diff --git a/pom.xml b/pom.xml
index abdb50e5..958e5d75 100644
--- a/pom.xml
+++ b/pom.xml
@@ -74,6 +74,12 @@
             <version>5.8.1</version>
             <scope>test</scope>
          </dependency>
+         <dependency>
+            <groupId>org.junit.jupiter</groupId>
+            <artifactId>junit-jupiter-params</artifactId>
+            <version>5.8.1</version>
+            <scope>test</scope>
+         </dependency>
          <dependency>
             <groupId>org.assertj</groupId>
             <artifactId>assertj-core</artifactId>
diff --git a/qqq-backend-core/pom.xml b/qqq-backend-core/pom.xml
index d29ad206..174a284a 100644
--- a/qqq-backend-core/pom.xml
+++ b/qqq-backend-core/pom.xml
@@ -133,6 +133,11 @@
          <artifactId>junit-jupiter-engine</artifactId>
          <scope>test</scope>
       </dependency>
+      <dependency>
+         <groupId>org.junit.jupiter</groupId>
+         <artifactId>junit-jupiter-params</artifactId>
+         <scope>test</scope>
+      </dependency>
       <dependency>
          <groupId>org.assertj</groupId>
          <artifactId>assertj-core</artifactId>
diff --git a/qqq-backend-core/src/main/java/com/kingsrook/qqq/backend/core/actions/values/QValueFormatter.java b/qqq-backend-core/src/main/java/com/kingsrook/qqq/backend/core/actions/values/QValueFormatter.java
index 50ca7d04..791986a2 100644
--- a/qqq-backend-core/src/main/java/com/kingsrook/qqq/backend/core/actions/values/QValueFormatter.java
+++ b/qqq-backend-core/src/main/java/com/kingsrook/qqq/backend/core/actions/values/QValueFormatter.java
@@ -30,6 +30,7 @@ import java.util.List;
 import java.util.Map;
 import com.kingsrook.qqq.backend.core.model.data.QRecord;
 import com.kingsrook.qqq.backend.core.model.metadata.fields.QFieldMetaData;
+import com.kingsrook.qqq.backend.core.model.metadata.fields.QFieldType;
 import com.kingsrook.qqq.backend.core.model.metadata.tables.QTableMetaData;
 import com.kingsrook.qqq.backend.core.utils.StringUtils;
 import com.kingsrook.qqq.backend.core.utils.ValueUtils;
@@ -55,6 +56,23 @@ public class QValueFormatter
     *******************************************************************************/
    public String formatValue(QFieldMetaData field, Serializable value)
    {
+      if(QFieldType.BOOLEAN.equals(field.getType()))
+      {
+         Boolean b = ValueUtils.getValueAsBoolean(value);
+         if(b == null)
+         {
+            return (null);
+         }
+         else if(b)
+         {
+            return ("Yes");
+         }
+         else
+         {
+            return ("No");
+         }
+      }
+
       return (formatValue(field.getDisplayFormat(), field.getName(), value));
    }
 
diff --git a/qqq-backend-core/src/test/java/com/kingsrook/qqq/backend/core/actions/values/QValueFormatterTest.java b/qqq-backend-core/src/test/java/com/kingsrook/qqq/backend/core/actions/values/QValueFormatterTest.java
index 341f58f3..3620ba0b 100644
--- a/qqq-backend-core/src/test/java/com/kingsrook/qqq/backend/core/actions/values/QValueFormatterTest.java
+++ b/qqq-backend-core/src/test/java/com/kingsrook/qqq/backend/core/actions/values/QValueFormatterTest.java
@@ -73,6 +73,10 @@ class QValueFormatterTest
       assertEquals("1.10%", qValueFormatter.formatValue(new QFieldMetaData().withDisplayFormat(DisplayFormat.PERCENT_POINT2), new BigDecimal("1.1")));
       assertEquals("1.12%", qValueFormatter.formatValue(new QFieldMetaData().withDisplayFormat(DisplayFormat.PERCENT_POINT2), new BigDecimal("1.12")));
 
+      assertNull(qValueFormatter.formatValue(new QFieldMetaData().withType(QFieldType.BOOLEAN), null));
+      assertEquals("Yes", qValueFormatter.formatValue(new QFieldMetaData().withType(QFieldType.BOOLEAN), true));
+      assertEquals("No", qValueFormatter.formatValue(new QFieldMetaData().withType(QFieldType.BOOLEAN), false));
+
       //////////////////////////////////////////////////
       // this one flows through the exceptional cases //
       //////////////////////////////////////////////////
diff --git a/qqq-backend-module-rdbms/src/main/java/com/kingsrook/qqq/backend/module/rdbms/actions/AbstractRDBMSAction.java b/qqq-backend-module-rdbms/src/main/java/com/kingsrook/qqq/backend/module/rdbms/actions/AbstractRDBMSAction.java
index 6e11d546..984ac552 100644
--- a/qqq-backend-module-rdbms/src/main/java/com/kingsrook/qqq/backend/module/rdbms/actions/AbstractRDBMSAction.java
+++ b/qqq-backend-module-rdbms/src/main/java/com/kingsrook/qqq/backend/module/rdbms/actions/AbstractRDBMSAction.java
@@ -183,12 +183,32 @@ public abstract class AbstractRDBMSAction implements QActionInterface
             }
             case IN:
             {
-               clause += " IN (" + values.stream().map(x -> "?").collect(Collectors.joining(",")) + ") ";
+               if(values.isEmpty())
+               {
+                  //////////////////////////////////////////////////////////////////////////////////
+                  // if there are no values, then we want a false here - so say column != column. //
+                  //////////////////////////////////////////////////////////////////////////////////
+                  clause += " != " + column;
+               }
+               else
+               {
+                  clause += " IN (" + values.stream().map(x -> "?").collect(Collectors.joining(",")) + ") ";
+               }
                break;
             }
             case NOT_IN:
             {
-               clause += " NOT IN (" + values.stream().map(x -> "?").collect(Collectors.joining(",")) + ") ";
+               if(values.isEmpty())
+               {
+                  /////////////////////////////////////////////////////////////////////////////////
+                  // if there are no values, then we want a true here - so say column == column. //
+                  /////////////////////////////////////////////////////////////////////////////////
+                  clause += " = " + column;
+               }
+               else
+               {
+                  clause += " NOT IN (" + values.stream().map(x -> "?").collect(Collectors.joining(",")) + ") ";
+               }
                break;
             }
             case STARTS_WITH:
@@ -272,7 +292,7 @@ public abstract class AbstractRDBMSAction implements QActionInterface
                clause += " IS NOT NULL ";
                if(isString(field.getType()))
                {
-                  clause += " AND " + column + " !+ '' ";
+                  clause += " AND " + column + " != '' ";
                }
                expectedNoOfParams = 0;
                break;
diff --git a/qqq-backend-module-rdbms/src/main/java/com/kingsrook/qqq/backend/module/rdbms/actions/RDBMSQueryAction.java b/qqq-backend-module-rdbms/src/main/java/com/kingsrook/qqq/backend/module/rdbms/actions/RDBMSQueryAction.java
index 2261a63c..a901eab5 100644
--- a/qqq-backend-module-rdbms/src/main/java/com/kingsrook/qqq/backend/module/rdbms/actions/RDBMSQueryAction.java
+++ b/qqq-backend-module-rdbms/src/main/java/com/kingsrook/qqq/backend/module/rdbms/actions/RDBMSQueryAction.java
@@ -121,7 +121,6 @@ public class RDBMSQueryAction extends AbstractRDBMSAction implements QueryInterf
                ResultSetMetaData metaData = resultSet.getMetaData();
                while(resultSet.next())
                {
-                  // todo - Add display values (String labels for possibleValues, formatted #'s, etc)
                   QRecord record = new QRecord();
                   record.setTableName(table.getName());
                   LinkedHashMap<String, Serializable> values = new LinkedHashMap<>();
diff --git a/qqq-backend-module-rdbms/src/test/java/com/kingsrook/qqq/backend/module/rdbms/actions/RDBMSQueryActionTest.java b/qqq-backend-module-rdbms/src/test/java/com/kingsrook/qqq/backend/module/rdbms/actions/RDBMSQueryActionTest.java
index e9b60dc6..97568eaa 100644
--- a/qqq-backend-module-rdbms/src/test/java/com/kingsrook/qqq/backend/module/rdbms/actions/RDBMSQueryActionTest.java
+++ b/qqq-backend-module-rdbms/src/test/java/com/kingsrook/qqq/backend/module/rdbms/actions/RDBMSQueryActionTest.java
@@ -375,6 +375,25 @@ public class RDBMSQueryActionTest extends RDBMSActionTest
 
 
 
+   /*******************************************************************************
+    **
+    *******************************************************************************/
+   @Test
+   public void testIsNotBlankQuery() throws QException
+   {
+      QueryInput queryInput = initQueryRequest();
+      queryInput.setFilter(new QQueryFilter()
+         .withCriteria(new QFilterCriteria()
+            .withFieldName("firstName")
+            .withOperator(QCriteriaOperator.IS_NOT_BLANK)
+         ));
+      QueryOutput queryOutput = new RDBMSQueryAction().execute(queryInput);
+      Assertions.assertEquals(5, queryOutput.getRecords().size(), "Expected # of rows");
+      Assertions.assertTrue(queryOutput.getRecords().stream().allMatch(r -> r.getValue("firstName") != null), "Should find expected rows");
+   }
+
+
+
    /*******************************************************************************
     **
     *******************************************************************************/
@@ -484,4 +503,23 @@ public class RDBMSQueryActionTest extends RDBMSActionTest
       transaction.rollback();
    }
 
+
+
+   /*******************************************************************************
+    **
+    *******************************************************************************/
+   @Test
+   void testEmptyInList() throws QException
+   {
+      QueryInput queryInput = initQueryRequest();
+      queryInput.setFilter(new QQueryFilter().withCriteria(new QFilterCriteria("firstName", QCriteriaOperator.IN, List.of())));
+      QueryOutput queryOutput = new QueryAction().execute(queryInput);
+      Assertions.assertEquals(0, queryOutput.getRecords().size(), "IN empty list should find nothing.");
+
+      queryInput.setFilter(new QQueryFilter().withCriteria(new QFilterCriteria("firstName", QCriteriaOperator.NOT_IN, List.of())));
+      queryOutput = new QueryAction().execute(queryInput);
+      Assertions.assertEquals(5, queryOutput.getRecords().size(), "NOT_IN empty list should find everything.");
+
+   }
+
 }
\ No newline at end of file