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,...
SQL Server:如何显示case语句中的占位符行? SQL Server : WHERE子句中的CASE with in 在select with case语句中创建字段 使用case在select语句中提取子查询数据 SQL: ORDER BY语句中的嵌套Case 如何通过MySql在SQL语句中使用SELECT CASE 在select语句中将SQL CASE设置为多个变量 Sql server select条件case when SQL...
我正试图使用星火SQL中的嵌套案例,如下所示CAST(CASE WHEN 2 > 0 THEN 2.0 ELSE 1.2 END ASError in SQL statement: ParseException: mismatched input '1' expecting {<EOF>, ';'}(line 1, pos 17)== 浏览20提问于2022-07-20得票数 0 回答已采纳 1回答 是否可以在同一外部查询的case语句中使用子查...
The CASE statement can be used in SQL Server (Transact-SQL). You could use the CASE statement in a SQL statement as follows: (includes theexpressionclause) SELECT contact_id, CASE website_id WHEN 1 THEN 'TechOnTheNet.com' WHEN 2 THEN 'CheckYourMath.com' ELSE 'BigActivities.com' END ...
SQL Server中的WHEN ELSE in Case表达式 我正在SQL Server中编写case表达式,希望在else块中添加硬编码值。 我想检查case表达式,如果下面的DHB输出是2.1和ABC001,那么它应该显示ABC Hospital的硬编码值。 SELECT DISTINCT userid, CASE WHEN CHARINDEX('-', e.name) > 0...
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 ...
The searched CASE expression evaluates a set of Boolean expressions to determine the result. Both formats support anoptional ELSEargument. CASE can be used in any statement or clause that allows a valid expression. For example, you can use CASE in statements such as SELECT, UPDATE, DELETE and...
SELECT ステートメント内では、検索 CASE 式は比較値に基づいて結果セット内で値を置換できます。 次の例では、表示価格を、製品の価格範囲に基づいたテキスト コメントとして表示しています。 SQL コピー USE AdventureWorks2022; GO SELECT ProductNumber, Name, "Price Range" = CASE WHEN Li...
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 ...
We have following syntax for a case statement in SQL with a simple expression 1 2 3 4 5 6 SELECT CASE Expression When expression1 Then Result1 When expression2 Then Result2 ... ELSE Result END Usually, we store abbreviations in a table instead of its full form. For example, in my...