KB-1830 "ORA-00923: FROM keyword not found where expected" error thrown when using Oracle as the database

Jordan Horwat — Thu, 03 Jan 2019 16:24:34 GMT

Current Revision posted to Appian Knowledge Base by Jordan Horwat on 1/3/2019 4:24:34 PM

Symptoms

When using Tomcat as the application server and a supported version of Oracle as the database, the application server fails to start with the following error in the logs:

WARNING [localhost-startStop-1] org.apache.naming.NamingContext.lookup Unexpected exception resolving reference java.sql.SQLException: Cannot create PoolableConnectionFactory (ORA-00923: FROM keyword not found where expected ) at org.apache.tomcat.dbcp.dbcp2.BasicDataSource.createPoolableConnectionFactory(BasicDataSource.java:2385)

Cause

This occurs when the following line in suite.xml (located in <APPIAN_HOME>\tomcat\apache-tomcat\conf\Catalina\localhost) reads as follows:

validationQuery="SELECT 1"

Action

Change the above line in suite.xml to the following:

validationQuery="SELECT 1 FROM dual"

Make sure all other values in suite.xml are formatted as seen in the Configuring Relational Databases documentation.

Affected Versions

This article applies to Appian 18.3 and later using Oracle as the database.

Last reviewed: January 2019

Tags: database, application server, infrastructure

KB-1830 "ORA-00923: FROM keyword not found where expected" error thrown when using Oracle as the database

Jordan Horwat — Thu, 03 Jan 2019 11:23:43 GMT

Revision 3 posted to Appian Knowledge Base by Jordan Horwat on 1/3/2019 11:23:43 AM

Symptoms

When using Tomcat as the application server and a supported version of Oracle as the database, the application server fails to start with the following error in the logs:

WARNING [localhost-startStop-1] org.apache.naming.NamingContext.lookup Unexpected exception resolving reference java.sql.SQLException: Cannot create PoolableConnectionFactory (ORA-00923: FROM keyword not found where expected ) at org.apache.tomcat.dbcp.dbcp2.BasicDataSource.createPoolableConnectionFactory(BasicDataSource.java:2385)

Cause

This is caused by the following line in suite.xml located in <APPIAN_HOME>\tomcat\apache-tomcat\conf\Catalina\localhost reading as follows:

validationQuery="SELECT 1"

Action

Change the above line in suite.xml to the following:

validationQuery="SELECT 1 FROM dual"

Make sure all other values in suite.xml are formatted as seen in the Configuring Relational Databases documentation.

Affected Versions

This article applies to Appian 18.3 and later using Oracle as the database.

Last reviewed: January 2019

Tags: database, application server, infrastructure

DRAFT KB-XXXX "ORA-00923: FROM keyword not found where expected" error thrown when using Oracle as the database

Rebecca Jonas — Mon, 31 Dec 2018 17:54:46 GMT

Revision 1 posted to Appian Knowledge Base by Rebecca Jonas on 12/31/2018 5:54:46 PM

Symptoms

When using Tomcat as the application server, the application server fails to start with the following error in the logs:

WARNING [localhost-startStop-1] org.apache.naming.NamingContext.lookup Unexpected exception resolving reference java.sql.SQLException: Cannot create PoolableConnectionFactory (ORA-00923: FROM keyword not found where expected ) at org.apache.tomcat.dbcp.dbcp2.BasicDataSource.createPoolableConnectionFactory(BasicDataSource.java:2385)

Cause

This is caused by the following line in suite.xml reading as follows:

validationQuery="SELECT 1"

Action

Change it to the following:

validationQuery="SELECT 1 FROM dual"

Make sure all other values in suite.xml are formatted as seen in the Configuring Relational Databases documentation.

Affected Versions

This article applies to Appian 18.3 and later using Oracle as the database.

Last reviewed: December 2018

Tags: database, application server, infrastructure

DRAFT KB-XXXX "ORA-00923: FROM keyword not found where expected" error thrown when using Oracle as the database

Rebecca Jonas — Mon, 31 Dec 2018 13:37:23 GMT

Revision 2 posted to Appian Knowledge Base by Rebecca Jonas on 12/31/2018 1:37:23 PM

Symptoms

When using Tomcat as the application server and a supported version of Oracle as the database, the application server fails to start with the following error in the logs:

WARNING [localhost-startStop-1] org.apache.naming.NamingContext.lookup Unexpected exception resolving reference java.sql.SQLException: Cannot create PoolableConnectionFactory (ORA-00923: FROM keyword not found where expected ) at org.apache.tomcat.dbcp.dbcp2.BasicDataSource.createPoolableConnectionFactory(BasicDataSource.java:2385)

Cause

This is caused by the following line in suite.xml in <APPIAN_HOME>\tomcat\apache-tomcat\conf\Catalina\localhost reading as follows:

validationQuery="SELECT 1"

Action

Change it to the following:

validationQuery="SELECT 1 FROM dual"

Make sure all other values in suite.xml are formatted as seen in the Configuring Relational Databases documentation.

Affected Versions

This article applies to Appian 18.3 and later using Oracle as the database.

Last reviewed: December 2018

Tags: database, application server, infrastructure