improved oracle pl/sql parser.

src/main/java/com/alibaba/druid/sql/ast/SQLParameter.java

@@ -24,6 +24,7 @@ public class SQLParameter extends SQLObjectImpl {
     private SQLExpr       defaultValue;
     private ParameterType paramType;
     private boolean       noCopy = false;
+    private boolean       constant = false;
 
     public SQLExpr getDefaultValue() {
         return defaultValue;
@@ -81,4 +82,12 @@ public class SQLParameter extends SQLObjectImpl {
     public void setNoCopy(boolean noCopy) {
         this.noCopy = noCopy;
     }
+
+    public boolean isConstant() {
+        return constant;
+    }
+
+    public void setConstant(boolean constant) {
+        this.constant = constant;
+    }
 }

src/main/java/com/alibaba/druid/sql/ast/statement/SQLBlockStatement.java

@@ -46,11 +46,14 @@ public class SQLBlockStatement extends SQLStatementImpl {
         this.labelName = labelName;
     }
 
+    public SQLStatement exception;
+
     @Override
     public void accept0(SQLASTVisitor visitor) {
         if (visitor.visit(this)) {
             acceptChild(visitor, parameters);
             acceptChild(visitor, statementList);
+            acceptChild(visitor, exception);
         }
         visitor.endVisit(this);
     }
@@ -63,4 +66,11 @@ public class SQLBlockStatement extends SQLStatementImpl {
         this.parameters = parameters;
     }
 
+    public SQLStatement getException() {
+        return exception;
+    }
+
+    public void setException(SQLStatement exception) {
+        this.exception = exception;
+    }
 }

src/main/java/com/alibaba/druid/sql/ast/statement/SQLCreateProcedureStatement.java

@@ -37,6 +37,8 @@ public class SQLCreateProcedureStatement extends SQLStatementImpl {
     // for oracle
     private String             javaCallSpec;
 
+    private SQLName            authid;
+
     @Override
     public void accept0(SQLASTVisitor visitor) {
         if (visitor.visit(this)) {
@@ -75,6 +77,17 @@ public class SQLCreateProcedureStatement extends SQLStatementImpl {
         this.block = block;
     }
 
+    public SQLName getAuthid() {
+        return authid;
+    }
+
+    public void setAuthid(SQLName authid) {
+        if (authid != null) {
+            authid.setParent(this);
+        }
+        this.authid = authid;
+    }
+
     public boolean isOrReplace() {
         return orReplace;
     }