SQL Server: Find Out Default Value of a Column with a Query

SQL Server: Find out default value of a column with a query

You can find the stored definition with the below (remember to adjust the column and table name to find to be ones relevant to your environment!)

SELECT object_definition(default_object_id) AS definition
FROM   sys.columns
WHERE  name      ='colname'
AND    object_id = object_id('dbo.tablename')

sql server : get default value of a column

You can do this (done a SELECT * just so you can see all the info available):

SELECT *
FROM INFORMATION_SCHEMA.COLUMNS
WHERE....

This includes a "COLUMN_DEFAULT" column in the resultset.

How to select the default values of a table?

It seems like this might be solution:

SELECT * FROM (
   SELECT
    sys1.name AS COLUMN_NAME,
    replace(replace(object_definition(sys1.default_object_id),'(',''),')','') AS DEFAULT_VALUE
FROM sys.columns AS sys1
     LEFT JOIN information_schema.columns ON sys1.name = information_schema.columns.column_name
WHERE object_id = object_id('pet')
  AND information_schema.columns.table_name = 'pet'
) AS SourceTable PIVOT(MAX(DEFAULT_VALUE) FOR COLUMN_NAME IN(ID, name, age)) AS PivotTable;

It returns:

ID  |name  |age
----|------|---
NULL|noname|1

Probably the column types are incorrect - but maybe I can live with that.
Thanks for @Nissus to provide an intermediate step to this.

How to return default value from SQL query

Assuming the name is not nullable and that Id is unique so can match at most one row.

 SELECT 
    ISNULL(MAX(Name),'John Doe')
 FROM 
    Users 
 WHERE 
    Id = @UserId  

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