Microsoft Access (JDBC) Reader/Writer

FME Format Type Identifier	MSACCESS_JDBC_2
Reader/Writer	Both
Format Type	Database
Typical File Extensions	.mdb, .accdb

FME can read and write attribute data held in Microsoft Access database tables.

Microsoft Access (JDBC) 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

Usage Notes

The performance of this format is dependent on the amount of memory allocated to the Java Virtual Machine (JVM). The following environment variables allow you to specify memory available to Java Plugins:

FME_JVM_MIN_HEAP_SIZE

Initial heap size for initializing the JVM. If unset, the default value is 1024K.

This variable must be set in multiples of 1024 and greater than 1 MB. To indicate kilobytes, megabytes, or gigabytes, append k or K, m or M, or g or G, respectively. For example, any of these values is acceptable:

6291456

6144k

FME_JVM_MAX_HEAP_SIZE

Maximum heap size for initializing the JVM. If unset, the default value is 16384K.

This variable must be set in multiples of 1024 and greater than 2 MB. To indicate kilobytes, megabytes, or gigabytes, append k or K, m or M, or g or G, respectively. For example, any of these values is acceptable:

83886080

81920k

80m

Tip To pass additional parameters used by FME to the Java Virtual Machine, use the JAVA_TOOL_OPTIONS environment variable.

Memory Usage (applicable to writers only): Changing the value in the writer parameter Features Per Transaction can control the number of features that FME places in each transaction before a transaction is committed to the database.

FME Workbench Reader Overview

Click the Reader Parameters button and establish a Microsoft Access database connection.

FME Workbench Writer Overview

Click the Writer Parameters button and establish a Microsoft Access database connection.

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

Transaction Support: The Microsoft SQL Server 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 Microsoft SQL Server writer uses the information within the workspace to automatically create database tables as needed.

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