SQL USEAdventureWorks2022; GOCREATEFUNCTIONdbo.GetContactInformation (@BusinessEntityIDINT)RETURNS@retContactInformationTABLE( BusinessEntityIDINTNOTNULL, FirstNameNVARCHAR(50)NULL, LastNameNVARCHAR(50)NULL, Co
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,...
or a customer. The function returns the first and last name of a givenBusinessEntityIDand the contact type for that person. TheCASEexpression in the SET statement determines the value to display for the columnContactTypebased on the existence of theBusinessEntityIDcolumn in theEmployee,Vendor, ...
Applies to: SQL ServerThe 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 ...
Applies to: SQL Server Azure SQL Database Azure SQL Managed Instance Applies to: Azure SQL Database and SQL Server starting SQL Server 2017 (14.x) CASE expressions are supported in natively compiled T-SQL modules. The following example demonstrates a way to use...
SQL USEAdventureWorks; GOCREATEFUNCTIONdbo.GetContactInformation(@ContactIDint)RETURNS@retContactInformationTABLE( ContactIDintNOTNULL, FirstNamenvarchar(50)NULL, LastNamenvarchar(50)NULL, ContactTypenvarchar(50)NULL, PRIMARYKEYCLUSTERED (ContactIDASC) )AS-- Returns the first name, last name and contac...
SQL Server unter Linux SQL in Azure Azure Arc Ressourcen Verweis Azure Data CLI (azcli) Datenbankbeispiele Fehler und Ereignisse Ereignisklassen Native Schnittstellen Systemkatalogansichten Systemkompatibilitätsansichten Dynamische Ansichten zur Systemverwaltung ...
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: ...
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 ...