how to insert null value in sql

Insert SQL value 'NULL' does it works the same as the NULL IN SQL?

stackoverflow.com › questions › 68440600 › insert-sql-value-null-does-it-works-the-same-as-the-null-in-sql

They are different. When you enclose something in single quotes, it becomes a string -- this is true of all keywords in SQL, including NULL.

When you use just NULL, it is the SQL keyword, and it is compatible with all types.

So, these are quite different:

insert into t (col1, col2)
    values ('2021-05-25 11:58:41.000', NULL);

and:

insert into t (col1, col2)
    values ('2021-05-25 11:58:41.000', 'NULL');

'NULL' is a string and only compatible with a string type. You should get a type-conversion error if the column is not a string.

The one caveat is if you are storing the values in a text file for loading into the database. In such a file, strings may or may not be delimited with single quotes, depending on the structure of the file.

Answer from Gordon Linoff on Stack Overflow

w3resource

w3resource.com › sql › insert-statement › insert-null.php

Sql inserting NULL values - w3resource

April 30, 2024 - -- INSERT INTO statement begins INSERT INTO agents -- Specifies the table 'agents' where the data will be inserted VALUES ("A001","Jodi","London",.12,NULL); -- Specifies the values to be inserted into each column of the table: -- "A001" will be inserted into the 'agent_code' column (assuming it's a string data type) -- "Jodi" will be inserted into the 'agent_name' column -- "London" will be inserted into the 'working_area' column -- .12 will be inserted into the 'commission' column (assuming it's a numeric data type) -- NULL will be inserted into the 'salary' column, assuming it allows NULL values ... This SQL code attempts to perform an INSERT operation into the 'agents' table.

Stack Overflow

stackoverflow.com › questions › 68440600 › insert-sql-value-null-does-it-works-the-same-as-the-null-in-sql

Insert SQL value 'NULL' does it works the same as the NULL IN SQL? - Stack Overflow

Top answer

1 of 1

They are different. When you enclose something in single quotes, it becomes a string -- this is true of all keywords in SQL, including NULL.

When you use just NULL, it is the SQL keyword, and it is compatible with all types.

So, these are quite different:

insert into t (col1, col2)
    values ('2021-05-25 11:58:41.000', NULL);

and:

insert into t (col1, col2)
    values ('2021-05-25 11:58:41.000', 'NULL');

'NULL' is a string and only compatible with a string type. You should get a type-conversion error if the column is not a string.

Discussions

Inserting Null Values into SQL Server

Hi all, I’m trying to insert and update rows in a SQL Server database with NULL values. The issue that I’m having is that I continuously receive an error message with no additional information. I have ensured that the table allows for NULL values in those columns and I have tried using ... More on community.n8n.io

community.n8n.io

October 9, 2023

sql server 2012 - How can i insert data into a NULL record in a column that allows NOT NULLS? - Database Administrators Stack Exchange

I hope my questions makes sense but what i am trying to do (which in my mind is obscenely simple which makes it more frustrating that i cant figure it out) is to change a column that consists of NU... More on dba.stackexchange.com

dba.stackexchange.com

November 7, 2016

how do you insert null values into sql server - Stack Overflow

In sql server enterprise manager, how do you write an insert statement and pass in null values? More on stackoverflow.com

stackoverflow.com

Problem inserting NULL values into SQL

The first bit of code you tried for CaseWeight_val and PalletQTY_val would have worked except there's a mistake in how you're creating the INSERT string. You're putting single quotes around all of the values you are inserting, but numeric values should not have single quotes around them. If you did: query2 = " Values ('" & Article_val & "','" & Product_val & "','" & Content_val & "'," & CaseWeight_val & "," & PalletQTY_val & ",'" & UoM_val & "','" & Shrtnr_val & "','" & Product2_val & "','" & Product3_val & "','" & Batch_val instead it would have worked. You have a related problem with inserting null values for strings. If Article_val is NULL, for example, you are inserting 'NULL' instead of NULL into the database; in other words you are not inserting a null value, you are inserting a string containing the word null. I suggest you rethink the way you are constructing your insert string. My recommendation would be to do something more like this: Dim Article_val as String Dim CaseWeight_val as String Article_val = Iif(IsEmpty(Cells(i, 2).Value),"NULL", "'" & Cells(i, 2).Value & "',") CaseWeight_val = Iif(IsEmpty(Cells(i, 5).Value),"NULL", CStr(Cells(i, 2).Value) & ",") query2 = Article_val & CaseWeight_Val You get the idea. More on reddit.com

r/vba

June 26, 2020

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How to insert NULL and empty values in SQL table - YouTube

46. Inserting Null values - YouTube

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GeeksforGeeks

geeksforgeeks.org › sql › how-to-insert-rows-with-null-values-in-sql

How to Insert Rows with NULL Values in SQL? - GeeksforGeeks

July 23, 2025 - In SQL, due to lack of data, we sometimes need to insert rows with NULL values in the tables. Here, the keyword NULL(without quotes) is used to represent no data.

Scaler

scaler.com › topics › sql › null-value-in-sql

NULL Value in SQL - Scaler Topics

March 28, 2024 - NULL can be inserted in any column by using the assignment operator "=". Also, to test whether a NULL is present or not we have to use certain operators, for example, IS NULL and IS NOT NULL.

Quora

quora.com › How-do-you-add-null-values-in-SQL

How to add null values in SQL - Quora

Answer (1 of 3): NULL values are handled differently depending on whether they are in the context of a tuple or a set. In the case of a tuple: (e.g. 1 + NULL), the result is always NULL. This is because if any part of a tuple is missing or unknown then the entire tuple cannot be known and hence m...

YouTube

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SQL SERVER||How many ways to insert NULL values into table? - YouTube

09:13

1. INSERT INTO emp Values(2,'Lavanya',50000,NULL)2. INSERT INTO emp (id,name,location) VALUES(3,'Ramesh','Chennai')3. ALTER TABLE emp ADD Constraint df_name ...

Published May 7, 2024

n8n

community.n8n.io › questions

Inserting Null Values into SQL Server - Questions - n8n Community

Top answer

1 of 1

Hi @JWeitzel, I am sorry you are having trouble. The Microsoft SQL node would work slightly different from what you might expect. The columns field on your screenshot expects the names of the incoming fields, not their values for the update to work. So assuming your fields in n8n match the fields …

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IBM

ibm.com › docs › en › db2-for-zos › 12

Inserting null values into columns by using indicator ...

If you need to insert null values into a column, using an indicator variable or array is an easy way to do so. An indicator variable or array is associated with a particular host variable or host-variable array.

Microsoft Learn

learn.microsoft.com › en-us › sql › t-sql › language-elements › null-and-unknown-transact-sql

NULL and UNKNOWN (Transact-SQL) - SQL Server | Microsoft Learn

November 22, 2024 - To test for null values in a query, use IS NULL or IS NOT NULL in the WHERE clause. You can insert null values into a column by explicitly stating NULL in an INSERT or UPDATE statement, or by leaving a column out of an INSERT statement.

Stack Exchange

dba.stackexchange.com › questions › 154439 › how-can-i-insert-data-into-a-null-record-in-a-column-that-allows-not-nulls

sql server 2012 - How can i insert data into a NULL record in a column that allows NOT NULLS? - Database Administrators Stack Exchange

Top answer

1 of 1

As per the comments, I'm going to assume you're getting mixed up between update and insert.

 USE [DB_A] ;
 UPDATE dbo.address
 SET City = 'test',
     State = 'ing'
 WHERE City IS NULL ;

And

 USE [DB_A] ;
 UPDATE dbo.address
 SET City = NULL,
     State = NULL
 WHERE City = 'test' ;

I think you're there otherwise :-)

IBM

ibm.com › docs › SSGU8G_12.1.0 › com.ibm.sqls.doc › ids_sqs_0875.htm

Inserting NULL Values

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Quora

quora.com › What-is-the-command-to-insert-null-values-in-SQL-fields

What is the command to insert null values in SQL fields? - Quora

Answer (1 of 11): SQL INSERT statement is used to insert new records into table. NULL keyword represents undefined value of a column belonging to database table. According to description as mentioned into above question SQL insert statement should not be executed to insert null values into tabl...

TutorialsPoint

tutorialspoint.com › insert-null-value-into-int-column-in-mysql

Insert NULL value into INT column in MySQL?

June 25, 2020 - You can insert NULL value into an int column with a condition i.e. the column must not have NOT NULL constraints. The syntax is as follows. INSERT INTO yourTableName(yourColumnName) values(NULL); To under

Embarcadero

docwiki.embarcadero.com › InterBase › 2020 › en › Inserting_Rows_with_NULL_Column_Values

Inserting Rows with NULL Column Values - InterBase

In InterBase a column is set to NULL by specifying NULL for the column in the INSERT statement. For example, the following statement stores a row into the DEPARTMENT table, assigns the values of host variables to some columns, and assigns a NULL value to other columns: EXEC SQL INSERT INTO DEPARTMENT (DEPT_NO, DEPARTMENT, HEAD_DEPT, MNGR_NO, BUDGET, LOCATION, PHONE_NO) VALUES (:dept_no, :dept_name, NULL, NULL, 1500000, NULL, NULL);

Stack Overflow

stackoverflow.com › questions › 1149665 › how-do-you-insert-null-values-into-sql-server

how do you insert null values into sql server - Stack Overflow

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1 of 2

116

INSERT INTO atable (x,y,z) VALUES ( NULL,NULL,NULL)

2 of 2

If you're using SSMS (or old school Enterprise Manager) to edit the table directly, press CTRL+0 to add a null.

W3Schools

w3schools.com › sql › sql_null_values.asp

SQL NULL Values - IS NULL and IS NOT NULL

SQL Examples SQL Editor SQL Quiz SQL Exercises SQL Server SQL Syllabus SQL Study Plan SQL Bootcamp SQL Certificate SQL Training ... A field with a NULL value is a field with no value. If a field in a table is optional, it is possible to insert a new record or update a record without adding a value to this field.

Dotnetheaven

dotnetheaven.com › article › how-to-insert-null-value-into-table-in-sql

How to Insert NULL Value into Table in SQL

August 8, 2019 - In this article I am going to explain how to insert NULL value in a table.

ITPro Today

itprotoday.com › home › operating systems › sql server

SQL Server Recent News | ITPro Today

Guide to Decoding SQL Server Bulk Insert Error FilesGuide to Decoding SQL Server Bulk Insert Error Files · Learn how to work with SQL Server's ERRORFILE option to isolate problem records, decode cryptic error messages, and avoid duplicate imports when dealing with bulk data loading errors. ... Introduction to SQL Commands, Part 3: Retrieving and Sorting DataIntroduction to SQL Commands, Part 3: Retrieving and Sorting Data

TechOnTheNet

techonthenet.com › sql › insert.php

SQL: INSERT Statement

If you want to follow along with this tutorial, get the DDL to create the tables and the DML to populate the data. Then try the examples in your own database! ... The simplest way use the INSERT statement is to insert one record into a table using the VALUES keyword. Let's look at an example ...

Outsystems

success.outsystems.com › Documentation › Development_FAQs › How_to_insert_a_null_value_into_a_database_record

Outsystems

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