您没有说明如何传递参数/变量，因此我将把它留给您。在本例中，“{param}”可以替换为列或常量 ...
在SQL语句中使用IF或CASE with multiple条件的作用是根据不同的条件执行不同的操作或返回不同的结果。这些条件可以是基于列的值、函数的结果、逻辑表达式等。 使用IF语句可以根据条件执行不同的操作。IF语句的基本语法如下: 代码语言:txt 复制 IF condition THEN statement1; ELSE statement2; END IF; 其中,conditio...
<result> is an arbitrary SQL expression: it can be a simple expression like a constant or column name, or also a complex SQL expression containing subqueries and, of course, nested case expressions. A case expression can contain several when-then pairs. This allows for multiple conditions even...
你可以使用string_split为了达到这个目的。
In the tipSQL Server CASE Expression Overview, Aaron has written a section about data type precedence in the CASE expression. Nesting CASE Expressions With the searched CASE expression, we can have multiple WHEN conditions: SELECT [BusinessEntityID],[JobTitle],[HireDate],Seniority=CASE WHENDATEDIFF...
case when in sql server's stored procedure https://docs.microsoft.com/en-us/sql/t-sql/language-elements/case-transact-sql Evaluates a list of conditions and returns one of multiple possible result expressions. The CASE expression hastwo formats:...
Transact-SQL reference for the CASE expression. CASE evaluates a list of conditions to return specific results.
In a simple case statement, it evaluates conditions one by one. Once the condition and expression are matched, it returns the expression mentioned in THEN clause. We have following syntax for a case statement in SQL with a simple expression 1 2 3 4 5 6 SELECT CASE Expression When ...
SQL中的CASE WHEN使用 Case具有两种格式。简单Case函数和Case搜索函数。 –简单Case函数 CASE sex WHEN ...
In another example, the CASE statement in the WHERE clause consists of multiple WHEN conditions. SQL Server evaluates the first condition and checks for records satisfying the given conditions. -- source: https://www.MSSQLTips.comSELECTSalesOrderID,TerritoryID,ShipMethodID,BillToAddressIDFROM[Advent...