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...
Transact-SQL SELECT BusinessEntityID, LastName, TerritoryName, CountryRegionName FROM Sales.vSalesPerson WHERE TerritoryName IS NOT NULL ORDER BY CASE CountryRegionName WHEN 'United States' THEN TerritoryName ELSE CountryRegionName END; E. Using CASE in an UPDATE statement ...
Creates a new CaseExpression which represent a CASE statement in a SQL tree. C# 複製 public virtual Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression Case (System.Collections.Generic.IReadOnlyList<Microsoft.EntityFrameworkCore.Query.SqlExpressions.CaseWhenClause> whenClauses, Microsoft.Ent...
In the T-SQL scripting language, you can use the SQL CASE statement to evaluate a condition and return one or more result expressions. This SQL Tutorial will teach you when and how you can use CASE in T-SQL statements. Solution TheCASE expressionis used to build IF … THEN … ELSE stat...
Insert statement with CASE in SQL You can use the CASE expression to insert data into a SQL Server table. The INSERT statement with CASE will scan for the required values and if found, insert values from THEN expression. INSERT INTO column_name VALUES (CASE expression WHEN condition1 THEN re...
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SQL: CASE Statement 1.CASE 写法如下: CASEWHENcondition1THENresult1WHENcondition2THENresult2WHENconditionNTHENresultNELSEresultEND; 解释:1)先匹配第一条,不匹配的话继续第二条,如此循环,只要找到匹配的就终止。如果都没有匹配的,就返回 ELSE里的语句,...
CaseAssociation Table The CaseAssociation table contains all the relationships between cases and other entities.
The CASE statement executes a set of one or more statements when a specified search condition is true. CASE is a standalone statement that is distinct from the CASE expression, which must appear as part of an expression.
So, if we now execute our query with this SQL Case statement it will fetch that information and output it appropriately: It’s not seen in this example because all the fields match arguments but the Case statement in SQL supports an optional Else argument. This means that you’d have see...