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 引數 input_expression 解析...
SQL SELECTBusinessEntityID, LastName, TerritoryName, CountryRegionNameFROMSales.vSalesPersonWHERETerritoryNameISNOTNULLORDERBYCASECountryRegionNameWHEN'United States'THENTerritoryNameELSECountryRegionNameEND; GO D. Use CASE in an UPDATE statement
Assume that you execute a Transact-SQL query in Microsoft SQL Server 2012. When the query contains a long case statement, the query fails. Additionally, you receive the following error: Msg 8631, Level 17, State 1, Line ...
CASE statement in SQL returns Null CASE statement in WHERE clause for IS NULL: I want to say IS or IS NOT Null for a column using CASE Case Statement in Where clause with parameters SQL Server CASE statement inclusion and exclusions case statement inside a where clause with 'IN' operator ...
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 ...
Microsoft JDBC 驅動程式適用於 SQL Server 快速開始 概述 API 參考 API 參考 ISQLServerCallableStatement 介面 ISQLServerConnection 介面 ISQLServerDataSource 介面 ISQLServerPreparedStatement 介面 ISQLServerResultSet 介面 ISQLServerStatement 介面 DateTimeOffset 類別 SQLServerBlob 類別 SQLServerCallableStat...
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 SET, and in clauses such as select_list, IN, WHERE, ORDER BY, and HAVING. ...
从他的阶梯到t - sql DML,Gregory Larsen涵盖了t - sql语言的更高级的方面,如子查询。 There are times where you need to write a single TSQL statement that is able to return different TSQL expressions based on the evaluation of another expression. When you need this kind of functionality you ca...
SQL Server allows for only 10 levels of nesting in CASE expressions. The CASE expression cannot 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, see Control-of-Flow Lang...
SQL Server also transforms a CASE statement of the form: CASE X WHEN Y1 THEN Z1 WHEN Y2 THEN Z2 ... ELSE ZN END Into: CASE WHEN X = Y1 THEN Z1 WHEN X = Y2 THEN Z2 ... ELSE ZN END Thus, CASE statements can yield the same problematic behavior if X is a subquery. Unfortun...