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日期:2025-04-29
選擇性的ELSE 關鍵字是Boolean_expression 得出FALSE 或NULL 時,所執行的替代Transact-SQL 陳述式。 主題連結圖示 Transact-SQL 語法慣例 ......
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日期:2025-04-24
Imposes conditions on the execution of a Transact-SQL statement. The Transact-SQL statement that follows an IF keyword and its condition is executed if the condition is satisfied: the Boolean expression returns TRUE. The optional ELSE keyword introduces ....
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日期:2025-04-24
SQL Tutorial, SQL Server, SQL Statement, SQL Query, MS SQL 2000 Reporting Service, T-SQL, SQL Function, SQL Syntax, SQL User Define Function, SQL Trigger ... SQL IF...ELSE Statement used to test a condition. IF...ELSE Statement using in execution of ......
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日期:2025-04-22
Example - Nested IF...ELSE Statements Since we can't write an ELSE IF condition within the IF...ELSE statement, we need to nest multiple IF...ELSE statements instead. Let's look at an example of how to nest multiple IF...ELSE statements in SQL Server ......
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日期:2025-04-22
如果IF 關鍵字的條件獲得滿足,就會執行在IF 關鍵字及其條件之後的Transact-SQL
陳述式:布林運算式會傳回TRUE。 選擇性的ELSE 關鍵字導入了另一個在IF 條件 ......
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日期:2025-04-25
The optional ELSE keyword introduces an alternate Transact-SQL statement that
is executed when the IF condition is not satisfied (when the Boolean ......
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日期:2025-04-25
IF and else IF : If « Transact SQL « SQL Server / T-SQL....
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日期:2025-04-25
Imposes conditions on the execution of a Transact-SQL statement. The Transact-SQL statement that follows an IF keyword and its condition is executed if the condition is satisfied: the Boolean expression returns TRUE. The optional ELSE keyword introduces ....