SQL USEAdventureWorks2022; GOCREATEFUNCTIONdbo.GetContactInformation (@BusinessEntityIDINT)RETURNS@retContactInformationTABLE( BusinessEntityIDINTNOTNULL, FirstNameNVARCHAR(50)NULL, LastNameNVARCHAR(50)NULL, ContactTypeNVARCHAR(50)NULL, PRIMARYKEYCLUSTERED (BusinessEntityIDASC) )AS-- Returns the first name...
Azure SQL 托管实例 适用于:Azure SQL 数据库 和 SQL Server(从 SQL Server 2017 (14.x) 开始) 本机编译的 T-SQL 模块支持 CASE 表达式。 下面的示例演示了在查询中使用 CASE 表达式的方法。 -- Query using a CASE expression in a natively compiled stored procedure...
1、在Sql Server数据库中创建存储过程 个人感觉挺有用，Mark一下。 CREATE PROC sp_Data2InsertSQL @...
1.casewhen用在取字段名上selectid,username (casewhenf.answererisnotnullthen1else0end)asisAnswer ffromuser2.根据区间进行选择值selectcasewhentypein(1,2)then1whentypein(3,4)then2whentypein(5,6,7,8)then3whentypein(9,10,11,12,13,14,15)then4whentypein(16,17,18)then5whentypein(19,20,...
Applies to: SQL ServerThis function converts each character in $arg to its upper case equivalent. The Microsoft Windows binary case conversion for Unicode code points specifies how characters are converted to upper case. This standard is different than the mapping for Unicode standard code point ...
在SQL Server中,可以使用IIF函数来替代CASE语句。IIF函数是一个内置的逻辑函数,用于根据条件返回不同的值。 IIF函数的语法如下: IIF(condition, value_if_true, value_if_false) 其中,condition是一个逻辑表达式,如果为真,则返回value_if_true;如果为假,则返回value_if_false。 使用IIF函数可以简化复杂的CASE语句...
Applies to: SQL Server The lower-case function converts each character in $arg to its lower case equivalent. The Microsoft Windows binary case conversion for Unicode code points specifies how characters are converted to lower case. This standard is not identical to the mapping for Unicode code ...
Transact-SQL-Referenz für den Ausdruck CASE Mit dem CASE-Ausdruck wird eine Liste von Bedingungen für die Rückgabe bestimmter Ergebnisse ausgewertet.
SELECTdate,SUM(caseresultwhen'win'then1else0end)ASwin,SUM(caseresultwhen'lose'then1else0end)ASloseFROMinfoGROUPBYdateORDERBYdate; 测试完了,删除测试表: DROPTABLEinfo; 参考资料: http://www.yiibai.com/mysql/case-function.html http://www.cnblogs.com/yazdao/archive/2009/12/09/1620482.html ...
Se nessun confrontoinput_expression=when_expressionrestituisce TRUE, il motore di database di SQL Server restituisceelse_result_expressionse è stata specificata una clausola ELSE. In caso contrario, restituisce un valore NULL. Espressione CASE avanzata: ...