问题
How to replace text in sql server 2000 in a ntext column with more than 4000 characters? conversion to nvarchar(max) does not work as it truncates values.
回答1:
Working with TEXT/NTEXT is a mess - one of the many reason to get rid of those fields as quickly as possible.
You need to manipulate those with command such as READTEXT, WRITETEXT, UPDATETEXT and other - see some resources for help:
- MSDN docs on READTEXT
- MSDN docs on WRITETEXT
- MSDN docs on UPDATETEXT
- How do I handle REPLACE() within an NTEXT column in SQL Server?
- Update Text, NText Columns using UPDATETEXT Command in MS SQL Server
回答2:
nvarchar(max) isn't supported until sql server 2005. For sql server 2000 columns with more than 4000 wide characters, you must pull the data down to a client application and make your changes there.
来源：https://stackoverflow.com/questions/2133635/replace-ntext-more-than-4000-characters-in-sql-server-2000