IT Nursery
I have table name called “Person” with following column names P_Id(int), LastName(varchar), FirstName (varchar). I forgot to give NOT NULL Constraint to P_Id. ...
-
June 2, 2022
- 0 Comments
In SQL Server, I have a new column on a table: ALTER TABLE t_tableName ADD newColumn NOT NULL This fails because I specify ...
-
June 2, 2022
- 0 Comments
I have a problem when I try to add constraints to my tables. I get the error: Introducing FOREIGN KEY constraint ‘FK74988DB24B3C886’ on ...
-
June 1, 2022
- 0 Comments
I have an SQLite database. I am trying to insert values (users_id, lessoninfo_id) in table bookmarks, only if both do not exist before ...
-
May 29, 2022
- 0 Comments
In PostgreSQL 8 is it possible to add ON DELETE CASCADES to the both foreign keys in the following table without dropping the ...
-
May 28, 2022
- 0 Comments
I have a table whose primary key is used in several other tables and has several foreign keys to other tables. CREATE TABLE ...
-
May 28, 2022
- 0 Comments
I’m looking for a way to temporarily turn off all DB’s constraints (eg table relationships). I need to copy (using INSERTs) one DB’s ...
-
May 25, 2022
- 0 Comments
I have an existing table called Persion. In this table I have 5 columns: persionId Pname PMid Pdescription Pamt When I created this ...
-
May 24, 2022
- 0 Comments
I’m seeing an error appear in my debugger log: Will attempt to recover by breaking constraint <NSLayoutConstraint:0x191f0920 H:[MPKnockoutButton:0x17a876b0]-(34)-...