Pervasive PSQL

Pervasive PSQL

Pervasive PSQL is a relational database developed by Pervasive Software mostly used as embedded database. Originally, product name was Btrieve and it was written by Doug and Nancy Woodward.

Btrieve was acquired by Novell in 1987, but spun off in 1994 as a new company called Btrieve Technogies (led by Doug and Nancy Woodward and Ron Harris). Btrieve Technologies was renamed to Pervasive Software. Pervasive’s greatest strength is reliability. It’s continuously on the market for 30 years and customers report no operational problems with it. While other databases are better-known, Pervasive, being an embedded databases, get less public attention. However, it’s extremely popular and successful. Pervasive Software has 3500 partners worldwide, including 200 OEMs.

Pervasive PSQL has two database engines - relational engine (allows you to use SQL to work with the database) and transactional engine (known also as MicroKernel Database Engine or MKDE, allows you to go directly to database and bypass SQL altogether). MKDE guarantees valid database state even in event of power loss.

Full Convert supports Pervasive PSQL database directly.

Pervasive PSQL data types we support


bigint (int8), integer (identity), smallint (smallidentity), tinyint, ubigint, uinteger, usmallint, utinyint


decimal (numeric, numericsa, numericsts), double (real, bfloat8), float (bfloat4), money ()


char (bpchar), longvarchar, nvarchar, varchar


binary, bit


date, datetime, time, timestamp

Large objects

longvarbinary, longvarchar



Export Pervasive PSQL database

It may make sense to migrate your data away from Pervasive PSQL. You may want to do it permanently or just need to share your tables with a collague in a different format.

We will copy all your tables with their data and apply indexing and relationships exactly as they are in your current Pervasive PSQL database. In a nutshell, you get exactly the same database in another database engine. Each time you run the migration, we will copy all the tables again. Of course, we have a built-in scheduler, so you can run this overnight and have a fresh database copy in the morning.

Take a look at the quick tutorials below to see how it's done.

Import data into Pervasive PSQL database

Additionally, if you want to import data on a regular basis and do not want to recreate the whole target database from scratch every time, but rather do tiny targeted sync of only changes since the last run, please use Full Convert Pro or Ultimate.

Take a look at the quick tutorials below to see how it's done.