auto increment

It is common for relational databases to use the concept of primary keys, generated by an auto-increment feature or by a sequence generator.

Though you did not specify that column, the Rails migration created it for you anyway, with auto_increment and NOT NULL.

Either one of these approaches is good, just don't use some kind of auto-increment value like you would in the MySQL environment.

Setting a data column to auto-increment does not automatically designate the column as a primary key.

CouchDB does not come with an auto-increment or sequence feature.

The Health Center agent will try to listen on port 1972 and auto-increment if that port is in use.

Use the auto-increment feature in MySQL to create unique IDs for each insertion automatically.

The Employees table has an auto-increment key column, so the value for EmployeeID is assigned automatically when you save the record.

Only one auto-increment or version column is allowed per table.

One example is when you are using auto-increment values.

it uses auto_increment primary key, which causes table-level locks in InnoDB for all MySQL versions prior to 5. 1. 21.

Includes auto increment in the table with this option is on.

So, first of all, we removed id field from the table.

Application of Auto-increment Technique in Simulation of Rod and Wire Hot Continuous Rolling

Create attributes for auto-increment columns