diff --git a/src/main/java/com/alibaba/druid/mapping/MappingEngine.java b/src/main/java/com/alibaba/druid/mapping/MappingEngine.java
index 78f89d11bc..6a0d1463f1 100644
--- a/src/main/java/com/alibaba/druid/mapping/MappingEngine.java
+++ b/src/main/java/com/alibaba/druid/mapping/MappingEngine.java
@@ -119,11 +119,15 @@ public class MappingEngine {
     public SQLDeleteStatement explainToDeleteSQLObject(String sql) {
         return provider.explainToDeleteSQLObject(this, sql);
     }
-
+    
     public String explainToDeleteSQL(String sql) {
+        return explainToDeleteSQL(sql, new MappingContext());
+    }
+
+    public String explainToDeleteSQL(String sql, MappingContext context) {
         SQLDeleteStatement stmt = explainToDeleteSQLObject(sql);
 
-        MappingVisitor visitor = this.createMappingVisitor(Collections.emptyList());
+        MappingVisitor visitor = this.createMappingVisitor(context);
         stmt.accept(visitor);
         visitor.afterResolve();
         afterResole(visitor);
@@ -142,11 +146,15 @@ public class MappingEngine {
     public SQLUpdateStatement explainToUpdateSQLObject(String sql) {
         return provider.explainToUpdateSQLObject(this, sql);
     }
-
+    
     public String explainToUpdateSQL(String sql) {
+        return explainToUpdateSQL(sql, new MappingContext());
+    }
+
+    public String explainToUpdateSQL(String sql, MappingContext context) {
         SQLUpdateStatement stmt = explainToUpdateSQLObject(sql);
 
-        MappingVisitor visitor = this.createMappingVisitor(Collections.emptyList());
+        MappingVisitor visitor = this.createMappingVisitor(context);
         stmt.accept(visitor);
         visitor.afterResolve();
         afterResole(visitor);
@@ -157,11 +165,15 @@ public class MappingEngine {
     public SQLInsertStatement explainToInsertSQLObject(String sql) {
         return provider.explainToInsertSQLObject(this, sql);
     }
-
+    
     public String explainToInsertSQL(String sql) {
+        return explainToInsertSQL(sql, new MappingContext());
+    }
+
+    public String explainToInsertSQL(String sql, MappingContext context) {
         SQLInsertStatement stmt = explainToInsertSQLObject(sql);
 
-        MappingVisitor visitor = this.createMappingVisitor(Collections.emptyList());
+        MappingVisitor visitor = this.createMappingVisitor(context);
         stmt.accept(visitor);
         visitor.afterResolve();
         afterResole(visitor);
diff --git a/src/main/java/com/alibaba/druid/mapping/spi/MSSQLServerMappingProvider.java b/src/main/java/com/alibaba/druid/mapping/spi/MSSQLServerMappingProvider.java
index 25c197cc60..310cf3c9c7 100644
--- a/src/main/java/com/alibaba/druid/mapping/spi/MSSQLServerMappingProvider.java
+++ b/src/main/java/com/alibaba/druid/mapping/spi/MSSQLServerMappingProvider.java
@@ -4,13 +4,13 @@ import java.util.List;
 
 import com.alibaba.druid.mapping.MappingContext;
 import com.alibaba.druid.mapping.MappingEngine;
+import com.alibaba.druid.sql.ast.SQLStatement;
 import com.alibaba.druid.sql.ast.expr.SQLNumberExpr;
 import com.alibaba.druid.sql.ast.expr.SQLNumericLiteralExpr;
 import com.alibaba.druid.sql.ast.statement.SQLDeleteStatement;
 import com.alibaba.druid.sql.ast.statement.SQLInsertStatement;
 import com.alibaba.druid.sql.ast.statement.SQLSelectQueryBlock;
 import com.alibaba.druid.sql.ast.statement.SQLUpdateStatement;
-import com.alibaba.druid.sql.dialect.postgresql.parser.PGSQLStatementParser;
 import com.alibaba.druid.sql.dialect.sqlserver.ast.SQLServerSelectQueryBlock;
 import com.alibaba.druid.sql.dialect.sqlserver.ast.Top;
 import com.alibaba.druid.sql.dialect.sqlserver.parser.SQLServerSelectParser;
@@ -70,7 +70,7 @@ public class MSSQLServerMappingProvider implements MappingProvider {
     }
 
     public SQLUpdateStatement explainToUpdateSQLObject(MappingEngine engine, String sql) {
-        PGSQLStatementParser parser = new PGSQLStatementParser(sql);
+        SQLServerStatementParser parser = new SQLServerStatementParser(sql);
         SQLUpdateStatement stmt = parser.parseUpdateStatement();
 
         MappingVisitorUtils.setDataSource(engine, stmt);
@@ -79,7 +79,7 @@ public class MSSQLServerMappingProvider implements MappingProvider {
     }
 
     public SQLInsertStatement explainToInsertSQLObject(MappingEngine engine, String sql) {
-        PGSQLStatementParser parser = new PGSQLStatementParser(sql);
+        SQLServerStatementParser parser = new SQLServerStatementParser(sql);
         SQLInsertStatement stmt = (SQLInsertStatement) parser.parseInsert();
 
         MappingVisitorUtils.setDataSource(engine, stmt);
@@ -91,4 +91,10 @@ public class MSSQLServerMappingProvider implements MappingProvider {
     public ExportParameterVisitor createExportParameterVisitor(List<Object> parameters) {
         return new MSSQLServerExportParameterVisitor(parameters);
     }
+
+    @Override
+    public List<SQLStatement> explain(MappingEngine engine, String sql) {
+        SQLServerStatementParser parser = new SQLServerStatementParser(sql);
+        return parser.parseStatementList();
+    }
 }
diff --git a/src/main/java/com/alibaba/druid/mapping/spi/MappingProvider.java b/src/main/java/com/alibaba/druid/mapping/spi/MappingProvider.java
index d0c864aca4..8885133739 100644
--- a/src/main/java/com/alibaba/druid/mapping/spi/MappingProvider.java
+++ b/src/main/java/com/alibaba/druid/mapping/spi/MappingProvider.java
@@ -4,6 +4,7 @@ import java.util.List;
 
 import com.alibaba.druid.mapping.MappingContext;
 import com.alibaba.druid.mapping.MappingEngine;
+import com.alibaba.druid.sql.ast.SQLStatement;
 import com.alibaba.druid.sql.ast.statement.SQLDeleteStatement;
 import com.alibaba.druid.sql.ast.statement.SQLInsertStatement;
 import com.alibaba.druid.sql.ast.statement.SQLSelectQueryBlock;
@@ -20,6 +21,8 @@ public interface MappingProvider {
     ExportParameterVisitor createExportParameterVisitor(List<Object> parameters);
 
     SQLASTOutputVisitor createOutputVisitor(MappingEngine engine, Appendable out);
+    
+    List<SQLStatement> explain(MappingEngine engine, String sql);
 
     SQLSelectQueryBlock explainToSelectSQLObject(MappingEngine engine, String sql);
 
diff --git a/src/main/java/com/alibaba/druid/mapping/spi/MySqlMappingProvider.java b/src/main/java/com/alibaba/druid/mapping/spi/MySqlMappingProvider.java
index cd0a02201e..2ecbf6c5c0 100644
--- a/src/main/java/com/alibaba/druid/mapping/spi/MySqlMappingProvider.java
+++ b/src/main/java/com/alibaba/druid/mapping/spi/MySqlMappingProvider.java
@@ -4,6 +4,7 @@ import java.util.List;
 
 import com.alibaba.druid.mapping.MappingContext;
 import com.alibaba.druid.mapping.MappingEngine;
+import com.alibaba.druid.sql.ast.SQLStatement;
 import com.alibaba.druid.sql.ast.expr.SQLIntegerExpr;
 import com.alibaba.druid.sql.ast.expr.SQLNumericLiteralExpr;
 import com.alibaba.druid.sql.ast.statement.SQLInsertStatement;
@@ -90,4 +91,10 @@ public class MySqlMappingProvider implements MappingProvider {
     public ExportParameterVisitor createExportParameterVisitor(List<Object> parameters) {
         return new MySqlExportParameterVisitor(parameters);
     }
+    
+    @Override
+    public List<SQLStatement> explain(MappingEngine engine, String sql) {
+        MySqlStatementParser parser = new MySqlStatementParser(sql);
+        return parser.parseStatementList();
+    }
 }
diff --git a/src/main/java/com/alibaba/druid/mapping/spi/OracleMappingProvider.java b/src/main/java/com/alibaba/druid/mapping/spi/OracleMappingProvider.java
index 6ce116f22b..2b0bd85f21 100644
--- a/src/main/java/com/alibaba/druid/mapping/spi/OracleMappingProvider.java
+++ b/src/main/java/com/alibaba/druid/mapping/spi/OracleMappingProvider.java
@@ -4,6 +4,7 @@ import java.util.List;
 
 import com.alibaba.druid.mapping.MappingContext;
 import com.alibaba.druid.mapping.MappingEngine;
+import com.alibaba.druid.sql.ast.SQLStatement;
 import com.alibaba.druid.sql.ast.statement.SQLInsertStatement;
 import com.alibaba.druid.sql.ast.statement.SQLSelectQueryBlock;
 import com.alibaba.druid.sql.ast.statement.SQLUpdateStatement;
@@ -70,4 +71,10 @@ public class OracleMappingProvider implements MappingProvider {
     public ExportParameterVisitor createExportParameterVisitor(List<Object> parameters) {
         return new OracleExportParameterVisitor(parameters);
     }
+    
+    @Override
+    public List<SQLStatement> explain(MappingEngine engine, String sql) {
+        OracleStatementParser parser = new OracleStatementParser(sql);
+        return parser.parseStatementList();
+    }
 }