SQLite Reader/Writer

FME can read and write attribute data held in SQLite3 database tables. This data may not necessarily have a spatial component.

SQLite3 is a relational database system that supports SQL and stores the entire database in a single file.

SQLite Product and System Requirements

Format	FME Platform			Operating System
Reader/Writer	FME Form	FME Flow	FME Flow Hosted	Windows 64-bit	Linux	Mac
Reader	Yes	Yes	Yes	Yes	Yes	Yes
Writer	Yes	Yes	Yes	Yes	Yes	Yes

Terminology: SQLite and FME

SpatiaLite	Definition or FME Representation
table or view	feature type
row	feature
column	attribute

Reader Overview

FME considers a database dataset to be a collection of relational tables. The tables must be defined in the workspace before they can be read. All tables will be read.

The reader can also read SQLite Views.

Arbitrary WHERE clauses and joins are fully supported per table or view.

Writer Overview

The SQLite3 writer module stores attribute records into a live relational database. The SQLite3 writer provides the following capabilities:

• Transaction Support: The SQLite3 writer provides transaction support that eases the data loading process. Occasionally, a data load operation terminates prematurely due to data difficulties. The transaction support provides a mechanism for reloading corrected data without data loss or duplication.
• Table Creation: The SQLite3 writer uses the writer feature type schema information and options within the workspace to automatically create database tables as needed.
• Writer Mode Selection: The writer mode (Insert, Update, Upsert, and Delete) can be specified at three unique levels:

Writer	Writer Mode parameter
Feature Type	Feature Operation parameter
Feature	fme_db_operation attribute