2
votes
2answers
732 views

Constraints based on other columns

Is it possible to limit what values are allowed in a coulumn based off of other values in the row? For example, my table: ID Test_mode Active -- --------- ------ 1 1 Null 2 0 ...
3
votes
3answers
3k views

Altering nullability of column in SQL Server

Say I have the following table: CREATE TABLE test(test_id int not null identity primary key, field1 int not null, field2 int ); CREATE INDEX IDX_test_field1 ON test(field1); CREATE INDEX ...
2
votes
2answers
3k views

SQL Server : how to drop all constraints on a table in T-SQL

I´d like to drop all constraints on all tables in my database, because I need to change the relationships of many of the tables. Is there any way to do that with T-SQL? I cannot find any solution ...
1
vote
2answers
392 views

UDF in check constraint — downside?

I have a table where all actions affect single rows (insert and update, no delete's but if there were, they would be individual as well). I'm considering using a UDF in a check constraint so I can ...
0
votes
1answer
844 views

unique key violation occuring on a unique value combination

SQL SERVER 2008 I have a mapping table that contains a deleted date column. Since the table uses a surrogate key as its unique identifier there is a uniqueness constraint on the table. This ...
2
votes
1answer
82 views

How to get dependencies order

I have a Database Called Total and I have about 40 tables in it.I am trying to move the tables in the database into a different server So I have prepared all the create table scripts but the problem ...