This may be a simple a question but I just wanted to clarify, at work I have a table containing a list of titles and I also have a list of authors in two different tables. What would be best way to ...
Take a look at the following sqlfiddle: http://sqlfiddle.com/#!2/dacb5/1 CREATE TABLE contacts ( id int auto_increment primary key, name varchar(20), network_id int, ...
Possible Duplicate: Why use an int as a lookup table's primary key? So far, I'm accustomed to creating an ID column for every table and it is practical in a way that it makes me not ...
This is how I have designed: visitorID visitedprofileID datetime Is it a good idea to add an ID (primary key) to the table, I mean recordID (primary key). (MySQL with PHP)
Is there any way to temporarily enforce columnar uniqueness on items currently being inserted? For instance, I'm splitting payments and charges to their own tables from a previously unified ...
In a table, such as a user table, where there will only be 1 row with a for any particular user, why have an ID field, let alone as the primary key?