improved oracle pl/sql parser.

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

@@ -15,6 +15,7 @@
  */
 package com.alibaba.druid.sql.ast.statement;
 
+import com.alibaba.druid.sql.ast.SQLExpr;
 import com.alibaba.druid.sql.ast.SQLStatementImpl;
 import com.alibaba.druid.sql.visitor.SQLASTVisitor;
 /**
@@ -24,7 +25,9 @@ import com.alibaba.druid.sql.visitor.SQLASTVisitor;
 public class SQLOpenStatement extends SQLStatementImpl{
 	
 	//cursor name
-	private String cursorName; 
+	private String cursorName;
+
+	private SQLExpr forExpr;
 	
 	public String getCursorName() {
 		return cursorName;
@@ -36,10 +39,20 @@ public class SQLOpenStatement extends SQLStatementImpl{
 
 	@Override
 	protected void accept0(SQLASTVisitor visitor) {
-		// TODO Auto-generated method stub
-		visitor.visit(this);
+		if (visitor.visit(this)) {
+			acceptChild(visitor, forExpr);
+		}
 	    visitor.endVisit(this);
-		
 	}
 
+	public SQLExpr getFor() {
+		return forExpr;
+	}
+
+	public void setFor(SQLExpr forExpr) {
+		if (forExpr != null) {
+			forExpr.setParent(this);
+		}
+		this.forExpr = forExpr;
+	}
 }

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

@@ -422,6 +422,12 @@ public class OracleStatementParser extends SQLStatementParser {
                 continue;
             }
 
+            if (lexer.token() == Token.CLOSE) {
+                SQLStatement stmt = this.parseClose();
+                statementList.add(stmt);
+                continue;
+            }
+
             if (lexer.token() == Token.CASE) {
                 SQLStatement stmt = this.parseCase();
                 statementList.add(stmt);

src/main/java/com/alibaba/druid/sql/parser/SQLStatementParser.java

@@ -26,6 +26,7 @@ import com.alibaba.druid.sql.ast.SQLObject;
 import com.alibaba.druid.sql.ast.SQLStatement;
 import com.alibaba.druid.sql.ast.expr.SQLCharExpr;
 import com.alibaba.druid.sql.ast.expr.SQLIdentifierExpr;
+import com.alibaba.druid.sql.ast.expr.SQLQueryExpr;
 import com.alibaba.druid.sql.ast.expr.SQLVariantRefExpr;
 import com.alibaba.druid.sql.ast.statement.*;
 import com.alibaba.druid.sql.ast.statement.SQLCreateTriggerStatement.TriggerEvent;
@@ -2189,6 +2190,18 @@ public class SQLStatementParser extends SQLParser {
         SQLOpenStatement stmt = new SQLOpenStatement();
         accept(Token.OPEN);
         stmt.setCursorName(exprParser.name().getSimpleName());
+
+        if (lexer.token() == Token.FOR) {
+            lexer.nextToken();
+            if (lexer.token() == Token.SELECT) {
+                SQLSelectParser selectParser = createSQLSelectParser();
+                SQLSelect select = selectParser.select();
+                SQLQueryExpr queryExpr = new SQLQueryExpr(select);
+                stmt.setFor(queryExpr);
+            } else {
+                throw new ParserException("TODO " + lexer.info());
+            }
+        }
         accept(Token.SEMI);
         return stmt;
     }

src/main/java/com/alibaba/druid/sql/visitor/SQLASTOutputVisitor.java

@@ -1025,6 +1025,8 @@ public class SQLASTOutputVisitor extends SQLASTVisitorAdapter implements Paramet
             x.getSubQuery().accept(this);
             print(')');
             println();
+        } else if (parent instanceof SQLOpenStatement) {
+            x.getSubQuery().accept(this);
         } else {
             print('(');
             incrementIndent();
@@ -3201,6 +3203,12 @@ public class SQLASTOutputVisitor extends SQLASTVisitorAdapter implements Paramet
     public boolean visit(SQLOpenStatement x) {
         print0(ucase ? "OPEN " : "open ");
         print0(x.getCursorName());
+
+        SQLExpr forExpr = x.getFor();
+        if (forExpr != null) {
+            print0(ucase ? " FOR " : "for ");
+            forExpr.accept(this);
+        }
         return false;
     }