How do I drop a constraint without a name?

How do I drop a constraint without a name?

How to drop SQL default constraint without knowing its name?

1. IF EXISTS(SELECT * FROM sysconstraints.
2. WHERE id=OBJECT_ID(‘SomeTable’)
3. AND COL_NAME(id,colid)=’ColName’
4. AND OBJECTPROPERTY(constid, ‘IsDefaultCnst’)=1)
5. ALTER TABLE SomeTable DROP CONSTRAINT DF_SomeTable_ColName.

Can you rename a constraint in Oracle?

ALTER TABLE SPECIALITE RENAME CONSTRAINT SYS_C002786098 TO PK_SPECIALITE is the command. You need to know the name of the constraint that you are renaming. You can get the name of the constraint from USER_CONSTRAINTS for tables you own.

How can I rename an auto-named constraint?

Open SSMS. Find table. Open constraints. Find constraint name. Right click, rename. Give new name. You can use sp_rename manually. Note that this is fixed in SSMS 2012 (I don’t remember if I have SP1 installed or not).

Can you change the name of a FOREIGN KEY constraint?

This is more one post on mysql query, I don’t remember exactly time but i had need to change name of foreign key constraint column field. We can rename field name easily if we didn’t set foreign key constraint. But if you set foreign key constraint then you can’t rename easily.

How to rename a constraint with a period in it?

If the constraint to be renamed has a period in it (dot), then you need to enclose it in square brackets, like so: sp_rename ‘schema. [Name.With.Period.In.It]’, ‘New.Name.With.Period.In.It’ Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. Provide details and share your research! But avoid …

How to rename a check constraint in SSMS?

You can use sp_rename. +1 This is what SSMS uses when renaming constraints. For a PK constraint it passes INDEX as object type. It’s also important to note that CHECK constraints, unlike PKs, do not require a table prefix on the first sp_rename parameter, and will fail if you use one.