diff --git a/bundles/org.jkiss.utils/src/org/jkiss/utils/CommonUtils.java b/bundles/org.jkiss.utils/src/org/jkiss/utils/CommonUtils.java
index 8c5bb26878ca7840fbb516c4b400dea951aba713..230705a5e8058551216cb17f4ac2c9aa844995de 100644
--- a/bundles/org.jkiss.utils/src/org/jkiss/utils/CommonUtils.java
+++ b/bundles/org.jkiss.utils/src/org/jkiss/utils/CommonUtils.java
@@ -355,6 +355,15 @@ public class CommonUtils {
         return strValue;
     }
 
+    public static String[] splitWithDelimiter(String s, String delimiter) {
+        if (s == null) {
+            return null;
+        }
+        String delimiterReplacement = "DRDRDR"; //$NON-NLS-1$
+        s = s.replace(delimiter, delimiterReplacement + delimiter);
+        return s.split(delimiterReplacement);
+    }
+
     @NotNull
     public static List<String> splitString(@Nullable String str, char delimiter) {
         if (CommonUtils.isEmpty(str)) {
diff --git a/plugins/org.jkiss.dbeaver.ext.mockdata/plugin.xml b/plugins/org.jkiss.dbeaver.ext.mockdata/plugin.xml
index 85feff7e698c8d2a7c0a65474f0fd7e2929c1da3..cb0fb52ca629089e39f881a8cb7eb097f7706cac 100644
--- a/plugins/org.jkiss.dbeaver.ext.mockdata/plugin.xml
+++ b/plugins/org.jkiss.dbeaver.ext.mockdata/plugin.xml
@@ -91,7 +91,7 @@
             <type kind="NUMERIC"/>
 
             <propertyGroup label="General">
-                <property id="start" label="Start value" type="long" defaultValue="0" description="Initial sequence value"/>
+                <property id="start" label="Start value" type="long" defaultValue="1" description="Initial sequence value"/>
                 <property id="step" label="Increment step" type="long" defaultValue="1" description="Sequence increment step"/>
                 <property id="reverse" label="Reverse order" type="boolean" defaultValue="FALSE" description="Reverse the sequence order"/>
             </propertyGroup>
diff --git a/plugins/org.jkiss.dbeaver.ext.mockdata/src/org/jkiss/dbeaver/ext/mockdata/generator/AbstractMockValueGenerator.java b/plugins/org.jkiss.dbeaver.ext.mockdata/src/org/jkiss/dbeaver/ext/mockdata/generator/AbstractMockValueGenerator.java
index c7fa96b4e2d74edd3d4ebadd47e945f81f57bc19..ed5b2aeaff1823bc49bdc281d62cb5e1875f9e6d 100644
--- a/plugins/org.jkiss.dbeaver.ext.mockdata/src/org/jkiss/dbeaver/ext/mockdata/generator/AbstractMockValueGenerator.java
+++ b/plugins/org.jkiss.dbeaver.ext.mockdata/src/org/jkiss/dbeaver/ext/mockdata/generator/AbstractMockValueGenerator.java
@@ -128,4 +128,39 @@ public abstract class AbstractMockValueGenerator implements MockValueGenerator {
         return column.getValueEnumeration(session, null, number);
     }
 
+    protected Boolean getBooleanProperty(Map<Object, Object> properties, String propName) {
+        Object prop = properties.get(propName);
+        if (prop != null) {
+            if (prop instanceof Boolean) {
+                return  (Boolean) prop;
+            } else {
+                return Boolean.valueOf(prop.toString());
+            }
+        }
+        return null;
+    }
+
+    protected Double getDoubleProperty(Map<Object, Object> properties, String propName) {
+        Object prop = properties.get(propName);
+        if (prop != null) {
+            if (prop instanceof Double) {
+                return  (Double) prop;
+            } else {
+                return Double.valueOf(prop.toString());
+            }
+        }
+        return null;
+    }
+
+    protected Long getLongProperty(Map<Object, Object> properties, String propName) {
+        Object prop = properties.get(propName);
+        if (prop != null) {
+            if (prop instanceof Long) {
+                return  (Long) prop;
+            } else {
+                return Long.valueOf(prop.toString());
+            }
+        }
+        return null;
+    }
 }
diff --git a/plugins/org.jkiss.dbeaver.ext.mockdata/src/org/jkiss/dbeaver/ext/mockdata/generator/NumericSequenceGenerator.java b/plugins/org.jkiss.dbeaver.ext.mockdata/src/org/jkiss/dbeaver/ext/mockdata/generator/NumericSequenceGenerator.java
index a9fe12da9be90e936240e92b02c1dcd0f057ecdb..30d55ad31234e37c323b36c949e52c261acb5b2c 100644
--- a/plugins/org.jkiss.dbeaver.ext.mockdata/src/org/jkiss/dbeaver/ext/mockdata/generator/NumericSequenceGenerator.java
+++ b/plugins/org.jkiss.dbeaver.ext.mockdata/src/org/jkiss/dbeaver/ext/mockdata/generator/NumericSequenceGenerator.java
@@ -28,22 +28,22 @@ import java.util.Map;
 
 public class NumericSequenceGenerator extends AbstractMockValueGenerator {
 
-    private long start = 0;
-    private long step = 0;
+    private long start = 1;
+    private long step = 1;
     private boolean reverse = false;
 
     @Override
     public void init(DBSDataManipulator container, DBSAttributeBase attribute, Map<Object, Object> properties) throws DBException {
         super.init(container, attribute, properties);
 
-        Long start = (Long) properties.get("start"); //$NON-NLS-1$
-        if (start != null) {
-            this.start = start;
+        Long startProperty = getLongProperty(properties, "start"); //$NON-NLS-1$
+        if (startProperty != null) {
+            this.start = startProperty;
         }
 
-        Long step = (Long) properties.get("step"); //$NON-NLS-1$
-        if (step != null) {
-            this.step = step;
+        Long stepProperty = getLongProperty(properties, "step"); //$NON-NLS-1$
+        if (stepProperty != null) {
+            this.step = stepProperty;
         }
 
         Boolean reverse = (Boolean) properties.get("reverse"); //$NON-NLS-1$