My Oracle Support Banner

Slow Performance Querying SQL SERVER Tables From Oracle Using DG4MSQL (Doc ID 2066796.1)

Last updated on SEPTEMBER 20, 2019

Applies to:

Oracle Database Gateway for SQL Server - Version 11.2.0.1 and later
Information in this document applies to any platform.

Symptoms

When performing a query from Oracle via Oracle Database Gateway for SQL*Server (DG4MSQL) some queries hang or have slow performance.

Example: 

  
Running the same query directly in SQL*Server also hangs or is slow.  By adding the NOLOCK command on the SQL*Server side then
the query returns in milliseconds.

Cause

To view full details, sign in with your My Oracle Support account.

Don't have a My Oracle Support account? Click to get started!


In this Document
Symptoms
Cause
Solution
References


My Oracle Support provides customers with access to over a million knowledge articles and a vibrant support community of peers and Oracle experts.