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MS SQL Server - delete row where column is empty string (blank)
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In this article, we would like to show you how to delete a row where the column is an empty string in MS SQL Server.
Quick solution:
DELETE FROM [table_name] WHERE [column_name] = '';
If your column is NULL then the below query works:
DELETE FROM [table_name] WHERE [column_name] IS NULL;
Practical example
To show how to delete rows with an empty string values, we will use the following table:
Note:
At the end of this article you can find database preparation SQL queries.
Example
In this example, we will delete rows from users
table with empty email
column.
Query:
DELETE FROM [users] WHERE [email] = '';
Result:
Database preparation
create_tables.sql
file:
CREATE TABLE [users] (
[id] INT IDENTITY(1,1),
[name] VARCHAR(50) NOT NULL,
[surname] VARCHAR(50) NOT NULL,
[email] VARCHAR(50),
PRIMARY KEY ([id])
);
insert_data.sql
file:
INSERT INTO [users]
( [name], [surname], [email])
VALUES
('John', 'Stewart', 'john@email.com'),
('Chris', 'Brown', ''),
('Kate', 'Lewis',''),
('Ailisa', 'Gomez', 'ailisa@email.com'),
('Gwendolyn', 'James', ''),
('Simon', 'Collins', ''),
('Taylor', 'Martin',''),
('Andrew', 'Thompson', 'andrew123@email.com');