mssqlserver:basic

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--- mssqlserver:basic [2020/08/24 17:10]
kwon37xi [String to DATETIME]
+++ mssqlserver:basic [2020/08/24 17:16] (현재)
kwon37xi [String to DATETIME]
@@ 줄 129: / 줄 129: @@
   * [[https://docs.microsoft.com/ko-kr/sql/t-sql/functions/cast-and-convert-transact-sql?view=sql-server-ver15|CAST 및 CONVERT]]
   * 그렇지 못한 custom type 은 문자열을 모두 쪼개서 [[https://docs.microsoft.com/en-us/sql/t-sql/functions/datetimefromparts-transact-sql?view=sql-server-ver15|DATETIMEFROMPARTS]]/[[https://docs.microsoft.com/en-us/sql/t-sql/functions/datetime2fromparts-transact-sql?view=sql-server-ver15|DATETIME2FROMPARTS]]를 사용한다.
-  * [[https://rextester.com/edit/JBDH48508|년월일시분초를 DATETIME 형식으로 변환, Sql Server - rextester]]
+  * [[https://rextester.com/LTBUB91960|임의의 문자열을 DATETIME, DATETIME2 로 변경하기, Sql Server - rextester]]
 <code sh>
 -- 2019-09-20 18:51:47
 DECLARE @d NVARCHAR(14)='20170920185147';
-SELECT DATETIMEFROMPARTS (LEFT(@d, 4),  SUBSTRING(@d, 5,2), SUBSTRING(@d,7 ,2), SUBSTRING(@d, 9, 2) , SUBSTRING(@d, 11, 2), RIGHT(@d, 2), 0);
+SELECT
+   DATETIMEFROMPARTS (LEFT(@d, 4),  SUBSTRING(@d, 5,2), SUBSTRING(@d,7 ,2), SUBSTRING(@d, 9, 2) , SUBSTRING(@d, 11, 2), RIGHT(@d, 2), 0) as "with_var",
+   DATETIMEFROMPARTS (LEFT('20170920185147', 4),  SUBSTRING('20170920185147', 5,2), SUBSTRING('20170920185147',7 ,2), SUBSTRING('20170920185147', 9, 2) , SUBSTRING('20170920185147', 11, 2), RIGHT('20170920185147', 2), 0) as "with_literal",
+   DATETIME2FROMPARTS (LEFT('20170920185147', 4),  SUBSTRING('20170920185147', 5,2), SUBSTRING('20170920185147',7 ,2), SUBSTRING('20170920185147', 9, 2) , SUBSTRING('20170920185147', 11, 2), RIGHT('20170920185147', 2), 0, 0) as "dt2"
+;
 </code>

mssqlserver/basic.1598256609.txt.gz · 마지막으로 수정됨: 2020/08/24 17:10 저자 kwon37xi