AF SDK Reference

AFTable.ExternalPersist Property

Save PDF

TABLE OF CONTENTS

AFTable.ExternalPersist Property

Save PDF

Last UpdatedNov 18, 2025
2 minute read

This property indicates whether the table is persisted in an external database.

Namespace: OSIsoft.AF.Asset
Assembly: OSIsoft.AFSDK (in OSIsoft.AFSDK.dll) Version: 3.1.1.1182

Syntax

public bool ExternalPersist { get; }

Public ReadOnly Property ExternalPersist As Boolean
	Get

Dim instance As AFTable
Dim value As Boolean

value = instance.ExternalPersist

public:
property bool ExternalPersist {
	bool get ();
}

member ExternalPersist : bool with get

Property Value

Type: Boolean
Indicates whether the table is persisted in an external database.

Remarks

The SDK allows the creation and editing of tables which are persisted directly into the PI Asset Database. If extensive relational database functionality is desired, or tables become very large, it may be preferable to store this data in an external relational database which is better optimized for this type of access. This property is set when using one of the LinkExternal Overload methods to set the external link.

AF SDK Reference