syntaxsql 複製 STATS_DATE ( object_id , stats_id ) 引數object_id 包含統計資料之資料表或索引檢視表的識別碼。stats_id 統計資料物件的識別碼。傳回型別成功時傳回 datetime。 若未建立統計資料 Blob,則傳回NULL。備註系統函數可以用於選取清單、WHERE 子句以及任何可以使用運算式的位置。統計資料更新日期...
Syntaxsyntaxsql Copy -- Syntax for SQL Server and Azure SQL Database [ WITH <common_table_expression> [...n] ] UPDATE [ TOP ( expression ) [ PERCENT ] ] { { table_alias | | rowset_function_limited [ WITH ( <Table_Hint_Limited> [ ...n ] ) ] } | @table_variable } SET ...
In T-SQL in SQL Server, between is a closed interval, which means it includes both ends of the range. This is great for whole numbers, so something where both goal posts are meant to be included. So if we have a police officer that is capturing speeds of people that are driving down...
Defines a date in SQL Server. The date data type was introduced in SQL Server 2008 (10.0.x). date description Expand table PropertyValue Syntax DATE Usage DECLARE @MyDate DATECREATE TABLE Table1 (Column1 DATE) Default string literal format(used for down-level client) yyyy-MM-ddFor more ...
searching between two date values in SQL, including using the BETWEEN operator, the greater than (>) and less than (<) operators, and the DATEPART() function. It also provides some tips for efficiently searching between dates on partitioned and sharded tables, which can help improve ...
syntaxsql Copy --Back up a whole database BACKUP DATABASE { database_name | @database_name_var } TO <backup_device> [ ,...n ] [ <MIRROR TO clause> ] [ next-mirror-to ] [ WITH { DIFFERENTIAL | <general_WITH_options> [ ,...n ] } ] [;] --Back up specific files or fi...
SQL Server 2016 (13.x) introduced theAT TIME ZONEsyntax to facilitate daylight savings-aware, universal time zone conversions. This syntax is especially useful when converting data without time zone offsets, to data with time zone offsets. To convert to a correspondingdatetimeoffsetvalue in a tar...
syntaxsql Kopéieren DATEDIFF ( datepart , startdate , enddate ) Notiz To view Transact-SQL syntax for SQL Server 2014 (12.x) and earlier versions, see Previous versions documentation.Argumentsdatepart The units in which DATEDIFF reports the difference between the startdate and enddate. ...
When querying for dates in SQL Server, take into account the time as well as the date. For example: DateOrdered Between 1/1/19 and 1/31/19 may not include all orders. DateOrdered Between 1/1/19 00:00:00 AM And 1/31/19 11:59:59 PM does include all orders. ...
All system date and time values are derived from the operating system of the computer on which the instance of SQL Server is running. Higher-Precision System Date and Time Functions SQL Server 2008 obtains the date and time values by using theGetSystemTimeAsFileTime()Windows API. The accuracy...