns the character (for weekdays) or integer (for everyth...
The following built-in functions relate to dates and time. Topics Time Zones Datetime Conversion Functions Date, Timestamp, and Interval Operators Date and Time Patterns CURRENT_DATE CURRENT_ROW_TIMESTAMP CURRENT_TIME CURRENT_TIMESTAMP EXTRACT LOCALTIME LOCALTIMESTAMP TSDIFF Of these, the SQL e...
This section describes the functions that can be used to manipulate temporal values. See Section 13.2, “Date and Time Data Types”, for a description of the range of values each date and time type has and the valid formats in which values may be specified. Table...
Functionarguments/functions GetDate()returnsthecurrentdateandtimeofthesystem DateDiff(interval,date1,date2)returnsthedifference betweenthetwodatesofdate2anddate1inthemannerspecified byinterval Date2-date1 DateAdd(interval,number,date)addsthedateafternumberin ...
The following sections in this topic provide an overview of all Transact-SQL date and time data types and functions. For information and examples that are common to date and time data types and functions, see Using Date and Time Data. Date and Time Data Types Date and Time Functions ...
SQL Date & Time 1. 定义 慕课解释:Date和Time数据类型分别用于存储日期和时间格式类数据。 2. 前言 本小节中,我们将学习 SQL 种常见的日期和时间数据类型。 在很多真实业务中,我们需要存储一些日期时间数据,比如:用户生日,新闻联播播出时间等等;若是采用字符串存储,在操作的时候会颇为麻烦,为了方便用户,SQL 给...
See Section 11.2, “Date and Time Data Types”, for a description of the range of values each date and time type has and the valid formats in which values may be specified. Table 12.11 Date and Time Functions NameDescription ADDDATE() Add time values (intervals) to a date value ...