diff --git a/plugins/org.jkiss.dbeaver.ext.mockdata/plugin.xml b/plugins/org.jkiss.dbeaver.ext.mockdata/plugin.xml
index 083b542bdf5a935d23159a2bf54505b31cb1d98b..c77b24cd25fdfdbead459b4bec7828ce532991ee 100644
--- a/plugins/org.jkiss.dbeaver.ext.mockdata/plugin.xml
+++ b/plugins/org.jkiss.dbeaver.ext.mockdata/plugin.xml
@@ -5,6 +5,10 @@
 
     <extension-point id="org.jkiss.dbeaver.mockGenerator" name="Mock data generator" schema="schema/org.jkiss.dbeaver.mockGenerator.exsd"/>
 
+    <extension point="org.eclipse.ui.handlers">
+        <handler commandId="org.jkiss.dbeaver.ext.mockdata.button" class="org.jkiss.dbeaver.ext.mockdata.handlers.MockDataHandler" />
+    </extension>
+
     <extension point="org.jkiss.dbeaver.tools">
         <tools>
             <tool
@@ -46,6 +50,18 @@
 
     <extension point="org.jkiss.dbeaver.mockGenerator">
 
+        <generator
+                id="booleanConstantGenerator"
+                label="Constant"
+                description="Constant boolean value"
+                class="org.jkiss.dbeaver.ext.mockdata.generator.ConstantGenerator">
+            <type kind="BOOLEAN"/>
+
+            <propertyGroup label="General">
+                <property id="value" label="Value" type="boolean" defaultValue="TRUE"/>
+            </propertyGroup>
+        </generator>
+
         <generator
                 id="booleanRandomGenerator"
                 label="Random"
@@ -67,6 +83,18 @@
             </propertyGroup>
         </generator>
 
+        <generator
+                id="dateConstantGenerator"
+                label="Constant"
+                description="Constant date value"
+                class="org.jkiss.dbeaver.ext.mockdata.generator.ConstantGenerator">
+            <type kind="DATETIME"/>
+
+            <propertyGroup label="General">
+                <property id="value" label="Value" type="string"  description="Date format: DD-MM-YYYY"/>
+            </propertyGroup>
+        </generator>
+
         <generator
                 id="dateRandomGenerator"
                 label="Random"
@@ -106,6 +134,18 @@
 -->
         </generator>
 
+        <generator
+                id="numericConstantGenerator"
+                label="Constant"
+                description="Constant numeric value"
+                class="org.jkiss.dbeaver.ext.mockdata.generator.ConstantGenerator">
+            <type kind="NUMERIC"/>
+
+            <propertyGroup label="General">
+                <property id="value" label="Value" type="numeric" defaultValue="0"/>
+            </propertyGroup>
+        </generator>
+
         <generator
                 id="numericRandomGenerator"
                 label="Random"
@@ -128,6 +168,18 @@
             </propertyGroup>
         </generator>
 
+        <generator
+                id="stringConstantGenerator"
+                label="Constant"
+                description="Constant string"
+                class="org.jkiss.dbeaver.ext.mockdata.generator.ConstantGenerator">
+            <type kind="STRING"/>
+
+            <propertyGroup label="General">
+                <property id="value" label="Value" type="string"/>
+            </propertyGroup>
+        </generator>
+
         <generator
             id="stringTextGenerator"
             label="Text"
diff --git a/plugins/org.jkiss.dbeaver.ext.mockdata/src/org/jkiss/dbeaver/ext/mockdata/generator/ConstantGenerator.java b/plugins/org.jkiss.dbeaver.ext.mockdata/src/org/jkiss/dbeaver/ext/mockdata/generator/ConstantGenerator.java
new file mode 100644
index 0000000000000000000000000000000000000000..e18850050460d4d68a192b45facf4b466fc8dc1f
--- /dev/null
+++ b/plugins/org.jkiss.dbeaver.ext.mockdata/src/org/jkiss/dbeaver/ext/mockdata/generator/ConstantGenerator.java
@@ -0,0 +1,67 @@
+/*
+ * DBeaver - Universal Database Manager
+ * Copyright (C) 2010-2017 Serge Rider (serge@jkiss.org)
+ * Copyright (C) 2010-2017 Eugene Fradkin (eugene.fradkin@gmail.com)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.jkiss.dbeaver.ext.mockdata.generator;
+
+import org.jkiss.dbeaver.DBException;
+import org.jkiss.dbeaver.model.DBPDataKind;
+import org.jkiss.dbeaver.model.runtime.DBRProgressMonitor;
+import org.jkiss.dbeaver.model.struct.DBSAttributeBase;
+import org.jkiss.dbeaver.model.struct.DBSDataManipulator;
+
+import java.io.IOException;
+import java.text.ParseException;
+import java.text.SimpleDateFormat;
+import java.util.Map;
+
+public class ConstantGenerator extends AbstractMockValueGenerator {
+
+    private static SimpleDateFormat DATE_FORMAT = new SimpleDateFormat("dd-MM-yyyy"); //$NON-NLS-1$
+
+    private Object value;
+
+    @Override
+    public void init(DBSDataManipulator container, DBSAttributeBase attribute, Map<Object, Object> properties) throws DBException {
+        super.init(container, attribute, properties);
+
+        Object value = properties.get("value"); //$NON-NLS-1$
+        if (value != null) {
+            if (attribute.getDataKind() == DBPDataKind.DATETIME) {
+                try {
+                    this.value = DATE_FORMAT.parse((String) value);
+                } catch (ParseException e) {
+                    throw new DBException("Can't parse the value '" + value + "' as a date", e);
+                }
+            } else {
+                this.value = value;
+            }
+        } else {
+            if (attribute.getDataKind() == DBPDataKind.STRING) {
+                this.value = "";
+            }
+        }
+    }
+
+    @Override
+    public Object generateOneValue(DBRProgressMonitor monitor) throws DBException, IOException {
+        if (isGenerateNULL()) {
+            return null;
+        } else {
+            return value;
+        }
+    }
+}