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1 人當中有 1 人評分為有幫助- 為這個主題評分

REPLACE (Transact-SQL)

SQL Server 2005

將指定字串值的所有相符項目取代成另一個字串值。

主題連結圖示 Transact-SQL 語法慣例

複製 

REPLACE ( string_expression1 , string_expression2 , string_expression3 )
string_expression1

這是要搜尋的字串運算式。string_expression1 可以是字元或二進位資料類型。

string_expression2

這是要尋找的子字串。string_expression2 可以是字元或二進位資料類型。

string_expression3

這是取代字串。string_expression3 可以是字元或二進位資料類型。

如果其中一個輸入引數是 nvarchar 資料類型，便傳回 nvarchar；否則，REPLACE 會傳回 varchar。

如果任何一個引數是 NULL，便會傳回 NULL。

REPLACE 會以輸入的定序為基礎來執行比較。若要執行指定定序的比較，您可以利用 COLLATE，將明確的定序套用至輸入上。

下列範例利用 xxx 來取代 abcdefghi 中的 cde 字串。

複製 
SELECT REPLACE('abcdefghicde','cde','xxx');
GO

以下為結果集：

複製 
------------
abxxxfghixxx
(1 row(s) affected)

下列範例使用 COLLATE 函數。

複製 
SELECT    REPLACE('Das ist ein Test'  COLLATE Latin1_General_BIN,
'Test', 'desk' );
GO

以下為結果集：

複製 
------------
Das ist ein desk
(1 row(s) affected)
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