This example also shows how you can assign a value in the DECLARE statement. The default accuracy is 100 nanoseconds. The TIME data type also allows you to define the accuracy. This indicates how many places to the right of the decimal are stored for the seconds portion. DECLARE@t0TIME(0)...
Let’s look into different categories of sql data types in detail. 让我们详细研究sql数据类型的不同类别。 (SQL Numeric Data Types) (SQL Date and Time Data Types) (SQL Character and String Data Types) Note that all the above data types are for character stream, they should not be used wi...
SQL Server 2008 introduces new date and time data types: · DATE – a date only type · TIME – a time only type · DATETIMEOFFSET – a time zone aware datetime type · DATETIME2 – a datetime type w/ larger fractional seconds and year range than the existing DATETIME type The new data...
"Parameter values of date/time types are converted as described inConversions from C to SQL. Note that parameters of typetimeanddatetimeoffsetmust haveValueTypespecified asSQL_C_DEFAULTorSQL_C_BINARYif their corresponding structures (SQL_SS_TIME2_STRUCTandSQL_SS_TIMESTAMPOFFSET_STRUCT) are used."...
CONVERT(data_type(length),expression,style) 下面的表格展示了datetime或smalldatetime转换为字符数据的style值: 实例: 下面的脚本使用CONVERT()函数来显示不同的格式。使用GETDATE()函数来获取当前的日期/时间 CONVERT(VARCHAR(19),GETDATE())CONVERT(VARCHAR(10),GETDATE(),10)CONVERT(VARCHAR(10),GETDATE(),110...
The Transact-SQLrowversiondata type is not a date or time data type. timestamp is a deprecated synonym for rowversion. Date and Time Functions The Transact-SQL date and time functions are listed in the following tables. For more information about determinism, seeDeterministic and Nondeterministic...
FunctionSyntaxReturn valueReturn data typeDeterminism SYSDATETIMESYSDATETIME ( )Returns adatetime2(7)value containing the date and time of the computer on which the instance of SQL Server runs. The returned value doesn't include the time zone offset.datetime2(7)Nondeterministic ...
Time SUBSTRING(CONVERT(nvarchar(4000), COLUMN, 126), 1+CHARINDEX(N'T', CONVERT(nvarchar(4000), COLUMN, 126)), 24) 其他 无其他转换 注意 SQL Server 返回的某些值可能与使用 xsd:type 指定的 XML 数据类型不兼容,这可能是由于无法转换(例如无法将 "XYZ" 转换为 decimal 数据类型),或是由于值超出了...
Supported String Literal Formats for time The following table shows the valid string literal formats for the time data type. Expand table SQL Server Description hh:mm[:ss][:fractional seconds][AM][PM] hh:mm[:ss][.fractional seconds][AM][PM] hhAM[PM] hh AM[PM] The hour value of 0...
⭐ TIME、TIME(p):由 小时:分钟:秒[.小数秒] 组成的 不带时区含义 的的时间的数据类型,精度高达纳秒,取值范围 [00:00:00.000000000到23:59:59.9999999]。其中 p 代表小数秒的位数,取值范围 [0, 9],如果不指定 p,默认为 0。 ⭐ TIMESTAMP、TIMESTAMP(p)、TIMESTAMP WITHOUT TIME ZONE、TIMESTAMP(p)...