My question is in relation to database theory. If I am given a set of tables, is there a way to determ开发者_运维技巧ine the base table just by looking at them?It is a tenet of the relational model
I am trying to design a user table for MySQL. for now, my user table looks like this users ( BIGINT id, VARCHAR(?) username,
What is the best solution/practice for situation like this? I have a table, that can reference to multiple tables (objects)?
I Have a web site, which is on server1. It uses web service, which is on server2. Web service uses database, which is on server3.
I\'ve been programming and using a survey software for more than three years. It began as a simple survey system, with a basic \'users\' SQL table, as you can find, for instance, in most CMS\'s. I ini
Hi there i want to create two distinct tables in a database. These tables are User_details and Creditcard_details
I use Squirre开发者_如何学Gol SQL to connect to a JavaDB/Derby database on my desktop. I can run SQL queries.
I know you can ALTER the column order in MySQL with FIRST and AFTER, but why would you w开发者_如何转开发ant to bother? Since good queries explicitly name columns when inserting data, is there really
I\'m using the mysql GREATEST() function to select the highest integer value from either column (apples or peaches).
My table structure is: CREATE TABLE IF NOT EXISTS `users_settings_temp` ( `id` int(10) unsigned NOT NULL AUTO_INCREMENT,
加载中,请稍侯......