Practice Activity: Replacing NULL and blank values in Microsoft SQL Server
Showing a lack of data is not user-friendly. Let's see how we can change this.
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Normally data has at least one character. But what happens when you have either NULL data or blank data?
There are a variety of ways to change this data. In this video, we'll have a look at ISNULL, COALESCE, and CASE WHEN.
Why not try this as a Practice Activity? If you would like the starting code, here it is:
DROP TABLE IF EXISTS TextValues
CREATE TABLE TextValues
(txtField varchar(20) NULL)
INSERT INTO TextValues VALUES
('First value'),
('Second value'),
(''),
(NULL)
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