Using a SELECT statement with a simple CASE expression 在SELECT 语句中,CASE 简单表达式只能用于等同性检查,而不进行其他比较。 下面的示例使用 CASE 表达式更改产品系列类别的显示,以使这些类别更易于理解。 USE AdventureWorks2012; GO SELECT ProductNumber, Category = CASE ProductLine WHEN 'R' THEN 'Road' ...
SQL Server allows for only 10 levels of nesting inCASEexpressions. TheCASEexpression can't be used to control the flow of execution of Transact-SQL statements, statement blocks, user-defined functions, and stored procedures. For a list of control-of-flow methods, seeControl-of-Flow Language (...
sql case statement
SQL Server allows for only 10 levels of nesting inCASEexpressions. TheCASEexpression can't be used to control the flow of execution of Transact-SQL statements, statement blocks, user-defined functions, and stored procedures. For a list of control-of-flow methods, seeControl-of-Flow Language (...
以上LINQ语句转换成SQL语句如下: CASEWHEN(uld.ATIMEISNULL)THENGETDATE()ELSEuld.ADTIMEENDASATIME, 例子二: IsDisabled=ul.IsDisabled||l.IsDisabled 以上LINQ语句转换成SQL语句如下: CASEWHEN([ul].[IsDisabled]=1OR[l].[IsDisabled]=1)THENcast(1asbit)WHEN(NOT([ul].[IsDisabled]=1OR[l].[IsDisabl...
SQL CASE 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'...
SQL语句大全中的sql语句备忘录—sql日常使用指北 ,类似select 中的case。...RecID 是自增长字段, 写一个SQL语句, 找出表的第31到第40个记录。 ...Transact-SQL 语句影响的行数的信息。...SET NOCOUNT 为 ON 时,不返回计数(表示受 Transact-SQL 语句影响的行数)。...转载本站文章《SQL语句大全中的sql语...
简单Case 语句将某个表达式与一组简单表达式进行比较,以返回特定的值。 搜索Case 语句计算一组布尔表达式,以返回特定的值。 语法 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 ...
Solved: Hi all, I need some help with convert the below CASE statement to DAX query as a measure. Which should be able to execute in it's optimal
The SQL CASE ExpressionThe CASE expression goes through conditions and returns a value when the first condition is met (like an if-then-else statement). So, once a condition is true, it will stop reading and return the result. If no conditions are true, it returns the value in the ELSE...