select case statement in linq query. Here is the query on sql: selectcasewhenDATEDIFF(day,convert(varchar,Min([Order].CreatedOnUtc),101),convert(varchar,Max([Order].CreatedOnUtc),101)) = 0then Sum([Order].OrderSubtotal) else casewhen(DATEDIFF(day,convert(varchar,Min([Order].CreatedOnUtc),...
The SQLCASEstatement evaluates a list of conditions and adds a column with values based on the condition. For example, -- add a new column 'order_volume' in the Orders table-- and flag any order greater than 10000 as 'Large Order'-- and smaller than 10000 as 'Small Order'SELECT*,CASE...
SELECTCustomerName, City, CountryFROMCustomersORDERBY(CASEWHENCityISNULLTHENCountryELSECityEND); 以上例子等摘自:https://www.w3schools.com/sql/sql_case.asp 自己学习总结: 例子一: ATime=uld.ATime==null?DateTime.MinValue : uld.ATime 以上LINQ语句转换成SQL语句如下: CASEWHEN(uld.ATIMEISNULL)THENGETDA...
The case statement in SQL returns a value on a specified condition. We can use a Case statement in select queries along with Where, Order By, and Group By clause. It can be used in the Insert statement as well. In this article, we would explore the CASE statement and its various use...
将URL添加到SQL Case语句中,可以通过以下步骤实现: 首先,确保数据库中有一个包含URL的表,其中至少包含一个列用于存储URL。 在SQL Case语句中,使用URL作为条件进行判断。例如,可以使用URL的一部分或完整URL作为条件。 在Case语句的THEN子句中,可以执行与URL相关的操作,如插入、更新或删除数据。 下面是一个示例SQL ...
在SQL Server中,SELECT语句用于从数据库中检索数据。CASE语句是SELECT语句中的一种条件表达式,用于根据条件返回不同的结果。 CASE语句有两种形式:简单CASE表达式和搜索CA...
Simple Case Statement CASE [input_expression] WHEN when_expression THEN when_true_result_expression [...n] [ELSE else_result_expression] END Search Case Statement CASE WHEN Boolean_expression THEN when_true_result_expression [...n] [ELSE else_result_expression] END ...
SQL USEAdventureWorks2022; GOSELECTProductNumber,Category=CASEProductLineWHEN'R'THEN'Road'WHEN'M'THEN'Mountain'WHEN'T'THEN'Touring'WHEN'S'THEN'Other sale items'ELSE'Not for sale'END,NameFROMProduction.ProductORDERBYProductNumber; GO B. Use a SELECT statement with a searched CASE expression ...
Let’s illustrate with an example. The following SQL statement will return “Monday” if today is a Monday, otherwise it returns “Not a Monday”. SETDATEFIRST1-- first day of the week is a MondaySELECTCASEWHENDATEPART(WEEKDAY,GETDATE())=1THEN'Monday'ELSE'Not a Monday'END ...
SQL USEAdventureWorks2022; GOSELECTProductNumber,Category=CASEProductLineWHEN'R'THEN'Road'WHEN'M'THEN'Mountain'WHEN'T'THEN'Touring'WHEN'S'THEN'Other sale items'ELSE'Not for sale'END,NameFROMProduction.ProductORDERBYProductNumber; GO B. Use a SELECT statement with a searched CASE expression ...