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PostgreSQL - find row with null value in column
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In this article, we would like to show you how to find rows with NULL
value in one of the columns in PostgreSQL.
Quick solution:
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SELECT *
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FROM "table_name"
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WHERE "column_name" IS NULL;
Sometimes your data can be an empty string. You can select such rows with the below query:
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SELECT FROM "table_name" WHERE "column_name" = '';
To show how to find rows with NULL
value in one of the columns, we will use the following table:

Note:
At the end of this article you can find database preparation SQL queries.
In this example, we will select rows from users
table with NULL
value in email
column.
Query:
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SELECT *
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FROM "users"
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WHERE "email" IS NULL;
Result:

create_tables.sql
file:
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CREATE TABLE "users" (
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"id" SERIAL,
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"name" VARCHAR(50) NOT NULL,
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"surname" VARCHAR(50) NOT NULL,
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"email" VARCHAR(50),
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PRIMARY KEY ("id")
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);
insert_data.sql
file:
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INSERT INTO "users"
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( "name", "surname", "email")
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VALUES
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('John', 'Stewart', 'john@email.com'),
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('Chris', 'Brown', NULL),
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('Kate', 'Lewis', NULL),
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('Ailisa', 'Gomez', 'ailisa@email.com'),
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('Gwendolyn', 'James', NULL),
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('Simon', 'Collins', NULL),
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('Taylor', 'Martin', NULL),
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('Andrew', 'Thompson', 'andrew@email.com');