INSERT NULL values not allowed

Question

INSERT NULL values not allowed

OJDev

SSC Veteran

Points: 248
More actions
April 14, 2009 at 7:52 am

#155556

I am trying to insert values from into one table from another table
INSERT INTO TABLE1 (
Version
, Type
, Name
, Description
, Category
)
SELECT
Version = 1
, Type = 2
, Name = t.name
, Description = t.description
, Category = t.category
)
FROM TABLE2 t
My category column in table1 doesn't allow NULL values but my SELECT statement on table2 returns a NULL value for category so my insert statement fails. How can I adress this issue?

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Sean Lange SSC Guru Points: 286590 More actions · Answer 1

INSERT INTO TABLE1 (
Version
, Type
, Name
, Description
, Category
)
SELECT
Version = 1
, Type = 2
, Name = t.name
, Description = t.description
, Category = t.category
)
FROM TABLE2 t

One of two way. Either allow nulls in Table1 or assign a "default" in your script.

SELECT

Version = 1

, Type = 2

, Name = t.name

, Description = t.description

, Category = isnull(t.category, SomeDefaultHere)

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Vijaya Kadiyala SSCrazy Eights Points: 9149 More actions · Answer 2

You can even try with CASE statement.

ex:

CASE WHEN arg1 IS NULL THEN 'x' ELSE arg1 END

Thanks -- Vijaya Kadiyala
www.dotnetvj.com
SQL Server Articles For Beginers

Gabriel P SSCarpal Tunnel Points: 4289 More actions · Answer 3

This also should work if you can't modify the table.

INSERT INTO TABLE1 (

Version

, Type

, Name

, Description

, Category

)

SELECT

Version = 1

, Type = 2

, Name = t.name

, Description = t.description

, Category = IsNull(t.category,'')

)

FROM TABLE2 t

Gabriel P SSCarpal Tunnel Points: 4289 More actions · Answer 4

Sorry Slange already posted this.

Gabriel P (4/14/2009)
This also should work if you can't modify the table.
INSERT INTO TABLE1 (
Version
, Type
, Name
, Description
, Category
)
SELECT
Version = 1
, Type = 2
, Name = t.name
, Description = t.description
, Category = IsNull(t.category,'')
)
FROM TABLE2 t