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  SQL 教學 » UPDATE - SQL Tutorial
  
  SQL 教學 » UPDATE @ SQL 教學網站 (SQL Tutorial) - SQL語法 and More ... UPDATE 敘述句 (SQL UPDATE Statement) 如果我們要修改資料表中的資料我們就會需要用到 UPDATE。 UPDATE 語法 (SQL ...
  
  2025-04-29
  
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SQL - UPDATE Statement | 1Keydata - 1Keydata - Free Online Programming Tutorials

日期：2025-04-28

This section explains the UPDATE statement. SQL UPDATE SQL > SQL Commands > Update Statement Once there's data in the table, we might find that there is a need to modify the data. To do so, we can use the UPDATE command. The syntax for this is ......

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SQL - Update - Tizag Tutorials

日期：2025-04-22

SQL - Update SQL UPDATE is the command used to update existing table rows with new data values. UPDATE is a very powerful command in the SQL world. It has the ability to update every single row in a database with the execution of only a single query. Due ...

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SQL Server Update: "Using CASE Expressions"

日期：2025-04-29

ELSE 'Unknown' END, FROM titles This statement would return results similar to these: Title Price ... ......

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Using CASE Statements In A SQL UPDATE Query - Ben Nadel

日期：2025-04-29

30 Aug 2007 ... UPDATE TABLE SET. A (only if its null)= B.a ,X= B.x ... I want to set the age to Null if it is less than 18...

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Head First SQL: Hands-On SQL UPDATE/SET/CASE

日期：2025-04-23

Now try a CASE expression to update all of the categories at once (page 242), then try the exercise on page 245. UPDATE movie_table SET category = CASE WHEN drama = 'T' THEN 'drama' WHEN comedy = 'T' THEN 'comedy' WHEN action = 'T' THEN ......

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sql update set case when then

日期：2025-04-27

sql update set case when then update, then, sql, case, set, when, ... Advertising SQL Server Update: "Using CASE Expressions" 4.8 5 1 Craig S. Mullins Database Performance Management: Return to Home Page. August 1999 : Using CASE Expressions . by ......

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sql - UPDATE with CASE and IN - Oracle - Stack Overflow

日期：2025-04-23

The query looks like this i SQL: UPDATE tab1 SET budgpost_gr1= CASE WHEN (budgpost in (1001,1012,50055)) THEN 'BP_GR_A' WHEN (budgpost in (5,10,98,0)) THEN 'BP_GR_B' WHEN (budgpost in (11,876,7976,67465)) ELSE 'Missing' END ......

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