diff --git a/src/main/java/com/alibaba/druid/sql/ast/statement/SQLCreateFunctionStatement.java b/src/main/java/com/alibaba/druid/sql/ast/statement/SQLCreateFunctionStatement.java
index b5eac116d6..a0d7e0309b 100644
--- a/src/main/java/com/alibaba/druid/sql/ast/statement/SQLCreateFunctionStatement.java
+++ b/src/main/java/com/alibaba/druid/sql/ast/statement/SQLCreateFunctionStatement.java
@@ -50,6 +50,7 @@ public class SQLCreateFunctionStatement extends SQLStatementImpl implements SQLC
     private boolean            aggregate;
     private SQLName            using;
     private boolean            pipelined;
+    private boolean            resultCache;
 
     public SQLCreateFunctionStatement clone() {
         SQLCreateFunctionStatement x = new SQLCreateFunctionStatement();
@@ -248,4 +249,12 @@ public class SQLCreateFunctionStatement extends SQLStatementImpl implements SQLC
     public void setPipelined(boolean pipelined) {
         this.pipelined = pipelined;
     }
+
+    public boolean isResultCache() {
+        return resultCache;
+    }
+
+    public void setResultCache(boolean resultCache) {
+        this.resultCache = resultCache;
+    }
 }
diff --git a/src/main/java/com/alibaba/druid/sql/ast/statement/SQLShowErrorsStatement.java b/src/main/java/com/alibaba/druid/sql/ast/statement/SQLShowErrorsStatement.java
new file mode 100644
index 0000000000..62e318e9d1
--- /dev/null
+++ b/src/main/java/com/alibaba/druid/sql/ast/statement/SQLShowErrorsStatement.java
@@ -0,0 +1,12 @@
+package com.alibaba.druid.sql.ast.statement;
+
+import com.alibaba.druid.sql.ast.SQLStatementImpl;
+import com.alibaba.druid.sql.visitor.SQLASTVisitor;
+
+public class SQLShowErrorsStatement extends SQLStatementImpl {
+    @Override
+    protected void accept0(SQLASTVisitor visitor) {
+        visitor.visit(this);
+        visitor.endVisit(this);
+    }
+}
diff --git a/src/main/java/com/alibaba/druid/sql/dialect/mysql/visitor/OracleToMySqlOutputVisitor.java b/src/main/java/com/alibaba/druid/sql/dialect/mysql/visitor/OracleToMySqlOutputVisitor.java
index 0080aaabeb..c83e555762 100644
--- a/src/main/java/com/alibaba/druid/sql/dialect/mysql/visitor/OracleToMySqlOutputVisitor.java
+++ b/src/main/java/com/alibaba/druid/sql/dialect/mysql/visitor/OracleToMySqlOutputVisitor.java
@@ -1035,4 +1035,14 @@ public class OracleToMySqlOutputVisitor extends MySqlOutputVisitor implements Or
     public void endVisit(OracleIsOfTypeExpr x) {
 
     }
+
+    @Override
+    public boolean visit(OracleRunStatement x) {
+        return false;
+    }
+
+    @Override
+    public void endVisit(OracleRunStatement x) {
+
+    }
 }
diff --git a/src/main/java/com/alibaba/druid/sql/dialect/oracle/ast/stmt/OracleRunStatement.java b/src/main/java/com/alibaba/druid/sql/dialect/oracle/ast/stmt/OracleRunStatement.java
new file mode 100644
index 0000000000..acff509ccd
--- /dev/null
+++ b/src/main/java/com/alibaba/druid/sql/dialect/oracle/ast/stmt/OracleRunStatement.java
@@ -0,0 +1,65 @@
+/*
+ * Copyright 1999-2017 Alibaba Group Holding Ltd.
+ *
+ * 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 com.alibaba.druid.sql.dialect.oracle.ast.stmt;
+
+import com.alibaba.druid.sql.SQLUtils;
+import com.alibaba.druid.sql.ast.SQLExpr;
+import com.alibaba.druid.sql.ast.SQLStatementImpl;
+import com.alibaba.druid.sql.ast.expr.SQLCharExpr;
+import com.alibaba.druid.sql.ast.statement.SQLExplainStatement;
+import com.alibaba.druid.sql.dialect.oracle.visitor.OracleASTVisitor;
+import com.alibaba.druid.sql.visitor.SQLASTVisitor;
+import com.alibaba.druid.util.JdbcConstants;
+
+public class OracleRunStatement extends SQLStatementImpl implements OracleStatement {
+
+    private SQLExpr     expr;
+
+    public OracleRunStatement() {
+        super (JdbcConstants.ORACLE);
+    }
+    public OracleRunStatement(SQLExpr expr) {
+        super (JdbcConstants.ORACLE);
+        this.setExpr(expr);
+    }
+
+    @Override
+    public void accept0(OracleASTVisitor visitor) {
+        if (visitor.visit(this)) {
+            acceptChild(visitor, expr);
+        }
+        visitor.endVisit(this);
+    }
+
+    protected void accept0(SQLASTVisitor visitor) {
+        accept0((OracleASTVisitor) visitor);
+    }
+
+    public String toString() {
+        return SQLUtils.toOracleString(this);
+    }
+
+    public SQLExpr getExpr() {
+        return expr;
+    }
+
+    public void setExpr(SQLExpr expr) {
+        if (expr != null) {
+            expr.setParent(this);
+        }
+        this.expr = expr;
+    }
+}
diff --git a/src/main/java/com/alibaba/druid/sql/dialect/oracle/parser/OracleLexer.java b/src/main/java/com/alibaba/druid/sql/dialect/oracle/parser/OracleLexer.java
index b663551042..f922690ef1 100644
--- a/src/main/java/com/alibaba/druid/sql/dialect/oracle/parser/OracleLexer.java
+++ b/src/main/java/com/alibaba/druid/sql/dialect/oracle/parser/OracleLexer.java
@@ -224,7 +224,13 @@ public class OracleLexer extends Lexer {
 
     protected void scanVariable_at() {
         scanChar();
-        token = Token.MONKEYS_AT;
+
+        if (ch == '@') {
+            scanChar();
+            token = Token.MONKEYS_AT_AT;
+        } else {
+            token = Token.MONKEYS_AT;
+        }
         return;
     }
 
diff --git a/src/main/java/com/alibaba/druid/sql/dialect/oracle/parser/OracleStatementParser.java b/src/main/java/com/alibaba/druid/sql/dialect/oracle/parser/OracleStatementParser.java
index 6ad946dbd2..f3f87eaf63 100644
--- a/src/main/java/com/alibaba/druid/sql/dialect/oracle/parser/OracleStatementParser.java
+++ b/src/main/java/com/alibaba/druid/sql/dialect/oracle/parser/OracleStatementParser.java
@@ -309,6 +309,23 @@ public class OracleStatementParser extends SQLStatementParser {
                     continue;
                 }
 
+                if (strVal.equalsIgnoreCase("SHOW")) {
+//                    Lexer.SavePoint savePoint = lexer.mark();
+                    lexer.nextToken();
+
+                    if (lexer.identifierEquals("ERR")) {
+                        lexer.nextToken();
+                    } else {
+                        accept(Token.ERRORS);
+                    }
+
+                    SQLShowErrorsStatement stmt = new SQLShowErrorsStatement();
+                    stmt.setDbType(dbType);
+                    stmt.setParent(parent);
+                    statementList.add(stmt);
+                    continue;
+                }
+
                 SQLExpr expr = exprParser.expr();
 
                 if (expr instanceof SQLBinaryOpExpr) {
@@ -646,6 +663,17 @@ public class OracleStatementParser extends SQLStatementParser {
                 continue;
             }
 
+            if (lexer.token() == Token.MONKEYS_AT_AT) {
+                lexer.nextToken();
+
+                SQLExpr expr = exprParser.primary();
+
+                OracleRunStatement stmt = new OracleRunStatement(expr);
+                stmt.setParent(parent);
+                statementList.add(stmt);
+                continue;
+            }
+
             throw new ParserException("TODO : " + lexer.info());
         }
     }
@@ -845,6 +873,11 @@ public class OracleStatementParser extends SQLStatementParser {
             stmt.setAuthid(authid);
         }
 
+        if (identifierEquals("RESULT_CACHE")) {
+            lexer.nextToken();
+            stmt.setResultCache(true);
+        }
+
         if (lexer.token() == Token.SEMI) {
             lexer.nextToken();
             return stmt;
@@ -1739,7 +1772,7 @@ public class OracleStatementParser extends SQLStatementParser {
                 SQLSelect select = this.createSQLSelectParser().select();
                 parameter.setDefaultValue(new SQLQueryExpr(select));
 
-            } else if (lexer.token() == Token.PROCEDURE) {
+            } else if (lexer.token() == Token.PROCEDURE || lexer.token() == Token.END) {
                 break;
             } else if (lexer.identifierEquals("TYPE")) {
                 lexer.nextToken();
@@ -1809,7 +1842,16 @@ public class OracleStatementParser extends SQLStatementParser {
                     }
                 } else if (lexer.token() == Token.OUT) {
                     lexer.nextToken();
-                    parameter.setParamType(SQLParameter.ParameterType.OUT);
+
+                    if (lexer.token() == Token.IN) {
+                        lexer.nextToken();
+                        parameter.setParamType(SQLParameter.ParameterType.INOUT);
+                    } else {
+                        parameter.setParamType(SQLParameter.ParameterType.OUT);
+                    }
+                } else if (lexer.token() == Token.INOUT) {
+                    lexer.nextToken();
+                    parameter.setParamType(SQLParameter.ParameterType.INOUT);
                 }
 
                 if (lexer.identifierEquals("NOCOPY")) {
@@ -1830,11 +1872,13 @@ public class OracleStatementParser extends SQLStatementParser {
                     lexer.nextToken();
                     functionDataType.setName(lexer.stringVal());
                     accept(Token.IDENTIFIER);
-                    accept(Token.LPAREN);
-                    this.parserParameters(functionDataType.getParameters(), functionDataType);
-                    accept(Token.RPAREN);
+                    if (lexer.token() == Token.LPAREN) {
+                        lexer.nextToken();
+                        this.parserParameters(functionDataType.getParameters(), functionDataType);
+                        accept(Token.RPAREN);
+                    }
                     accept(Token.RETURN);
-                    functionDataType.setReturnDataType(this.exprParser.parseDataType());
+                    functionDataType.setReturnDataType(this.exprParser.parseDataType(false));
                     dataType = functionDataType;
                     name = null;
 
@@ -2612,9 +2656,16 @@ public class OracleStatementParser extends SQLStatementParser {
         if (lexer.identifierEquals(FnvHash.Constants.STATIC)) {
             this.parserParameters(stmt.getParameters(), stmt);
         } else {
-            accept(Token.LPAREN);
-            this.parserParameters(stmt.getParameters(), stmt);
-            accept(Token.RPAREN);
+            if (lexer.token() == Token.LPAREN) {
+                lexer.nextToken();
+                this.parserParameters(stmt.getParameters(), stmt);
+                accept(Token.RPAREN);
+            } else {
+                this.parserParameters(stmt.getParameters(), stmt);
+                if (lexer.token() == Token.END) {
+                    lexer.nextToken();
+                }
+            }
         }
 
         if (lexer.token() == Token.SEMI) {
diff --git a/src/main/java/com/alibaba/druid/sql/dialect/oracle/visitor/OracleASTVisitor.java b/src/main/java/com/alibaba/druid/sql/dialect/oracle/visitor/OracleASTVisitor.java
index cc846abbf0..2c165ffa0a 100644
--- a/src/main/java/com/alibaba/druid/sql/dialect/oracle/visitor/OracleASTVisitor.java
+++ b/src/main/java/com/alibaba/druid/sql/dialect/oracle/visitor/OracleASTVisitor.java
@@ -441,4 +441,8 @@ public interface OracleASTVisitor extends SQLASTVisitor {
     boolean visit(OracleIsOfTypeExpr x);
 
     void endVisit(OracleIsOfTypeExpr x);
+
+    boolean visit(OracleRunStatement x);
+
+    void endVisit(OracleRunStatement x);
 }
diff --git a/src/main/java/com/alibaba/druid/sql/dialect/oracle/visitor/OracleASTVisitorAdapter.java b/src/main/java/com/alibaba/druid/sql/dialect/oracle/visitor/OracleASTVisitorAdapter.java
index 0d4dac71b9..79a50db9ed 100644
--- a/src/main/java/com/alibaba/druid/sql/dialect/oracle/visitor/OracleASTVisitorAdapter.java
+++ b/src/main/java/com/alibaba/druid/sql/dialect/oracle/visitor/OracleASTVisitorAdapter.java
@@ -1093,4 +1093,14 @@ public class OracleASTVisitorAdapter extends SQLASTVisitorAdapter implements Ora
     public void endVisit(OracleIsOfTypeExpr x) {
 
     }
+
+    @Override
+    public boolean visit(OracleRunStatement x) {
+        return true;
+    }
+
+    @Override
+    public void endVisit(OracleRunStatement x) {
+
+    }
 }
diff --git a/src/main/java/com/alibaba/druid/sql/dialect/oracle/visitor/OracleOutputVisitor.java b/src/main/java/com/alibaba/druid/sql/dialect/oracle/visitor/OracleOutputVisitor.java
index b181b1611e..23a57bb6be 100644
--- a/src/main/java/com/alibaba/druid/sql/dialect/oracle/visitor/OracleOutputVisitor.java
+++ b/src/main/java/com/alibaba/druid/sql/dialect/oracle/visitor/OracleOutputVisitor.java
@@ -3374,4 +3374,16 @@ public class OracleOutputVisitor extends SQLASTOutputVisitor implements OracleAS
     public void endVisit(OracleIsOfTypeExpr x) {
 
     }
+
+    @Override
+    public boolean visit(OracleRunStatement x) {
+        print0("@@");
+        printExpr(x.getExpr());
+        return false;
+    }
+
+    @Override
+    public void endVisit(OracleRunStatement x) {
+
+    }
 }
diff --git a/src/main/java/com/alibaba/druid/sql/dialect/oracle/visitor/OracleSchemaStatVisitor.java b/src/main/java/com/alibaba/druid/sql/dialect/oracle/visitor/OracleSchemaStatVisitor.java
index 4afcbad54c..127bc7754c 100644
--- a/src/main/java/com/alibaba/druid/sql/dialect/oracle/visitor/OracleSchemaStatVisitor.java
+++ b/src/main/java/com/alibaba/druid/sql/dialect/oracle/visitor/OracleSchemaStatVisitor.java
@@ -1385,4 +1385,14 @@ public class OracleSchemaStatVisitor extends SchemaStatVisitor implements Oracle
     public void endVisit(OracleIsOfTypeExpr x) {
 
     }
+
+    @Override
+    public boolean visit(OracleRunStatement x) {
+        return true;
+    }
+
+    @Override
+    public void endVisit(OracleRunStatement x) {
+
+    }
 }
diff --git a/src/main/java/com/alibaba/druid/sql/dialect/postgresql/visitor/PGOutputVisitor.java b/src/main/java/com/alibaba/druid/sql/dialect/postgresql/visitor/PGOutputVisitor.java
index bfd46a7ca7..54e565f342 100644
--- a/src/main/java/com/alibaba/druid/sql/dialect/postgresql/visitor/PGOutputVisitor.java
+++ b/src/main/java/com/alibaba/druid/sql/dialect/postgresql/visitor/PGOutputVisitor.java
@@ -2795,4 +2795,16 @@ public class PGOutputVisitor extends SQLASTOutputVisitor implements PGASTVisitor
     public void endVisit(OracleIsOfTypeExpr x) {
 
     }
+
+    @Override
+    public boolean visit(OracleRunStatement x) {
+        print0("@@");
+        printExpr(x.getExpr());
+        return false;
+    }
+
+    @Override
+    public void endVisit(OracleRunStatement x) {
+
+    }
 }
diff --git a/src/main/java/com/alibaba/druid/sql/parser/SQLExprParser.java b/src/main/java/com/alibaba/druid/sql/parser/SQLExprParser.java
index 34437357a0..29df85c66b 100644
--- a/src/main/java/com/alibaba/druid/sql/parser/SQLExprParser.java
+++ b/src/main/java/com/alibaba/druid/sql/parser/SQLExprParser.java
@@ -2516,6 +2516,10 @@ public class SQLExprParser extends SQLParser {
             lexer.nextToken();
             item.setValue(new SQLBooleanExpr(true));
             return item;
+        } else if (lexer.token == Token.ON) {
+            lexer.nextToken();
+            item.setValue(new SQLIdentifierExpr("ON"));
+            return item;
         } else {
             accept(Token.EQ);
         }
diff --git a/src/main/java/com/alibaba/druid/sql/visitor/SQLASTOutputVisitor.java b/src/main/java/com/alibaba/druid/sql/visitor/SQLASTOutputVisitor.java
index b06a969fd1..3941e0091a 100644
--- a/src/main/java/com/alibaba/druid/sql/visitor/SQLASTOutputVisitor.java
+++ b/src/main/java/com/alibaba/druid/sql/visitor/SQLASTOutputVisitor.java
@@ -5477,4 +5477,10 @@ public class SQLASTOutputVisitor extends SQLASTVisitorAdapter implements Paramet
         this.indentCount--;
         return false;
     }
+
+    @Override
+    public boolean visit(SQLShowErrorsStatement x) {
+        print0(ucase ? "SHOW ERRORS" : "show errors");
+        return true;
+    }
 }
diff --git a/src/main/java/com/alibaba/druid/sql/visitor/SQLASTVisitor.java b/src/main/java/com/alibaba/druid/sql/visitor/SQLASTVisitor.java
index 17d852c9dc..b177555b34 100644
--- a/src/main/java/com/alibaba/druid/sql/visitor/SQLASTVisitor.java
+++ b/src/main/java/com/alibaba/druid/sql/visitor/SQLASTVisitor.java
@@ -766,4 +766,7 @@ public interface SQLASTVisitor {
     boolean visit(SQLLateralViewTableSource x);
 
     void endVisit(SQLLateralViewTableSource x);
+
+    boolean visit(SQLShowErrorsStatement x);
+    void endVisit(SQLShowErrorsStatement x);
 }
diff --git a/src/main/java/com/alibaba/druid/sql/visitor/SQLASTVisitorAdapter.java b/src/main/java/com/alibaba/druid/sql/visitor/SQLASTVisitorAdapter.java
index 3753afb72e..417ccec056 100644
--- a/src/main/java/com/alibaba/druid/sql/visitor/SQLASTVisitorAdapter.java
+++ b/src/main/java/com/alibaba/druid/sql/visitor/SQLASTVisitorAdapter.java
@@ -1759,6 +1759,16 @@ public class SQLASTVisitorAdapter implements SQLASTVisitor {
 
     }
 
+    @Override
+    public boolean visit(SQLShowErrorsStatement x) {
+        return true;
+    }
+
+    @Override
+    public void endVisit(SQLShowErrorsStatement x) {
+
+    }
+
     public final boolean isEnabled(VisitorFeature feature) {
         return VisitorFeature.isEnabled(this.features, feature);
     }
diff --git a/src/test/java/com/alibaba/druid/bvt/sql/oracle/AntlrScriptExamplesTest.java b/src/test/java/com/alibaba/druid/bvt/sql/oracle/AntlrScriptExamplesTest.java
new file mode 100644
index 0000000000..847ce91ed4
--- /dev/null
+++ b/src/test/java/com/alibaba/druid/bvt/sql/oracle/AntlrScriptExamplesTest.java
@@ -0,0 +1,22 @@
+package com.alibaba.druid.bvt.sql.oracle;
+
+import com.alibaba.druid.sql.SQLUtils;
+import com.alibaba.druid.util.JdbcConstants;
+import junit.framework.TestCase;
+import org.apache.commons.io.FileUtils;
+
+import java.io.File;
+import java.net.URL;
+
+public class AntlrScriptExamplesTest extends TestCase {
+    public void test_for_antlr_examples() throws Exception {
+        String path = "bvt/parser/antlr_grammers_v4_plsql/examples-sql-script/";
+        URL resource = Thread.currentThread().getContextClassLoader().getResource(path);
+        File dir = new File(resource.getFile());
+        for (File file : dir.listFiles()) {
+            System.out.println(file);
+            String sql = FileUtils.readFileToString(file);
+            SQLUtils.parseStatements(sql, JdbcConstants.ORACLE);
+        }
+    }
+}
diff --git a/src/test/java/com/alibaba/druid/bvt/sql/oracle/pl/Oracle_pl_3.java b/src/test/java/com/alibaba/druid/bvt/sql/oracle/pl/Oracle_pl_3.java
new file mode 100644
index 0000000000..7f1b4385c8
--- /dev/null
+++ b/src/test/java/com/alibaba/druid/bvt/sql/oracle/pl/Oracle_pl_3.java
@@ -0,0 +1,105 @@
+/*
+ * Copyright 1999-2017 Alibaba Group Holding Ltd.
+ *
+ * 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 com.alibaba.druid.bvt.sql.oracle.pl;
+
+import com.alibaba.druid.sql.OracleTest;
+import com.alibaba.druid.sql.SQLUtils;
+import com.alibaba.druid.sql.ast.SQLStatement;
+import com.alibaba.druid.sql.visitor.SchemaStatVisitor;
+import com.alibaba.druid.util.JdbcConstants;
+
+import java.util.List;
+
+public class Oracle_pl_3 extends OracleTest {
+
+    public void test_0() throws Exception {
+        String sql = "create or replace type type_body_elements\n" +
+				"as object\n" +
+				"(\n" +
+				"  some_string varchar2(64),\n" +
+				"  member function function_one\n" +
+				"  return varchar2,\n" +
+				"  member function function_two\n" +
+				"  return varchar2\n" +
+				");\n" +
+				"/\n" +
+				"\n" +
+				"create or replace type body type_body_elements\n" +
+				"is\n" +
+				"\n" +
+				"  member function function_one\n" +
+				"  return varchar2\n" +
+				"  is\n" +
+				"  begin\n" +
+				"    return 'the function_one result';\n" +
+				"  end function_one;\n" +
+				"\n" +
+				"  member function function_two\n" +
+				"  return varchar2\n" +
+				"  is\n" +
+				"  begin\n" +
+				"    return 'the function_two result';\n" +
+				"  end function_two;\n" +
+				"\n" +
+				"end;\n" +
+				"/\n"; //
+
+        List<SQLStatement> statementList = SQLUtils.parseStatements(sql, JdbcConstants.ORACLE);
+		assertEquals(4, statementList.size());
+		SQLStatement stmt = statementList.get(0);
+
+        SchemaStatVisitor visitor = SQLUtils.createSchemaStatVisitor(JdbcConstants.ORACLE);
+        for (SQLStatement statement : statementList) {
+            statement.accept(visitor);
+        }
+
+//        System.out.println("Tables : " + visitor.getTables());
+//        System.out.println("fields : " + visitor.getColumns());
+//        System.out.println("coditions : " + visitor.getConditions());
+//        System.out.println("relationships : " + visitor.getRelationships());
+//        System.out.println("orderBy : " + visitor.getOrderByColumns());
+
+        assertEquals(0, visitor.getTables().size());
+
+//        Assert.assertTrue(visitor.getTables().containsKey(new TableStat.Name("employees")));
+//        Assert.assertTrue(visitor.getTables().containsKey(new TableStat.Name("emp_name")));
+
+//        Assert.assertEquals(7, visitor.getColumns().size());
+//        Assert.assertEquals(3, visitor.getConditions().size());
+//        Assert.assertEquals(1, visitor.getRelationships().size());
+
+        // Assert.assertTrue(visitor.getColumns().contains(new TableStat.Column("employees", "salary")));
+
+		{
+			String output = SQLUtils.toOracleString(stmt);
+			assertEquals("CREATE OR REPLACE TYPE type_body_elements AS OBJECT (\n" +
+							"\tsome_string varchar2(64), \n" +
+							"\tFUNCTION function_one () RETURN varchar2, \n" +
+							"\tFUNCTION function_two () RETURN varchar2\n" +
+							");", //
+					output);
+		}
+		{
+			String output = SQLUtils.toOracleString(stmt, SQLUtils.DEFAULT_LCASE_FORMAT_OPTION);
+			assertEquals("create or replace type type_body_elements AS OBJECT (\n" +
+							"\tsome_string varchar2(64), \n" +
+							"\tfunction function_one () return varchar2, \n" +
+							"\tfunction function_two () return varchar2\n" +
+							");", //
+					output);
+		}
+	}
+}
diff --git a/src/test/java/com/alibaba/druid/bvt/sql/postgresql/PGCreateSequenceTest0.java b/src/test/java/com/alibaba/druid/bvt/sql/postgresql/PGCreateSequenceTest0.java
new file mode 100644
index 0000000000..ca48155987
--- /dev/null
+++ b/src/test/java/com/alibaba/druid/bvt/sql/postgresql/PGCreateSequenceTest0.java
@@ -0,0 +1,61 @@
+/*
+ * Copyright 1999-2017 Alibaba Group Holding Ltd.
+ *
+ * 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 com.alibaba.druid.bvt.sql.postgresql;
+
+import com.alibaba.druid.sql.PGTest;
+import com.alibaba.druid.sql.SQLUtils;
+import com.alibaba.druid.sql.ast.SQLStatement;
+import com.alibaba.druid.sql.dialect.postgresql.parser.PGSQLStatementParser;
+import com.alibaba.druid.sql.dialect.postgresql.visitor.PGSchemaStatVisitor;
+import com.alibaba.druid.stat.TableStat;
+
+import java.util.List;
+
+public class PGCreateSequenceTest0 extends PGTest {
+
+    public void test_0() throws Exception {
+        String sql = "\n" +
+                "create sequence SEQ_CONTRACT_OPER_ID    \n" +
+                "INCREMENT BY 1\n" +
+                "START WITH 1\n" +
+                "NOMAXVALUE\n" +
+                "NOCYCLE\n" +
+                "CACHE 10;  ";
+
+        PGSQLStatementParser parser = new PGSQLStatementParser(sql);
+        List<SQLStatement> statementList = parser.parseStatementList();
+        SQLStatement stmt = statementList.get(0);
+        
+        assertEquals("CREATE SEQUENCE SEQ_CONTRACT_OPER_ID START WITH 1 INCREMENT BY 1 NO MAXVALUE NO CYCLE CACHE 10;", SQLUtils.toPGString(stmt));
+        
+        assertEquals("create sequence SEQ_CONTRACT_OPER_ID start with 1 increment by 1 no maxvalue no cycle cache 10;", SQLUtils.toPGString(stmt, SQLUtils.DEFAULT_LCASE_FORMAT_OPTION));
+
+        assertEquals(1, statementList.size());
+
+        PGSchemaStatVisitor visitor = new PGSchemaStatVisitor();
+        stmt.accept(visitor);
+
+//        System.out.println("Tables : " + visitor.getTables());
+//        System.out.println("fields : " + visitor.getColumns());
+
+//        assertTrue(visitor.getTables().containsKey(new TableStat.Name("test_site_data_select_111")));
+//
+//        assertTrue(visitor.getTables().get(new TableStat.Name("test_site_data_select_111")).getCreateCount() == 1);
+//
+//        assertEquals(4, visitor.getColumns().size() );
+    }
+
+}
diff --git a/src/test/resources/bvt/parser/antlr_grammers_v4_plsql/examples-sql-script/delete_as_regular_id.pkb b/src/test/resources/bvt/parser/antlr_grammers_v4_plsql/examples-sql-script/delete_as_regular_id.pkb
new file mode 100644
index 0000000000..1864958676
--- /dev/null
+++ b/src/test/resources/bvt/parser/antlr_grammers_v4_plsql/examples-sql-script/delete_as_regular_id.pkb
@@ -0,0 +1,11 @@
+CREATE OR REPLACE PACKAGE BODY FOO
+AS
+    PROCEDURE BAR(COLL COLL_TYPE)
+    IS
+    BEGIN
+        COLL.DELETE;
+        COLL.DELETE();
+        COLL.DELETE(42);
+        COLL.DELETE(42, 64);
+    END BAR;
+END FOO;
\ No newline at end of file
diff --git a/src/test/resources/bvt/parser/antlr_grammers_v4_plsql/examples-sql-script/deterministic_function.pks b/src/test/resources/bvt/parser/antlr_grammers_v4_plsql/examples-sql-script/deterministic_function.pks
new file mode 100644
index 0000000000..f6fd201f28
--- /dev/null
+++ b/src/test/resources/bvt/parser/antlr_grammers_v4_plsql/examples-sql-script/deterministic_function.pks
@@ -0,0 +1,7 @@
+create or replace package deterministic_function
+is
+
+  function fixed_value return varchar2 deterministic;
+
+end deterministic_function;
+/
diff --git a/src/test/resources/bvt/parser/antlr_grammers_v4_plsql/examples-sql-script/e_in_out_parameters.pks b/src/test/resources/bvt/parser/antlr_grammers_v4_plsql/examples-sql-script/e_in_out_parameters.pks
new file mode 100644
index 0000000000..f767a31931
--- /dev/null
+++ b/src/test/resources/bvt/parser/antlr_grammers_v4_plsql/examples-sql-script/e_in_out_parameters.pks
@@ -0,0 +1,29 @@
+create or replace package e_in_out_parameters
+is
+
+  procedure some_in_nocopy_procedure( p_string in nocopy varchar2 );
+
+end e_in_out_parameters;
+/
+
+show errors
+
+create or replace package e_in_out_parameters
+is
+
+  procedure some_out_in_procedure( p_string out in varchar2 );
+
+end e_in_out_parameters;
+/
+
+show errors
+
+create or replace package e_in_out_parameters
+is
+
+  procedure some_inout_procedure( p_string inout varchar2 );
+
+end e_in_out_parameters;
+/
+
+show errors
diff --git a/src/test/resources/bvt/parser/antlr_grammers_v4_plsql/examples-sql-script/green_run.sql b/src/test/resources/bvt/parser/antlr_grammers_v4_plsql/examples-sql-script/green_run.sql
new file mode 100644
index 0000000000..a69a0d55da
--- /dev/null
+++ b/src/test/resources/bvt/parser/antlr_grammers_v4_plsql/examples-sql-script/green_run.sql
@@ -0,0 +1,6 @@
+@@green_table.sql
+
+@@green_tools.pks
+@@green_tools.pkb
+
+@@green_tools_review.sql
diff --git a/src/test/resources/bvt/parser/antlr_grammers_v4_plsql/examples-sql-script/green_table.sql b/src/test/resources/bvt/parser/antlr_grammers_v4_plsql/examples-sql-script/green_table.sql
new file mode 100644
index 0000000000..a099c1c4c0
--- /dev/null
+++ b/src/test/resources/bvt/parser/antlr_grammers_v4_plsql/examples-sql-script/green_table.sql
@@ -0,0 +1,17 @@
+drop table green_table;
+
+create table green_table
+(
+  green_col_one number(10)
+, green_col_two varchar2(64)
+);
+
+insert into green_table (green_col_one, green_col_two)
+values (100021, 'green-varchar-21');
+insert into green_table (green_col_one, green_col_two)
+values (100022, 'green-varchar-22');
+insert into green_table (green_col_one, green_col_two)
+values (100023, 'green-varchar-23');
+
+select *
+from green_table;
diff --git a/src/test/resources/bvt/parser/antlr_grammers_v4_plsql/examples-sql-script/green_tools.pkb b/src/test/resources/bvt/parser/antlr_grammers_v4_plsql/examples-sql-script/green_tools.pkb
new file mode 100644
index 0000000000..2d2e5d2db3
--- /dev/null
+++ b/src/test/resources/bvt/parser/antlr_grammers_v4_plsql/examples-sql-script/green_tools.pkb
@@ -0,0 +1,32 @@
+create or replace package body green_tools
+is
+
+  procedure no_params_procedure
+  is
+  begin
+    dbms_output.put_line('no_params_procedure : begin');
+  end no_params_procedure;
+
+  function add_brackets( p_string in varchar2 ) return varchar2
+  as
+  begin
+    return '[' || p_string || ']';
+  end add_brackets;
+
+  procedure print_green_info( p_with_brackets in boolean )
+  is
+  begin
+    for r in ( select green_col_two
+               from   green_table )
+    loop
+      if p_with_brackets then
+        dbms_output.put_line('print_green_info : with brackets : ' || add_brackets(r.green_col_two));
+      else
+        dbms_output.put_line('print_green_info : no brackets : ' || r.green_col_two);
+      end if;
+    end loop;
+  end print_green_info;
+
+end green_tools;
+/
+
diff --git a/src/test/resources/bvt/parser/antlr_grammers_v4_plsql/examples-sql-script/green_tools.pks b/src/test/resources/bvt/parser/antlr_grammers_v4_plsql/examples-sql-script/green_tools.pks
new file mode 100644
index 0000000000..bf5f3efff1
--- /dev/null
+++ b/src/test/resources/bvt/parser/antlr_grammers_v4_plsql/examples-sql-script/green_tools.pks
@@ -0,0 +1,11 @@
+create or replace package green_tools
+is
+
+  procedure no_params_procedure;
+
+  function add_brackets( p_string in varchar2 ) return varchar2;
+
+  procedure print_green_info( p_with_brackets in boolean );
+
+end green_tools;
+/
diff --git a/src/test/resources/bvt/parser/antlr_grammers_v4_plsql/examples-sql-script/green_tools_review.sql b/src/test/resources/bvt/parser/antlr_grammers_v4_plsql/examples-sql-script/green_tools_review.sql
new file mode 100644
index 0000000000..951e4ad692
--- /dev/null
+++ b/src/test/resources/bvt/parser/antlr_grammers_v4_plsql/examples-sql-script/green_tools_review.sql
@@ -0,0 +1,14 @@
+set serveroutput on
+
+select green_tools.add_brackets('to-be-bracketed') as with_brackets
+from dual;
+
+begin
+  green_tools.print_green_info( p_with_brackets => false );
+end;
+/
+
+begin
+  green_tools.print_green_info( p_with_brackets => true );
+end;
+/
diff --git a/src/test/resources/bvt/parser/antlr_grammers_v4_plsql/examples-sql-script/in_out_parameters.pks b/src/test/resources/bvt/parser/antlr_grammers_v4_plsql/examples-sql-script/in_out_parameters.pks
new file mode 100644
index 0000000000..56193cb761
--- /dev/null
+++ b/src/test/resources/bvt/parser/antlr_grammers_v4_plsql/examples-sql-script/in_out_parameters.pks
@@ -0,0 +1,15 @@
+create or replace package in_out_parameters
+is
+
+  procedure some_procedure( p_string varchar2 );
+
+  procedure some_in_procedure( p_string in varchar2 );
+
+  procedure some_out_procedure( p_string out varchar2 );
+
+  procedure some_in_out_procedure( p_string in out varchar2 );
+
+  procedure some_in_out_nocopy_procedure( p_string in out nocopy varchar2 );
+
+end in_out_parameters;
+/
diff --git a/src/test/resources/bvt/parser/antlr_grammers_v4_plsql/examples-sql-script/key_word_as_param.pkb b/src/test/resources/bvt/parser/antlr_grammers_v4_plsql/examples-sql-script/key_word_as_param.pkb
new file mode 100644
index 0000000000..407fc44cc9
--- /dev/null
+++ b/src/test/resources/bvt/parser/antlr_grammers_v4_plsql/examples-sql-script/key_word_as_param.pkb
@@ -0,0 +1,13 @@
+create or replace package body login
+as
+
+function fun return varchar2
+as
+	raw_key2 raw(128);
+    raw_userpass raw(128);
+    raw_encrypted raw(2048);
+begin
+    dbms_obfuscation_toolkit.desencrypt(input => raw_userpass, key => raw_key2, encrypted_data => raw_encrypted);
+end fun;
+
+end;
\ No newline at end of file
diff --git a/src/test/resources/bvt/parser/antlr_grammers_v4_plsql/examples-sql-script/package_with_schema.pkb b/src/test/resources/bvt/parser/antlr_grammers_v4_plsql/examples-sql-script/package_with_schema.pkb
new file mode 100644
index 0000000000..1ff4505be9
--- /dev/null
+++ b/src/test/resources/bvt/parser/antlr_grammers_v4_plsql/examples-sql-script/package_with_schema.pkb
@@ -0,0 +1,8 @@
+CREATE OR REPLACE PACKAGE BODY HR.PACK
+AS
+PROCEDURE PROC1
+AS
+BEGIN
+    NULL;
+END;
+END;
\ No newline at end of file
diff --git a/src/test/resources/bvt/parser/antlr_grammers_v4_plsql/examples-sql-script/package_with_schema.pks b/src/test/resources/bvt/parser/antlr_grammers_v4_plsql/examples-sql-script/package_with_schema.pks
new file mode 100644
index 0000000000..8f612d98ae
--- /dev/null
+++ b/src/test/resources/bvt/parser/antlr_grammers_v4_plsql/examples-sql-script/package_with_schema.pks
@@ -0,0 +1,4 @@
+CREATE OR REPLACE PACKAGE HR.PACK
+AS
+PROCEDURE PROC1;
+END;
\ No newline at end of file
diff --git a/src/test/resources/bvt/parser/antlr_grammers_v4_plsql/examples-sql-script/pipe_row.pkb b/src/test/resources/bvt/parser/antlr_grammers_v4_plsql/examples-sql-script/pipe_row.pkb
new file mode 100644
index 0000000000..6e6953f875
--- /dev/null
+++ b/src/test/resources/bvt/parser/antlr_grammers_v4_plsql/examples-sql-script/pipe_row.pkb
@@ -0,0 +1,24 @@
+create or replace package body pipe_row_test as
+
+function fun return t_tab pipelined
+as
+    vRow t_tab_row;
+begin
+    for rec in ( select Id from tbl )
+    loop
+        vrow.Id := rec.Id;
+        pipe row (vrow);
+    end loop;
+         
+end;
+
+
+function prodfunc(n number) return mytabletype pipelined is
+begin
+	for i in 1 .. 5 loop
+    	pipe row (myobjectformat(n,sysdate+i,'row '||i));
+    end loop;
+    return;
+end;
+
+end;
\ No newline at end of file
diff --git a/src/test/resources/bvt/parser/antlr_grammers_v4_plsql/examples-sql-script/pragma_exception_init.pks b/src/test/resources/bvt/parser/antlr_grammers_v4_plsql/examples-sql-script/pragma_exception_init.pks
new file mode 100644
index 0000000000..cca9d7571f
--- /dev/null
+++ b/src/test/resources/bvt/parser/antlr_grammers_v4_plsql/examples-sql-script/pragma_exception_init.pks
@@ -0,0 +1,8 @@
+create or replace package pragma_exception_init
+is
+
+  some_exception exception;
+  pragma exception_init (some_exception, -20001);
+
+end pragma_exception_init;
+/
diff --git a/src/test/resources/bvt/parser/antlr_grammers_v4_plsql/examples-sql-script/proc_over_dblink_as_nvl_param.pkb b/src/test/resources/bvt/parser/antlr_grammers_v4_plsql/examples-sql-script/proc_over_dblink_as_nvl_param.pkb
new file mode 100644
index 0000000000..8f5dd3660a
--- /dev/null
+++ b/src/test/resources/bvt/parser/antlr_grammers_v4_plsql/examples-sql-script/proc_over_dblink_as_nvl_param.pkb
@@ -0,0 +1,14 @@
+create or replace package body pack as
+
+procedure test(inId number)
+as
+	vSum number;
+	vPaymentsDate number;
+begin
+	
+	vSum := nvl(pack_1.getSum@dblink(inId=>inId, vPaymentsDate => pack_2.getLastDay(4, 3)), 0);  
+
+end;
+
+
+end;
\ No newline at end of file
diff --git a/src/test/resources/bvt/parser/antlr_grammers_v4_plsql/examples-sql-script/result_cache_function.pks b/src/test/resources/bvt/parser/antlr_grammers_v4_plsql/examples-sql-script/result_cache_function.pks
new file mode 100644
index 0000000000..84213d1e39
--- /dev/null
+++ b/src/test/resources/bvt/parser/antlr_grammers_v4_plsql/examples-sql-script/result_cache_function.pks
@@ -0,0 +1,7 @@
+create or replace package result_cache_function
+is
+
+  function some_function( p_string in varchar2 ) return varchar2 result_cache;
+
+end result_cache_function;
+/
diff --git a/src/test/resources/bvt/parser/antlr_grammers_v4_plsql/examples-sql-script/show_errors.pks b/src/test/resources/bvt/parser/antlr_grammers_v4_plsql/examples-sql-script/show_errors.pks
new file mode 100644
index 0000000000..d400b7ebd1
--- /dev/null
+++ b/src/test/resources/bvt/parser/antlr_grammers_v4_plsql/examples-sql-script/show_errors.pks
@@ -0,0 +1,19 @@
+create or replace package show_errors
+is
+
+  procedure some_procedure;
+
+end show_errors;
+/
+
+show errors
+
+create or replace package show_errors
+is
+
+  procedure some_procedure;
+
+end show_errors;
+/
+
+show err
diff --git a/src/test/resources/bvt/parser/antlr_grammers_v4_plsql/examples-sql-script/substr_as_regular_id.pkb b/src/test/resources/bvt/parser/antlr_grammers_v4_plsql/examples-sql-script/substr_as_regular_id.pkb
new file mode 100644
index 0000000000..7a018dc672
--- /dev/null
+++ b/src/test/resources/bvt/parser/antlr_grammers_v4_plsql/examples-sql-script/substr_as_regular_id.pkb
@@ -0,0 +1,10 @@
+create or replace package body testPack as
+
+function blob_to_clob (blob_in in blob) return clob
+as  
+begin     
+    utl_raw.cast_to_varchar2(dbms_lob.substr(a, b, c));
+    return null;
+end blob_to_clob;
+
+end testPack;
\ No newline at end of file
diff --git a/src/test/resources/bvt/parser/antlr_grammers_v4_plsql/examples-sql-script/type_body_elements.sql b/src/test/resources/bvt/parser/antlr_grammers_v4_plsql/examples-sql-script/type_body_elements.sql
new file mode 100644
index 0000000000..ab52406920
--- /dev/null
+++ b/src/test/resources/bvt/parser/antlr_grammers_v4_plsql/examples-sql-script/type_body_elements.sql
@@ -0,0 +1,30 @@
+create or replace type type_body_elements
+as object
+(
+  some_string varchar2(64),
+  member function function_one
+  return varchar2,
+  member function function_two
+  return varchar2
+);
+/
+
+create or replace type body type_body_elements
+is
+
+  member function function_one
+  return varchar2
+  is
+  begin
+    return 'the function_one result';
+  end function_one;
+
+  member function function_two
+  return varchar2
+  is
+  begin
+    return 'the function_two result';
+  end function_two;
+
+end;
+/