bug fixed for mapping

src/main/java/com/alibaba/druid/sql/ast/expr/SQLNumericLiteralExpr.java

@@ -24,4 +24,6 @@ public abstract class SQLNumericLiteralExpr extends SQLLiteralExpr {
     }
 
     public abstract Number getNumber();
+    
+    public abstract void setNumber(Number number);
 }

src/main/java/com/alibaba/druid/sql/dialect/mysql/parser/MySqlStatementParser.java

@@ -26,7 +26,6 @@ import com.alibaba.druid.sql.ast.expr.SQLIdentifierExpr;
 import com.alibaba.druid.sql.ast.expr.SQLLiteralExpr;
 import com.alibaba.druid.sql.ast.expr.SQLQueryExpr;
 import com.alibaba.druid.sql.ast.statement.SQLCreateTableStatement;
-import com.alibaba.druid.sql.ast.statement.SQLDeleteStatement;
 import com.alibaba.druid.sql.ast.statement.SQLDropTableStatement;
 import com.alibaba.druid.sql.ast.statement.SQLInsertStatement;
 import com.alibaba.druid.sql.ast.statement.SQLSelectStatement;
@@ -87,7 +86,7 @@ public class MySqlStatementParser extends SQLStatementParser {
         return new SQLSelectStatement(new MySqlSelectParser(lexer).select());
     }
 
-    public SQLDeleteStatement parseDeleteStatement() throws ParserException {
+    public MySqlDeleteStatement parseDeleteStatement() throws ParserException {
         accept(Token.DELETE);
 
         MySqlDeleteStatement deleteStatement = new MySqlDeleteStatement();

src/main/java/com/alibaba/druid/sql/dialect/oracle/ast/expr/OracleBinaryDoubleExpr.java

@@ -72,4 +72,14 @@ public class OracleBinaryDoubleExpr extends SQLNumericLiteralExpr implements Ora
         return true;
     }
 
+    @Override
+    public void setNumber(Number number) {
+        if (number == null) {
+            this.setValue(null);
+            return;
+        }
+        
+        this.setValue(number.doubleValue());
+    }
+
 }

src/main/java/com/alibaba/druid/sql/dialect/oracle/ast/expr/OracleBinaryFloatExpr.java

@@ -72,4 +72,14 @@ public class OracleBinaryFloatExpr extends SQLNumericLiteralExpr implements Orac
         return true;
     }
 
+    @Override
+    public void setNumber(Number number) {
+        if (number == null) {
+            this.setValue(null);
+            return;
+        }
+        
+        this.setValue(number.floatValue());        
+    }
+
 }

src/main/java/com/alibaba/druid/sql/dialect/oracle/parser/OracleStatementParser.java

@@ -176,7 +176,7 @@ public class OracleStatementParser extends SQLStatementParser {
             }
 
             if (lexer.token() == (Token.DELETE)) {
-                statementList.add(parseDelete());
+                statementList.add(parseDeleteStatement());
                 continue;
             }
 
@@ -1413,7 +1413,7 @@ public class OracleStatementParser extends SQLStatementParser {
         return stmt;
     }
 
-    public OracleDeleteStatement parseDelete() throws ParserException {
+    public OracleDeleteStatement parseDeleteStatement() throws ParserException {
         accept(Token.DELETE);
 
         OracleDeleteStatement deleteStatement = new OracleDeleteStatement();