Deprecated Column Types
Column data types text, ntext and image will be removed in a future version of SQL Server. As such use of these data types is not recommended, and any affected columns should have their data types changed, as shown below. Changing the data types as below is generally a quick change, not requiring any downtime on production servers.
text → varchar(max)
ntext → nvarchar(max)
image →varbinary(max)
Suggested Action
Convert the deprecated column type to a new and supported data type.
How to Upgrade Deprecated Data Types in SQL Server
ALTER TABLE TableName ALTER COLUMN TextColum VARCHAR(MAX);
Further Reading
ntext, text, and image (Transact-SQL) | Microsoft Docs
ALTER TABLE (Transact-SQL) | Microsoft Docs