I need to update the values of a column, with a substring replace being done on the existing values.
Example:
Data contains abc@domain1, pqr@domain2 etc.
I need to update the values such that @domain2 is replaced with @domain1.
3 Answers
The syntax for REPLACE:
REPLACE (string_expression,string_pattern,string_replacement)
So that the SQL you need should be:
UPDATE [DataTable] SET [ColumnValue] = REPLACE([ColumnValue], 'domain2', 'domain1')
If anyone cares, for NTEXT, use the following format:
SELECT CAST(REPLACE(CAST([ColumnValue] AS NVARCHAR(MAX)),'find','replace') AS NTEXT)
FROM [DataTable]
update YourTable
set YourColumn = replace(YourColumn, '@domain2', '@domain1')
where charindex('@domain2', YourColumn) <> 0
