sql - 如何在 SQL Server 中用一个单词替换一列中的重复单词

Question

我有几百万个与数据库中的文件路径相关的字符串； 由于第三方程序，这些路径已变得嵌套如下:

C:\files\thirdparty\thirdparty\thirdparty\thirdparty\thirdparty\thirdparty\unique_bit_here\

我想更新条目，以便 thirdparty\thirdparty\etc 变为 \thirdparty。

我尝试过这段代码:

UPDATE table
SET Field = REPLACE(Field, 'tables\thirdparty\%thirdparty\%\', 'tables\thirdparty\')

Answer 1

WHILE EXISTS (SELECT * FROM table WHERE Field LIKE '%\thirdparty\thirdparty\%')
BEGIN
    UPDATE table SET Field = REPLACE(Field, '\thirdparty\thirdparty\', '\thirdparty\')
END