sql from null to not null

Relieved Rhinoceros answered on December 7, 2020 Popularity 10/10 Helpfulness 4/10

answer sql from null to not null

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sql from null to not null

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ALTER TABLE ime_tabele
ALTER stolpec SET NOT NULL;

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Contributed on Apr 07 2021

Relieved Rhinoceros

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sql not null

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SELECT column_name FROM table_name 
WHERE column_name IS NOT NULL;

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Contributed on Dec 07 2020

Nikky Amresh

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is null and is not null in sql

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Using 'NULL' and 'NOT NULL'

About `NULL` and `NOT NULL` in SQL, Examples of how to use these conditions in

SQL queries.

-- To Check if column contains 'NULL' values, use the 'IS NULL' condition.
-- Example, select all the rows where the column "column_name" is NULL. 
-- Query will return all rows where the `column_name` has `NULL` values.

SELECT * FROM table_name WHERE column_name IS NULL;

#-----------------------------------------------------------------------#

-- To check if a column doesn't contain `NULL` values, Use the `IS NOT NULL` condition.
-- Select all rows where the column "column_name" IS NOT NULL.
-- Query will return all rows where `column_name` doesn't have `NULL` values.

SELECT * FROM table_name WHERE column_name IS NOT NULL; 

#------------------------------------------------------------------------#
# Combine Example
-- Select rows where "column1" is NULL and "column2" is NOT NULL.
-- Return rows where `column` is `NULL` and `column2` is NOT NULL.
-- Can also combine these condition with other clauses, such as `where`, `AND`, `OR`, etc..
SELECT * FROM table_name
WHERE column1 IS NULL
AND column2 IS NOT NULL;

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Contributed on Mar 10 2024

Rajput

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SQL IS NULL and IS NOT NULL

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SELECT *
FROM Employee
WHERE email IS NULL;

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Contributed on May 20 2022

SAMER SAEID

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sql from null to not null

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