/SQL/Sql script to remove default from column

Sql script to remove default from column

DECLARE @tableName VARCHAR(MAX) = '<MYTABLENAME>'
DECLARE @columnName VARCHAR(MAX) = '<MYCOLUMNAME>'
DECLARE @ConstraintName nvarchar(200)
SELECT @ConstraintName = Name 
FROM SYS.DEFAULT_CONSTRAINTS
WHERE PARENT_OBJECT_ID = OBJECT_ID(@tableName) 
AND PARENT_COLUMN_ID = (
    SELECT column_id FROM sys.columns
    WHERE NAME = @columnName AND object_id = OBJECT_ID(@tableName))
IF @ConstraintName IS NOT NULL
    EXEC('ALTER TABLE '+@tableName+' DROP CONSTRAINT ' + @ConstraintName)
    
-- Just replace <MYTABLENAME> and <MYCOLUMNNAME>

Source: stackoverflow.com

Similar codes

11 votes151 views2 answers
Oracle source code
SQL
0 vote145 views1 answer
Mysql set column equal to another automatic
SQL
2 votes203 views3 answers
3 days back in sql server
SQL
3 votes206 views2 answers
Oracle sql first day of month
SQL
0 vote178 views1 answer
Sql order by number not ordered
SQL
5 votes175 views1 answer
Oracle get ddl
SQL
0 vote144 views1 answer
Sql show all users
SQL
0 vote162 views1 answer
Postgresql custom order by
SQL
5 votes152 views3 answers
Mysql extract month from date
SQL
3 votes148 views1 answer
Oracle rollback
SQL