Answer by Stealth Rabbi for How to drop a column with constraints in SQL...
Just to build on Jeremy Stein's answer, I created a stored procedure for this, and set it up so it can be used to delete a column that has or does not have default constraints. It's not real efficient...
View ArticleAnswer by Steve for How to drop a column with constraints in SQL Server 2005
The answer from pvolders was just what I needed but it missed statistics which were causing and error. This is the same code, minus creating a stored procedure, plus enumerating statistics and dropping...
View ArticleAnswer by Jeroen for How to drop a column with constraints in SQL Server 2005
Looking up the name of the contraint or using MSSQL design view is not always an option. I currently want to make a script for deleting a column with a contraint on it. Using the name is not an option...
View ArticleAnswer by Bitmask for How to drop a column with constraints in SQL Server 2005
I just ran into this. You can delete the column with constraints using MSSQL design view. Right click on the column you want to be dropped (with or without constraints) and you are able to delete this...
View ArticleAnswer by pvolders for How to drop a column with constraints in SQL Server 2005
I also think it's a shortcoming in SQL server to not have a cascading drop available. I worked my way around it by querying the system tables in the same way as other people described...
View ArticleAnswer by jjroman for How to drop a column with constraints in SQL Server 2005
Perhaps it could help a little more:declare @tablename nvarchar(200)declare @colname nvarchar(200)declare @default sysname, @sql nvarchar(max)set @tablename = 'your table'set @colname = 'column to...
View ArticleAnswer by Jeremy Stein for How to drop a column with constraints in SQL...
Here is a script that will delete the column along with its default constraint. Replace MYTABLENAME and MYCOLUMNNAME appropriately.declare @constraint_name sysname, @sql nvarchar(max)select...
View ArticleAnswer by edosoft for How to drop a column with constraints in SQL Server 2005
This query finds default constraints for a given table. It ain't pretty, I agree:select col.name, col.column_id, col.default_object_id, OBJECTPROPERTY(col.default_object_id, N'IsDefaultCnst') as...
View ArticleAnswer by Rob for How to drop a column with constraints in SQL Server 2005
Just Generate Scripts for the table. There you can find the name of all constraints.
View ArticleAnswer by Julien N for How to drop a column with constraints in SQL Server 2005
> select CONSTRAINT_NAME from INFORMATION_SCHEMA.CONSTRAINT_COLUMN_USAGE> WHERE TABLE_NAME = '<tablename>' AND COLUMN_NAME = 'IsClosed'It's not the right solution as it is explained here :...
View ArticleAnswer by DCNYAM for How to drop a column with constraints in SQL Server 2005
I believe explicitly dropping the constraints prior to dropping the column is a "cleaner" solution. This way, you don't drop constraints you may not be aware of. If the drop still fails, you know there...
View ArticleAnswer by Steve Sheldon for How to drop a column with constraints in SQL...
You can get the constraint names by querying the information_schema system views.select CONSTRAINT_NAME from INFORMATION_SCHEMA.CONSTRAINT_COLUMN_USAGE WHERE TABLE_NAME = '<tablename>' AND...
View ArticleAnswer by DCNYAM for How to drop a column with constraints in SQL Server 2005
What do you mean randomly generated? You can look up the constraints on the specific column in management studio or via the sys.tables view and find what the name(s) are.Then, you can change your...
View ArticleHow to drop a column with constraints in SQL Server 2005
I have a column with a "DEFAULT" constraint. I'd like to create a script that drops that column.The problem is that it returns this error:Msg 5074, Level 16, State 1, Line 1 The object...
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