#11533 Query variables: variables panel + model

plugins/org.jkiss.dbeaver.model.sql/src/org/jkiss/dbeaver/model/sql/SQLScriptContext.java

@@ -30,17 +30,14 @@ import org.jkiss.utils.CommonUtils;
 import java.io.File;
 import java.io.PrintWriter;
 import java.io.Writer;
-import java.util.HashMap;
-import java.util.LinkedHashMap;
-import java.util.List;
-import java.util.Map;
+import java.util.*;
 
 /**
  * SQL script execution context
  */
 public class SQLScriptContext implements DBCScriptContext {
 
-    private final Map<String, Object> variables = new HashMap<>();
+    private final Map<String, VariableInfo> variables = new LinkedHashMap<>();
     private final Map<String, Object> defaultParameters = new HashMap<>();
     private final Map<String, Object> pragmas = new HashMap<>();
     private Map<String, Object> statementPragmas;
@@ -93,16 +90,16 @@ public class SQLScriptContext implements DBCScriptContext {
 
     @Override
     public Object getVariable(String name) {
-        Object value = variables.get(name);
-        if (value == null && parentContext != null) {
-            value = parentContext.getVariable(name);
+        VariableInfo variableInfo = variables.get(name);
+        if (variableInfo == null && parentContext != null) {
+            return parentContext.getVariable(name);
         }
-        return value;
+        return variableInfo == null ? null : variableInfo.value;
     }
 
     @Override
     public void setVariable(String name, Object value) {
-        variables.put(name, value);
+        variables.put(name, new VariableInfo(name, value, VariableType.VARIABLE));
         if (parentContext != null) {
             parentContext.setVariable(name, value);
         }
@@ -116,9 +113,18 @@ public class SQLScriptContext implements DBCScriptContext {
         }
     }
 
+    @Override
+    public List<VariableInfo> getVariables() {
+        return new ArrayList<>(variables.values());
+    }
+
     public void setVariables(Map<String, Object> variables) {
         this.variables.clear();
-        this.variables.putAll(variables);
+        for (Map.Entry<String, Object> v : variables.entrySet()) {
+            this.variables.put(
+                v.getKey(),
+                new VariableInfo(v.getKey(), v.getValue(), VariableType.VARIABLE));
+        }
     }
 
     public Object getParameterDefaultValue(String name) {
@@ -220,6 +226,8 @@ public class SQLScriptContext implements DBCScriptContext {
                 Object varValue = variables.get(parameter.getVarName());
                 if (varValue == null) {
                     varValue = defaultParameters.get(parameter.getVarName());
+                } else {
+                    varValue = ((VariableInfo)varValue).value;
                 }
                 if (varValue != null) {
                     parameter.setValue(CommonUtils.toString(varValue));
@@ -233,9 +241,11 @@ public class SQLScriptContext implements DBCScriptContext {
     }
 
     public Map<String, Object> getAllParameters() {
-        Map<String, Object> params = new LinkedHashMap<>();
+        Map<String, Object> params = new LinkedHashMap<>(defaultParameters.size() + variables.size());
         params.putAll(defaultParameters);
-        params.putAll(variables);
+        for (Map.Entry<String, VariableInfo> v : variables.entrySet()) {
+            params.put(v.getKey(), v.getValue().value);
+        }
         return params;
     }
 

plugins/org.jkiss.dbeaver.model.sql/src/org/jkiss/dbeaver/model/sql/registry/SQLQueryParameterRegistry.java

@@ -28,9 +28,7 @@ import org.jkiss.utils.xml.XMLException;
 import org.xml.sax.Attributes;
 
 import java.io.*;
-import java.util.LinkedHashMap;
-import java.util.Locale;
-import java.util.Map;
+import java.util.*;
 
 public class SQLQueryParameterRegistry
 {
@@ -65,6 +63,10 @@ public class SQLQueryParameterRegistry
         return registry;
     }
 
+    public List<ParameterInfo> getAllParameters() {
+        return new ArrayList<>(parameterMap.values());
+    }
+
     public ParameterInfo getParameter(String name)
     {
         return parameterMap.get(name.toUpperCase(Locale.ENGLISH));

plugins/org.jkiss.dbeaver.model/src/org/jkiss/dbeaver/model/exec/DBCScriptContext.java

@@ -17,6 +17,7 @@
 package org.jkiss.dbeaver.model.exec;
 
 import java.io.PrintWriter;
+import java.util.List;
 
 /**
  * Script context.
@@ -24,6 +25,34 @@ import java.io.PrintWriter;
  */
 public interface DBCScriptContext {
 
+    enum VariableType {
+        PARAMETER("Parameter"),
+        VARIABLE("Variable"),
+        QUERY("Query");
+
+        private final String title;
+
+        VariableType(String title) {
+            this.title = title;
+        }
+
+        public String getTitle() {
+            return title;
+        }
+    }
+
+    class VariableInfo {
+        public String name;
+        public Object value;
+        public VariableType type;
+
+        public VariableInfo(String name, Object value, VariableType type) {
+            this.name = name;
+            this.value = value;
+            this.type = type;
+        }
+    }
+
     boolean hasVariable(String name);
 
     Object getVariable(String name);
@@ -32,6 +61,8 @@ public interface DBCScriptContext {
 
     void removeVariable(String name);
 
+    List<VariableInfo> getVariables();
+
     <T> T getData(String key);
 
     void setData(String key, Object value);

plugins/org.jkiss.dbeaver.ui.editors.sql/OSGI-INF/l10n/bundle.properties

@@ -93,6 +93,8 @@ command.org.jkiss.dbeaver.ui.editors.sql.show.output.name=Show server output
 command.org.jkiss.dbeaver.ui.editors.sql.show.output.description=Show server output console
 command.org.jkiss.dbeaver.ui.editors.sql.show.log.name=Show execution log
 command.org.jkiss.dbeaver.ui.editors.sql.show.log.description=Show SQL execution log
+command.org.jkiss.dbeaver.ui.editors.sql.show.variables.name=Show SQL variables
+command.org.jkiss.dbeaver.ui.editors.sql.show.variables.description=Show active SQL variables
 
 command.org.jkiss.dbeaver.ui.editors.sql.toggle.result.panel.name=Toggle results panel
 command.org.jkiss.dbeaver.ui.editors.sql.toggle.result.panel.description=Show/hide results panel

plugins/org.jkiss.dbeaver.ui.editors.sql/plugin.xml

@@ -236,6 +236,7 @@
         <command id="org.jkiss.dbeaver.ui.editors.sql.query.prev" name="%command.org.jkiss.dbeaver.ui.editors.sql.query.prev.name" description="%command.org.jkiss.dbeaver.ui.editors.sql.query.prev.description" categoryId="org.jkiss.dbeaver.core.sql"/>
         <command id="org.jkiss.dbeaver.ui.editors.sql.show.output" name="%command.org.jkiss.dbeaver.ui.editors.sql.show.output.name" description="%command.org.jkiss.dbeaver.ui.editors.sql.show.output.description" categoryId="org.jkiss.dbeaver.core.sql"/>
         <command id="org.jkiss.dbeaver.ui.editors.sql.show.log" name="%command.org.jkiss.dbeaver.ui.editors.sql.show.log.name" description="%command.org.jkiss.dbeaver.ui.editors.sql.show.log.description" categoryId="org.jkiss.dbeaver.core.sql"/>
+        <command id="org.jkiss.dbeaver.ui.editors.sql.show.variables" name="%command.org.jkiss.dbeaver.ui.editors.sql.show.variables.name" description="%command.org.jkiss.dbeaver.ui.editors.sql.show.variables.description" categoryId="org.jkiss.dbeaver.core.sql"/>
         <command id="org.jkiss.dbeaver.ui.editors.sql.toggle.result.panel" name="%command.org.jkiss.dbeaver.ui.editors.sql.toggle.result.panel.name" description="%command.org.jkiss.dbeaver.ui.editors.sql.toggle.result.panel.description" categoryId="org.jkiss.dbeaver.core.sql"/>
         <command id="org.jkiss.dbeaver.ui.editors.sql.maximize.result.panel" name="%command.org.jkiss.dbeaver.ui.editors.sql.maximize.result.panel.name" description="%command.org.jkiss.dbeaver.ui.editors.sql.maximize.result.panel.description" categoryId="org.jkiss.dbeaver.core.sql"/>
         <command id="org.jkiss.dbeaver.ui.editors.sql.switch.panel" name="%command.org.jkiss.dbeaver.ui.editors.sql.switch.panel.name" description="%command.org.jkiss.dbeaver.ui.editors.sql.switch.panel.description" categoryId="org.jkiss.dbeaver.core.sql"/>
@@ -282,6 +283,7 @@
 
         <image commandId="org.jkiss.dbeaver.ui.editors.sql.show.output" icon="platform:/plugin/org.jkiss.dbeaver.ui/icons/sql/page_output.png"/>
         <image commandId="org.jkiss.dbeaver.ui.editors.sql.show.log" icon="platform:/plugin/org.jkiss.dbeaver.ui/icons/sql/page_error.png"/>
+        <image commandId="org.jkiss.dbeaver.ui.editors.sql.show.variables" icon="platform:/plugin/org.jkiss.dbeaver.ui/icons/sql/variables.png"/>
 
         <image commandId="org.jkiss.dbeaver.ui.editors.sql.toggleLayout" icon="platform:/plugin/org.jkiss.dbeaver.ui/icons/misc/rotate.png"/>
     </extension>
@@ -457,6 +459,9 @@
         <handler commandId="org.jkiss.dbeaver.ui.editors.sql.show.log" class="org.jkiss.dbeaver.ui.editors.sql.handlers.SQLEditorHandlerSwitchPanel">
             <enabledWhen><reference definitionId="org.jkiss.dbeaver.core.ui.sql.editor"/></enabledWhen>
         </handler>
+        <handler commandId="org.jkiss.dbeaver.ui.editors.sql.show.variables" class="org.jkiss.dbeaver.ui.editors.sql.handlers.SQLEditorHandlerSwitchPanel">
+            <enabledWhen><reference definitionId="org.jkiss.dbeaver.core.ui.sql.editor"/></enabledWhen>
+        </handler>
         <handler commandId="org.jkiss.dbeaver.ui.editors.sql.toggle.result.panel" class="org.jkiss.dbeaver.ui.editors.sql.handlers.SQLEditorHandlerToggleResultsPanel">
             <enabledWhen><reference definitionId="org.jkiss.dbeaver.core.ui.sql.editor"/></enabledWhen>
         </handler>

plugins/org.jkiss.dbeaver.ui.editors.sql/src/org/jkiss/dbeaver/ui/editors/sql/SQLEditor.java

@@ -101,6 +101,7 @@ import org.jkiss.dbeaver.ui.editors.sql.plan.ExplainPlanViewer;
 import org.jkiss.dbeaver.ui.editors.sql.registry.SQLPresentationDescriptor;
 import org.jkiss.dbeaver.ui.editors.sql.registry.SQLPresentationPanelDescriptor;
 import org.jkiss.dbeaver.ui.editors.sql.registry.SQLPresentationRegistry;
+import org.jkiss.dbeaver.ui.editors.sql.variables.SQLVariablesPanel;
 import org.jkiss.dbeaver.ui.editors.text.ScriptPositionColumn;
 import org.jkiss.dbeaver.ui.navigator.INavigatorModelView;
 import org.jkiss.dbeaver.utils.GeneralUtils;
@@ -140,12 +141,13 @@ public class SQLEditor extends SQLEditorBase implements
     private static final String EMBEDDED_BINDING_PREFIX = "-- CONNECTION: ";
     private static final Pattern EMBEDDED_BINDING_PREFIX_PATTERN = Pattern.compile("--\\s*CONNECTION:\\s*(.+)", Pattern.CASE_INSENSITIVE);
 
-    private static Image IMG_DATA_GRID = DBeaverIcons.getImage(UIIcon.SQL_PAGE_DATA_GRID);
-    private static Image IMG_DATA_GRID_LOCKED = DBeaverIcons.getImage(UIIcon.SQL_PAGE_DATA_GRID_LOCKED);
-    private static Image IMG_EXPLAIN_PLAN = DBeaverIcons.getImage(UIIcon.SQL_PAGE_EXPLAIN_PLAN);
-    private static Image IMG_LOG = DBeaverIcons.getImage(UIIcon.SQL_PAGE_LOG);
-    private static Image IMG_OUTPUT = DBeaverIcons.getImage(UIIcon.SQL_PAGE_OUTPUT);
-    private static Image IMG_OUTPUT_ALERT = DBeaverIcons.getImage(UIIcon.SQL_PAGE_OUTPUT_ALERT);
+    private static final Image IMG_DATA_GRID = DBeaverIcons.getImage(UIIcon.SQL_PAGE_DATA_GRID);
+    private static final Image IMG_DATA_GRID_LOCKED = DBeaverIcons.getImage(UIIcon.SQL_PAGE_DATA_GRID_LOCKED);
+    private static final Image IMG_EXPLAIN_PLAN = DBeaverIcons.getImage(UIIcon.SQL_PAGE_EXPLAIN_PLAN);
+    private static final Image IMG_LOG = DBeaverIcons.getImage(UIIcon.SQL_PAGE_LOG);
+    private static final Image IMG_VARIABLES = DBeaverIcons.getImage(UIIcon.SQL_VARIABLES);
+    private static final Image IMG_OUTPUT = DBeaverIcons.getImage(UIIcon.SQL_PAGE_OUTPUT);
+    private static final Image IMG_OUTPUT_ALERT = DBeaverIcons.getImage(UIIcon.SQL_PAGE_OUTPUT_ALERT);
 
 //    private static final String TOOLBAR_CONTRIBUTION_ID = "toolbar:org.jkiss.dbeaver.ui.editors.sql.toolbar.side";
 //    private static final String TOOLBAR_GROUP_TOP = "top";
@@ -176,6 +178,7 @@ public class SQLEditor extends SQLEditorBase implements
 
     private SQLLogPanel logViewer;
     private SQLEditorOutputConsoleViewer outputViewer;
+    private SQLVariablesPanel variablesViewer;
 
     private volatile QueryProcessor curQueryProcessor;
     private final List<QueryProcessor> queryProcessors = new ArrayList<>();
@@ -270,6 +273,10 @@ public class SQLEditor extends SQLEditorBase implements
         return null;
     }
 
+    public SQLScriptContext getGlobalScriptContext() {
+        return globalScriptContext;
+    }
+
     @Nullable
     public DBPProject getProject()
     {
@@ -911,15 +918,19 @@ public class SQLEditor extends SQLEditorBase implements
             SWT.LEFT | SWT.CHECK,
             getSite(),
             SQLEditorCommands.CMD_SQL_SHOW_OUTPUT,
-            true)
-            .setText("Out");
+            false);
         VerticalButton.create(
             sideToolBar,
             SWT.LEFT | SWT.CHECK,
             getSite(),
             SQLEditorCommands.CMD_SQL_SHOW_LOG,
-            true)
-            .setText("Log");
+            false);
+        VerticalButton.create(
+            sideToolBar,
+            SWT.LEFT | SWT.CHECK,
+            getSite(),
+            SQLEditorCommands.CMD_SQL_SHOW_VARIABLES,
+            false);
 
 /*
         sideToolBar.add(new GroupMarker(TOOLBAR_GROUP_PANELS));
@@ -1075,6 +1086,7 @@ public class SQLEditor extends SQLEditorBase implements
         // Extra views
         //planView = new ExplainPlanViewer(this, resultTabs);
         logViewer = new SQLLogPanel(sqlExtraPanelFolder, this);
+        variablesViewer = new SQLVariablesPanel(sqlExtraPanelFolder, this);
         outputViewer = new SQLEditorOutputConsoleViewer(getSite(), sqlExtraPanelFolder, SWT.NONE);
 
         // Create results tab
@@ -1365,6 +1377,19 @@ public class SQLEditor extends SQLEditorBase implements
             null);
     }
 
+    public void showVariablesPanel() {
+        showExtraView(
+            SQLEditorCommands.CMD_SQL_SHOW_VARIABLES,
+            SQLEditorMessages.editors_sql_variables,
+            SQLEditorMessages.editors_sql_variables_tip,
+            IMG_VARIABLES,
+            variablesViewer,
+            null);
+        UIUtils.asyncExec(() -> {
+            variablesViewer.refreshVariables();
+        });
+    }
+
     public <T> T getExtraPresentationPanel(Class<T> panelClass) {
         for (CTabItem tabItem : resultTabs.getItems()) {
             if (tabItem.getData() instanceof SQLEditorPresentationPanel && tabItem.getData().getClass() == panelClass) {

plugins/org.jkiss.dbeaver.ui.editors.sql/src/org/jkiss/dbeaver/ui/editors/sql/SQLEditorCommands.java

@@ -41,6 +41,7 @@ public interface SQLEditorCommands
     String CMD_SQL_SWITCH_PANEL = "org.jkiss.dbeaver.ui.editors.sql.switch.panel";
     String CMD_SQL_SHOW_OUTPUT = "org.jkiss.dbeaver.ui.editors.sql.show.output";
     String CMD_SQL_SHOW_LOG = "org.jkiss.dbeaver.ui.editors.sql.show.log";
+    String CMD_SQL_SHOW_VARIABLES = "org.jkiss.dbeaver.ui.editors.sql.show.variables";
     String CMD_SQL_EDITOR_MAXIMIZE_PANEL = "org.jkiss.dbeaver.ui.editors.sql.maximize.result.panel";
     String CMD_SQL_EDITOR_CLOSE_TAB = "org.jkiss.dbeaver.ui.editors.sql.close.tab";
     String CMD_SQL_ASSIST_TEMPLATES = "org.jkiss.dbeaver.ui.editors.sql.assist.templates"; //$NON-NLS-1$

plugins/org.jkiss.dbeaver.ui.editors.sql/src/org/jkiss/dbeaver/ui/editors/sql/handlers/SQLEditorHandlerSwitchPanel.java

@@ -48,6 +48,9 @@ public class SQLEditorHandlerSwitchPanel extends AbstractHandler {
             case SQLEditorCommands.CMD_SQL_SHOW_LOG:
                 editor.showExecutionLogPanel();
                 break;
+            case SQLEditorCommands.CMD_SQL_SHOW_VARIABLES:
+                editor.showVariablesPanel();
+                break;
         }
         return null;
     }

plugins/org.jkiss.dbeaver.ui.editors.sql/src/org/jkiss/dbeaver/ui/editors/sql/internal/SQLEditorMessages.java

@@ -65,6 +65,8 @@ public class SQLEditorMessages extends NLS {
     public static String editors_sql_error_execution_plan_title;
     public static String editors_sql_execution_log;
     public static String editors_sql_execution_log_tip;
+    public static String editors_sql_variables;
+    public static String editors_sql_variables_tip;
     public static String editors_sql_explain_plan;
     public static String editors_sql_output;
     public static String editors_sql_output_tip;

plugins/org.jkiss.dbeaver.ui.editors.sql/src/org/jkiss/dbeaver/ui/editors/sql/internal/SQLEditorMessages.properties

@@ -41,6 +41,8 @@ editors_sql_error_execution_plan_message = Can not explain execution plan
 editors_sql_error_execution_plan_title = Execution plan
 editors_sql_execution_log = Execution Log
 editors_sql_execution_log_tip = SQL query execution log
+editors_sql_variables = Variables
+editors_sql_variables_tip = Active SQL variables
 editors_sql_explain_plan = Explain Plan
 editors_sql_job_execute_query = Execute query
 editors_sql_job_execute_script = Execute script

plugins/org.jkiss.dbeaver.ui.editors.sql/src/org/jkiss/dbeaver/ui/editors/sql/variables/SQLVariablesPanel.java

+/*
+ * DBeaver - Universal Database Manager
+ * Copyright (C) 2010-2021 DBeaver Corp and others
+ *
+ * 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.ui.editors.sql.variables;
+
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.custom.SashForm;
+import org.eclipse.swt.custom.StyledText;
+import org.eclipse.swt.events.SelectionAdapter;
+import org.eclipse.swt.events.SelectionEvent;
+import org.eclipse.swt.layout.FillLayout;
+import org.eclipse.swt.layout.GridData;
+import org.eclipse.swt.widgets.*;
+import org.eclipse.ui.PartInitException;
+import org.eclipse.ui.texteditor.ITextEditorActionConstants;
+import org.jkiss.code.Nullable;
+import org.jkiss.dbeaver.Log;
+import org.jkiss.dbeaver.model.exec.DBCExecutionContext;
+import org.jkiss.dbeaver.model.exec.DBCScriptContext;
+import org.jkiss.dbeaver.model.sql.SQLScriptContext;
+import org.jkiss.dbeaver.model.sql.registry.SQLQueryParameterRegistry;
+import org.jkiss.dbeaver.ui.UIIcon;
+import org.jkiss.dbeaver.ui.UIUtils;
+import org.jkiss.dbeaver.ui.editors.StringEditorInput;
+import org.jkiss.dbeaver.ui.editors.SubEditorSite;
+import org.jkiss.dbeaver.ui.editors.sql.SQLEditor;
+import org.jkiss.dbeaver.ui.editors.sql.SQLEditorBase;
+import org.jkiss.dbeaver.utils.GeneralUtils;
+import org.jkiss.utils.CommonUtils;
+
+import java.util.List;
+
+/**
+ * SQLVariablesPanel
+ */
+public class SQLVariablesPanel extends Composite {
+
+    static protected final Log log = Log.getLog(SQLVariablesPanel.class);
+
+    private final SQLEditor mainEditor;
+    private SQLEditorBase valueEditor;
+    private Table varsTable;
+    private Button showParametersCheck;
+
+    public SQLVariablesPanel(Composite parent, SQLEditor editor)
+    {
+        super(parent, SWT.NONE);
+        this.mainEditor = editor;
+
+        setLayout(new FillLayout());
+    }
+
+    private void createControls() {
+        SashForm sash = new SashForm(this, SWT.VERTICAL);
+
+        // Variables table
+        {
+            Composite varsGroup = UIUtils.createPlaceholder(sash, 1);
+
+            varsTable = new Table(varsGroup, SWT.SINGLE | SWT.FULL_SELECTION);
+            varsTable.setHeaderVisible(true);
+            varsTable.setLinesVisible(true);
+            varsTable.setLayoutData(new GridData(GridData.FILL_BOTH));
+
+            UIUtils.createTableColumn(varsTable, SWT.LEFT, "Variable");
+            UIUtils.createTableColumn(varsTable, SWT.LEFT, "Value");
+            UIUtils.createTableColumn(varsTable, SWT.LEFT, "Type");
+
+            Composite controlPanel = UIUtils.createComposite(varsGroup, 2);
+            controlPanel.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
+
+            ToolBar buttonsBar = new ToolBar(controlPanel, SWT.HORIZONTAL);
+            buttonsBar.setLayoutData(new GridData(GridData.FILL_VERTICAL));
+
+            ToolItem addButton = UIUtils.createToolItem(buttonsBar, "Add variable", UIIcon.ADD, new SelectionAdapter() {
+
+            });
+            ToolItem removeButton = UIUtils.createToolItem(buttonsBar, "Delete variable", UIIcon.DELETE, new SelectionAdapter() {
+
+            });
+
+            showParametersCheck = UIUtils.createCheckbox(controlPanel, "Show parameters", "Show query parameters", false, 1);
+            showParametersCheck.addSelectionListener(new SelectionAdapter() {
+                @Override
+                public void widgetSelected(SelectionEvent e) {
+                    refreshVariables();
+                }
+            });
+
+            varsTable.addSelectionListener(new SelectionAdapter() {
+                @Override
+                public void widgetSelected(SelectionEvent e) {
+                    editCurrentVariable();
+                }
+            });
+
+            //sash.addListener(SWT.Resize, event -> UIUtils.packColumns(varsTable, true));
+        }
+
+        // Editor
+        {
+            Composite editorGroup = UIUtils.createPlaceholder(sash, 1);
+
+            UIUtils.createControlLabel(editorGroup, "Value");
+
+            Composite editorPH = new Composite(editorGroup, SWT.NONE);
+            GridData gd = new GridData(GridData.FILL_BOTH);
+            gd.verticalIndent = 3;
+            gd.horizontalSpan = 1;
+            gd.minimumHeight = 100;
+            gd.minimumWidth = 100;
+            editorPH.setLayoutData(gd);
+            editorPH.setLayout(new FillLayout());
+
+            valueEditor = new SQLEditorBase() {
+                @Nullable
+                @Override
+                public DBCExecutionContext getExecutionContext() {
+                    return mainEditor.getExecutionContext();
+                }
+
+                @Override
+                public void createPartControl(Composite parent) {
+                    super.createPartControl(parent);
+                    getAction(ITextEditorActionConstants.CONTEXT_PREFERENCES).setEnabled(false);
+                }
+
+                @Override
+                public boolean isFoldingEnabled() {
+                    return false;
+                }
+            };
+            try {
+                valueEditor.init(new SubEditorSite(mainEditor.getSite()),
+                    new StringEditorInput("Variable value", "", true, GeneralUtils.getDefaultFileEncoding()));
+            } catch (PartInitException e) {
+                log.error(e);
+            }
+            valueEditor.createPartControl(editorPH);
+            valueEditor.reloadSyntaxRules();
+
+            //valueEditor.getEditorControl().setEnabled(false);
+
+            valueEditor.getEditorControlWrapper().setLayoutData(new GridData(GridData.FILL_BOTH));
+        }
+    }
+
+    private void editCurrentVariable() {
+        int selectionIndex = varsTable.getSelectionIndex();
+        StyledText editorControl = valueEditor.getEditorControl();
+        if (editorControl == null) {
+            return;
+        }
+        if (selectionIndex >= 0) {
+            TableItem item = varsTable.getItem(selectionIndex);
+            DBCScriptContext.VariableInfo variable = (DBCScriptContext.VariableInfo) item.getData();
+
+            StringEditorInput sqlInput = new StringEditorInput(
+                "Variable " + variable.name,
+                CommonUtils.toString(variable.value),
+                false,
+                GeneralUtils.DEFAULT_ENCODING
+                );
+            valueEditor.setInput(sqlInput);
+            valueEditor.reloadSyntaxRules();
+        }
+    }
+
+    public void refreshVariables() {
+        if (varsTable == null) {
+            createControls();
+        }
+
+        SQLScriptContext context = mainEditor.getGlobalScriptContext();
+
+        varsTable.removeAll();
+        List<DBCScriptContext.VariableInfo> variables = context.getVariables();
+        if (showParametersCheck.getSelection()) {
+            for (SQLQueryParameterRegistry.ParameterInfo param : SQLQueryParameterRegistry.getInstance().getAllParameters()) {
+                if (context.hasVariable(param.name)) {
+                    continue;
+                }
+                Object parameterValue = context.getParameterDefaultValue(param.name);
+                if (parameterValue == null) {
+                    parameterValue = param.value;
+                }
+                variables.add(new DBCScriptContext.VariableInfo(
+                    param.name,
+                    parameterValue,
+                    DBCScriptContext.VariableType.PARAMETER));
+            }
+        }
+        for (DBCScriptContext.VariableInfo variable : variables) {
+            TableItem ti = new TableItem(varsTable, SWT.NONE);
+            ti.setText(0, variable.name);
+            ti.setText(1, CommonUtils.toString(variable.value));
+            ti.setText(2, variable.type.getTitle());
+            ti.setData(variable);
+        }
+
+        UIUtils.packColumns(varsTable, true);
+
+        valueEditor.setInput(new StringEditorInput(
+            "Variable",
+            "",
+            true,
+            GeneralUtils.DEFAULT_ENCODING
+        ));
+        valueEditor.reloadSyntaxRules();
+    }
+
+}
\ No newline at end of file

plugins/org.jkiss.dbeaver.ui/src/org/jkiss/dbeaver/ui/UIIcon.java

@@ -190,6 +190,7 @@ public class UIIcon {
     public static final DBIcon SQL_VALIDATE = new DBIcon("sql_validate", "sql/sql_validate.png"); //$NON-NLS-1$ //$NON-NLS-2$
     public static final DBIcon SQL_PREVIEW = new DBIcon("sql_preview", "sql/sql_preview.png"); //$NON-NLS-1$ //$NON-NLS-2$
     public static final DBIcon SQL_TEXT = new DBIcon("sql_text", "sql/sql_text.png"); //$NON-NLS-1$ //$NON-NLS-2$
+    public static final DBIcon SQL_VARIABLES = new DBIcon("sql_variables", "sql/variables.png"); //$NON-NLS-1$ //$NON-NLS-2$
 
     public static final DBIcon SQL_PAGE_DATA_GRID = new DBIcon("sql/page_data_grid.png"); //$NON-NLS-1$
     public static final DBIcon SQL_PAGE_DATA_GRID_LOCKED = new DBIcon("sql/page_data_grid_locked.png"); //$NON-NLS-1$