How Can I Replace a Substring in a SQL Server Table Column Using UPDATE and REPLACE?

Use UPDATE and REPLACE functions to replace substrings in SQL Server table columns

This article describes how to update a column in a SQL Server table that contains a path reference. Because of the path change, a specific portion of the path needs to be updated in all records in the column.

This can be achieved using a simple UPDATE statement and the REPLACE function. The REPLACE function takes three parameters: the string to update, the substring to replace, and the replacement string.

The following is a code example:

<code class="language-sql">UPDATE my_table
SET path = REPLACE(path, 'oldstring', 'newstring');</code>

• my_table: Replace this with the name of your target table.
• path: Represents a column containing a path reference.
• REPLACE: This function performs string replacement.
• 'oldstring': This is the substring you want to replace.
• 'newstring': This is the replacement substring.

After executing this statement, you can easily replace the specified portion of the path in all records in the path column. The original path will remain unchanged, except for the updated paragraphs.

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