函DATETRUNC式會傳回截斷至指定 datepart 的輸入日期。語法syntaxsql 複製 DATETRUNC ( datepart , date ) 引數datepart指定截斷的有效位數。 下列資料表列出 DATETRUNC 的所有有效 datepart 值(假設這也是輸入日期類型的有效部分)。展開表格 datepart縮寫截斷注意事項 year yy, yyy
Syntax trunc(string date, string format) Parameters Table 1 Parameters Parameter Mandatory Description date Yes DATE or STRING Date that needs to be processed The following formats are supported: yyyy-mm-dd yyyy-mm-dd hh:mi:ss yyyy-mm-dd hh:mi:ss.ff3 format Yes STRING Format of the dat...
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syntaxsqlCopie DATETRUNC( datepart, date ) Arguments datepart Spécifie la précision de la troncation. Cette table répertorie toutes les valeurs dedatepartvalides pourDATETRUNC, étant donné qu’il s’agit également d’une partie valide du type de date entrée. ...
SELECT date_trunc('day', date_trunc('year',CURRENT_DATE)+ '-1'); date_trunc --- 2022-12-31 00:00:00+00 (1 row) -- Obtain the first day of this year. SELECT date_trunc('year',CURRENT_DATE); date_trunc --- 2023-01-01 00:00:00+00 (1 row) -- Obtain the first day ...
E Oracle SQL Reserved Words and Keywords F Extended Examples Index Syntax trunc_date::= Description of the illustration trunc_date.eps Purpose TheTRUNC(date) function returnsdatewith the time portion of the day truncated to the unit specified by the format modelfmt. This function is not sensitiv...
Syntax date_trunc(unit, x) Parameters Parameter Description unit The unit of time. Valid values: millisecond, second, minute, hour, day, week, month, quarter, and year. For more information, see Units. x The value of this parameter is a datetime expression. Note The date_trunc functio...
The OracleTRUNC()function returns aDATEvalue truncated to a specific component (e.g., day, month, year), and zeroing out smaller components like times or later date parts. Here’s the syntax of the OracleTRUNC()function: TRUNC(date, format)Code language:SQL (Structured Query Language)(sql)...
DATE_TRUNC周日开始为SQLpresto(雅典娜) 、、、 我使用的是AWS雅典娜,据我所知,这是一个快速引擎。 我有一个变量'created_at‘,它是一个时间戳。如何才能让DATE_TRUNC('week', created_at)在周日而不是周一开始?基本上,我希望从周日开始到周六结束的一周内统计销售额,我将按week分组 GROUP BYDATE_TRUNC('...
SQL Language Reference Syntax trunc_date::= Description of the illustration trunc_date.eps Purpose TheTRUNC(date) function returnsdatewith the time portion of the day truncated to the unit specified by the format modelfmt. This function is not sensitive to theNLS_CALENDARsession parameter. It ope...