sql server get hour from datetime

CONVERT (Data_type,expression[,style])CONVERT (varchar (10), field name, conversion format)DescriptionThis style is typically in the time type (Datetime,smalldatetime) and the string type (Nchar,nvarchar,char,varchar)It is only used when converting

List of directories in this document:1, what is the granularity of time?2. The granularity of time provided by SQL Server3. SQL Server time granularity code demo4. SQL Server Base Date5. Summary language6. List of reference listsWhat is the

Reproduced in this blog, the original blog: http://blog.csdn.net/baiduandxunlei/article/details/9180075CONVERT (Data_type,expression[,style])CONVERT (varchar (10), field name, conversion format)DescriptionThis style is typically in the time type

mysql|server| Data | Database for job needs, the data stored in the SQL Server database into the MySQL database, collect relevant information on the Internet, find two ways, now talk about their views. The first is the installation of MySQL ODBC,

mysql|server| Data | database | Original due to the work needs, to be stored in the SQL Server database all the data into the MySQL database, collect relevant information on the Internet, find two ways, now talk about their views respectively. The

Common date functions SQL Server time and date function detailed, SQL Server, time, date, 1. Current system date, time Select GETDATE () 2. DateAdd returns a new datetime value on the basis of adding a period of time to the specified date For

First of all, I am just a programmer, not a professional DBA, the following article is written from a problem solving process, rather than the beginning to give you a correct result, if there is something wrong in the text, please correct the

Example: DateDiff (Dd,add_time,getdate ()) not between 0 and 7Select COUNT (*) fromtable where DATEDIFF ([second], ' 2004-09-18 00:00:18 ', ' 2004-09-18 00:00:19 ') > 0DescriptionSelect DATEDIFF (Day, time1, time2) corresponds to the following

------------------date is converted into a month and a day and seconds---------------Select ' R ' +convert (varchar), GETDATE (), 112)+right (CAST (Power (10,2) as varchar) +datepart (hour, GETDATE ()), 2)+right (CAST (Power (10,2) as varchar)

Ø Basic Common Query --select SELECT * from student; --all Query All Select all sex from student; --DISTINCT Filter Repeat Select distinct sex from student; --count Statistics Select COUNT (*) from student; Select count (Sex) from student; Select