diff --git a/log4j-core/src/main/java/org/apache/logging/log4j/core/appender/db/jdbc/JdbcDatabaseManager.java b/log4j-core/src/main/java/org/apache/logging/log4j/core/appender/db/jdbc/JdbcDatabaseManager.java
index 9d3d870..1a279d0 100644
--- a/log4j-core/src/main/java/org/apache/logging/log4j/core/appender/db/jdbc/JdbcDatabaseManager.java
+++ b/log4j-core/src/main/java/org/apache/logging/log4j/core/appender/db/jdbc/JdbcDatabaseManager.java
@@ -546,7 +546,7 @@
         final boolean closed = true;
         try {
             if (this.connection != null && !this.connection.isClosed()) {
-                if (this.isBatchSupported && this.statement != null) {
+                if (isBuffered() && this.isBatchSupported && this.statement != null) {
                     logger().debug("Executing batch PreparedStatement {}", this.statement);
                     int[] result;
                     try {
@@ -849,7 +849,7 @@
                 }
             }
 
-            if (this.isBatchSupported) {
+            if (isBuffered() && this.isBatchSupported) {
                 this.statement.addBatch();
             } else if (this.statement.executeUpdate() == 0) {
                 throw new AppenderLoggingException(
diff --git a/src/changes/changes.xml b/src/changes/changes.xml
index 41d45a2..46a341a 100644
--- a/src/changes/changes.xml
+++ b/src/changes/changes.xml
@@ -61,6 +61,9 @@
       <action issue="LOG4J2-2660" dev="ggregory" type="update">
         Retry when JDBC throws a java.sql.SQLTransactionRollbackException in commitAndClose().
       </action>
+      <action issue="LOG4J2-2667" dev="ggregory" type="fix" due-to="Gary Gregory, Edith Chui">
+        "Values not bound to statement" when using JDBC appender, appender does not respect bufferSize="0".
+      </action>
     </release>
     <release version="2.12.0" date="2019-06-23" description="GA Release 2.12.0">
       <action issue="LOG4J2-2547" dev="rgoers" type="fix">