A key is a set of attributes that is irreducibly unique and non-nullable within a table.
I have a table for storing coupons/discounts, and I want to use the coupon_code column as the primary …
mysql sql primary-key unique varcharSay I have an ID row (int) in a database set as the primary key. If I query off the …
sql sql-server tsql indexing primary-keyI get seven workbooks (xlsx files) from different clients, each with one sheet. Each sheet has at least one common …
excel primary-key unique vlookupI have a stored procedure that is working with a large amount of data. I have that data being inserted …
sql-server indexing primary-key temp-tablesWould it be possible in SQL Server 2008 to have a table created with 2 columns that are at the same time …
sql-server foreign-keys primary-keyI tried to find it out in google but not satisfactory answer is given out there. Can anybody explain the …
primary-key unique-keyI'm using Rails migrations to manage a database schema, and I'm creating a simple table where I'd like to use …
ruby-on-rails database migration primary-keyI have a little witty problem. Say, I inserted a row with some data in a table where a primary …
sql sqlite insert row primary-keyIn my table tbphotos I had a 100 records. I then deleted all the records and now that I want to …
mysql primary-keyIs there a way to reset the primary key of a PostgreSQL table to start at 1 again on a populated …
postgresql primary-key reset