Serial Postgresql Example

PostgreSQL has the data types smallserial, serial and bigserial; these are not true types, but merely a notational convenience for creating unique identifier columns. These are similar to AUTO_INCREMENT property supported by some other databases. If you wish a serial column to have a unique constraint or be a primary key, it must now be specified, just like any other data type. The type name serial creates an integer columns. The type name bigserial creates a bigint column. Bigserial should be used if you anticipate the use of more than 231 identifiers over the lifetime of the table. The type name smallserial creates a smallint column.

May 23, 2015. This weekend Dr Nic shared with us a well written article discussing the shortcomings of auto-incrementing (serial) keys and an alternative approach. While discussing the article the question came up about how to go about using UUID keys in our applications and what we have to do within PostgreSQL in. Oct 10, 2011. Office 2003 Phone Activation Keygen. Default sequence to autoincrement. Insert into epictable(moobars,foobars) values('delicious moobars','2012-05-01') insert into epictable(moobars,foobars) values('worldwide interblag','2012-05-02'). Step 3, select * from your table: el@voyager$ psql -U pgadmin -d kurz_prod -c 'select * from epictable'.