将日期时间类型转换为字符串：SELECT DATE_FORMAT(datetime_column, '%Y-%m-%d %H:%i:%s') AS datet...
select to_char( to_date(222,'J'),'Jsp') from dual 显示Two Hundred Twenty-Two 3. 求某天是星期几 select to_char(to_date('2002-08-26','yyyy-mm-dd'),'day') from dual; 星期一 select to_char(to_date('2002-08-26','yyyy-mm-dd'),'day','NLS_DATE_LANGUAGE = American') from d...
WHEN to_number(to_char(SYSDATE,'hh24')) BETWEEN 6 AND 11 THEN '上午' WHEN to_number(to_char(SYSDATE,'hh24')) BETWEEN 11 AND 17 THEN '下午' WHEN to_number(to_char(SYSDATE,'hh24')) BETWEEN 17 AND 21 THEN '晚上' END FROM dual; === Oracle 中的一些处理日期 将数字转换为任意时间...
DATETIME – in YYYY-MM-DD HH: MI: SS format in SQL Datetime Format In SQL SQL Date and Time Data Types The Date format types are in the table below: Data type Accuracy Storage size (bytes) User-defined fractional second precision Time zone offset time 100 nanoseconds 3 to 5 yes no da...
DECLARE @counter INT =0DECLARE @date DATETIME='2006-12-30 00:38:54.840'CREATE TABLE #dateFormats (dateFormatOptionint, dateOutput nvarchar(40)) WHILE (@counter<=150) BEGIN BEGIN TRY INSERT INTO #dateFormats SELECT CONVERT(nvarchar, @counter), CONVERT(nvarchar,@date, @counter) ...
In SQL Server FORMAT function converts a datetime value to string using the specified format. In MySQL you can use DATE_FORMAT function. Note that the FORMAT and DATE_FORMAT format strings are different. SQL Server: -- Convert the current date and time to string (year-month-day) ...
以下示例都返回数字45,因为它是datetime字符串中时间表达式的第45分钟: 代码语言:javascript 代码运行次数:0 运行 AI代码解释 SELECT{fnMINUTE('2018-02-16 18:45:38')}ASODBCMinutes45 代码语言:javascript 代码运行次数:0 运行 AI代码解释 SELECT{fnMINUTE(67538)}ASHorologMinutes45 ...
When the conversion is fromsmalldatetime, the hours and minutes are copied. The seconds and fractional seconds are set to0. The following code shows the results of converting aSMALLDATETIMEvalue to aDATETIMEvalue. SQL DECLARE@smalldatetime SMALLDATETIME ='12-01-16 12:32';DECLARE@datetime DATETIME ...
database,Ihavesuchatimeformat"2007-5-2214:32:12"when weareinthequerywhether2007-5-22anditsresultisequal. Notequal. Weallliketofindotherwaystosolvethisproblem.ButIfound thatourmethodsweren'tverygood,becausewesometimeshad SQLSever Youdon'tknowenoughaboutthesentencefeatures.SoIchecked ...
DAY_SECOND 天, 小时, 分钟, 秒 "DAYS HOURS:MINUTES:SECONDS" MySQL在expr格式中允许任何标点分隔符。表示显示的是建议的分隔符。如果date参数是一个DATE值并且你的计算仅仅 包含YEAR、MONTH和DAY部分(即,没有时间部分),结果是一个DATE值。否则结果是一个DATETIME值。