search:sql if else then相關網頁資料

- www.1keydata.com
  
  SQL CASE - 1Keydata SQL 語法教學
  
  CASE 是SQL 用來做為IF-THEN-ELSE 之類邏輯的關鍵字。 CASE 的語法如下：. SELECT CASE ("欄位名") WHEN "條件1" THEN "結果1" WHEN "條件2" THEN ...
  
  2026-04-18
  
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- msdn.microsoft.com
  
  IF...ELSE (Transact-SQL) - MSDN - Microsoft
  
  在Transact-SQL 陳述式的執行上強加條件。 ... Transact-SQL 語法慣例 ... 除非使用陳述式區塊，否則，IF 或ELSE 條件只會影響一個Transact-SQL 陳述式的效能。
  
  2026-04-23
  
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SQL Tutorials: SQL IF...ELSE Statement

日期：2026-04-17

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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IF … THEN … ELSE logic in Teradata SQL | datastagetips

日期：2026-04-18

The standard ANSI SQL and the Teradata SQL doesn't support IF...THEN...ELSE statement or expression. There are different ways to implement conditional logic in SQL. Here I will show you one. SQL provides the much more powerful CASE expression. Using the ....

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IF...ELSE - TechNet - Microsoft

日期：2026-04-24

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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Oracle Concepts - PL/SQL IF/THEN/ELSE Statements

日期：2026-04-20

Oracle Concepts - PL/SQL IF/THEN/ELSE Statements ... If you like Oracle tuning, you may enjoy the new book "Oracle Tuning: The Definitive Reference", over 900 pages of BC's favorite tuning tips & scripts....

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IF-THEN-ELSE statement in PL/SQL - Tutorials for EasyMock, Object Oriented Analysis & Design, Tik

日期：2026-04-19

PL/SQL IF-THEN-ELSE statement - Learn PL/SQL programming in simple and easy steps starting with PL/SQL syntax, data types, variables, constants, records, conditional statements, iterative statements, cursors, precedures, functions, exception handling ......

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[程式][SQL] CASE 類似於程式語言裡的if/then/else 語句，用來作邏輯 ...

日期：2026-04-18

2011年12月13日 ... CASE 是SQL 用來做為if-then-else 之類邏輯的關鍵字。 CASE 的語法如下： CASE WHEN condition THEN result [WHEN&....

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Oracle/PLSQL: IF-THEN-ELSE Statement - TechOnTheNet.com

日期：2026-04-21

This Oracle tutorial explains how to use the IF-THEN-ELSE statement in Oracle with syntax and examples. In Oracle, the IF-THEN-ELSE statement is used to ......

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