The conditional operator ?:, also known as the ternary conditional operator, evaluates a Boolean expression and returns the result of one of the two expressions, depending on whether the Boolean expression evaluates to true or false.
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C# ?: 運算子
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C# TryParse 達成IsNumeric判斷
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SQLite Transaction
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PL SQL 檢查統一編號
create or replace function XXXXXXXXXXX(PVENDOR_ID IN VARCHAR2) RETURN int is
RETURNVAL int;
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Oracle sequence number not allowed here
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資料夾的內容「大小」跟「磁碟大小」
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SQL 判斷區間是否重複
