The statements are executed repeatedly as long as the specified condition is true. The execution of statements in the WHILE loop can be controlled from inside the loop with the BREAK and CONTINUE keywords.Trans
Syntax 引數 備註 範例 顯示其他 2 個 適用於:Microsoft Fabric SQL 資料庫中Microsoft網狀架構倉儲中的 SQL Server Azure SQL 資料庫 Azure SQL 受控執行個體 Azure Synapse Analytics Analytics Platform System (PDW) SQL 分析端點Microsoft網狀架構 設定SQL 語句或語句區塊重複執行的條件。 只要符合指定的條件...
In SQL Server, you use a WHILE LOOP when you are not sure how many times you will execute the loop body and the loop body may not execute even once. Syntax The syntax for the WHILE LOOP in SQL Server (Transact-SQL) is: WHILE condition BEGIN {...statements...} END; ...
尝试在SQL Server 2012中的case下的select语句中运行while循环我觉得你工作得太辛苦了。如果你只需要标题...
流控制语句，如WHILE可以在存储程序中使用。也BEGIN在WHILE以及PRINT在sql server/sybase中使用，而不是在...
1、死循环学会用法 a = 1 while True: print(a) a +=1 2、无限次输入，直到输对，...
Transactions (Transact-SQL) TRY...CATCH (Transact-SQL) TRIGGER_NESTLEVEL (Transact-SQL) TRUNCATE TABLE (Transact-SQL) TYPE_ID (Transact-SQL) TYPE_NAME (Transact-SQL) TYPEPROPERTY (Transact-SQL) UNICODE (Transact-SQL) UNION (Transact-SQL) ...
1、死循环学会用法 a = 1 while True: print(a) a +=1 2、无限次输入，直到输对，...
针对您遇到的“you have an error in your sql syntax; the error occurred while setting param”问题,这里有几个可能的解决步骤和考虑点,我将分点详细解释,并尽可能包含代码片段作为示例(尽管具体SQL语句和参数设置可能因实际情况而异): 1. 检查SQL语句中的语法错误 SQL语法错误可能源于多种原因,如拼写错误、遗...
ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ‘while do’ at line 1 这个错误信息表明MySQL解析器在语法分析过程中遇到了问题,并指出了错误发生的位置。