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日期:2024-07-09
I have a tableA: ID value 1 100 2 101 2 444 3 501 Also TableB ID Code 1 2 Now I want to populate col = code of table B if there exists ID = 2 in tableA. for multiple values , get max value. else populate it with '123'. Now here is what I used: if exists (...
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日期:2024-07-10
FAQs/Tutorials >> SQL Server FAQ SQL Server FAQ - "IF ... ELSE IF ... ELSE ..." Statement Structures By: FYIcenter.com (Continued from previous topic...) How To Use "IF ... ELSE IF ... ELSE ..." Statement Structures? "IF ... ELSE IF ... ELSE ..." statemen...
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日期:2024-07-13
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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日期:2024-07-14
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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日期:2024-07-09
在Transact-SQL 陳述式的執行上強加條件。 如果Boolean_expression 得出TRUE,
便會執行在Boolean_expression 之後的Transact-SQL 陳述式(sql_statement)。...
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日期:2024-07-10
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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日期:2024-07-07
查詢時,要顯示欄位有IF ELSE的效果單一條件CASE WHEN 欄位= ? THEN X
ELSE Y END AS 顯示欄位名多層條件CASE WHEN 欄位= ? THEN W W....
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日期:2024-07-07
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 ......