时间类函数: DATE_FORMAT (datetime ,FormatCodes ):转换日期格式 EXTRACT(unit FROM date):提取日期的指定部分 DAY、week、year:提取date中的日、周、年等 CURRENT_X:CURRENT_DATE ( ) 当前日期;CURRENT_TIME ( ) 当前时间;CURRENT_TIMESTAMP ( ) ;当前时间戳;NOW ( ) //当前时间。 日期加减:DATEDIFF (d...
DATE_FORMAT (datetime ,FormatCodes ):转换日期格式 EXTRACT(unit FROM date):提取日期的指定部分 DAY、week、year:提取date中的日、周、年等 CURRENT_X 日期加减:DATEDIFF (date1 ,date2 ) 两个日期差; TIMEDIFF(datetime1,datetime2) : 两个日期时间型相减;DATE_ADD(date2 , INTERVAL d_value d_type )...
在转换为SQL_VARCHAR时,日期和时间被转换为相应的ODBC表示; 数字数据类型值转换为字符串表示。 从SQL_VARCHAR转换时,该值必须是有效的ODBCTime、Timestamp或Date表示。 当将时间值转换为SQL_TIMESTAMP或SQL_POSIXTIME时,未指定的日期默认为1841-01-01。 注意,对于CONVERT(),日期默认为1900-01-01。 将date值转换...
To convert all strings in theArriv_Datecolumn to the SQL Server date formatYYYY-MM-DD, you can again use theCASTfunction. You need to specify the column name followed by theASstatement and theDATEtype. For a more comprehensive understanding of the CAST function and its applications inconverti...
Two-digit year codesFour-digit year codesFormat 以下是日期和时间转换的特性: 取值范围:允许的日期范围为0001-01-01 ~ 9999-12-31。 默认值: 将时间值转换为TIMESTAMP、POSIXTIME、DATETIME或SMALLDATETIME时,日期默认为1900-01-01。 注意,对于{fn CONVERT()},日期默认为1841-01-01。
SQL CONVERT date function Typically, database professionals use the SQL CONVERT date function to get dates into a specified and consistent format. This applies the style codes for specific output dates. Syntax of CONVERT() function: CONVERT(datatype, datetime [,style]) ...
For a complete list of values for cultures, tale a look at this articlelanguage codes. More examples for the FORMAT function Query Sample output select FORMAT (getdate(), 'dd/MM/yyyy ') as date07/03/2012 select FORMAT (getdate(), 'dd/MM/yyyy, hh:mm:ss ') as date07/03/2012, 11...
22007 An invalid datetime format was detected; that is, an invalid string representation or value was specified. 22008 Datetime field overflow occurred; for example, an arithmetic operation on a date or timestamp has a result that is not within the valid range of dates. 2200L The XML value ...
/Va[lidate]:(可选)。 在验证阶段之后停止执行包,而无需实际运行包。 如果在验证期间使用/WarnAsError选项,则会导致dtexec将警告视为错误,因此使得包在验证期间出现警告时失败。 /VerifyB[uild]major[;minor[;build]]:(可选)。 根据验证阶段在major、minor和build参数中指定的内部版本号,验证包的内部版本号。
22007 An invalid datetime format was detected; that is, an invalid string representation or value was specified. 22008 Datetime field overflow occurred; for example, an arithmetic operation on a date or timestamp has a result that is not within the valid range of dates. 2200L The XML value ...