improved oracle parser.

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

@@ -45,6 +45,10 @@ public abstract class SQLStatementImpl extends SQLObjectImpl implements SQLState
         return SQLUtils.toSQLString(this, dbType);
     }
 
+    public String toLowerCaseString() {
+        return SQLUtils.toSQLString(this, dbType, SQLUtils.DEFAULT_LCASE_FORMAT_OPTION);
+    }
+
     @Override
     protected void accept0(SQLASTVisitor visitor) {
         throw new UnsupportedOperationException(this.getClass().getName());

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

@@ -996,6 +996,7 @@ public class SQLSelectParser extends SQLParser {
         if (lexer.token == Token.FETCH) {
             lexer.nextToken();
             if (lexer.token == Token.FIRST
+                    || lexer.token == Token.NEXT
                     || lexer.identifierEquals(FnvHash.Constants.NEXT)) {
                 lexer.nextToken();
             } else {

src/test/java/com/alibaba/druid/bvt/sql/oracle/select/OracleSelectTest125.java

@@ -0,0 +1,70 @@
+/*
+ * 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.select;
+
+import com.alibaba.druid.sql.SQLUtils;
+import com.alibaba.druid.sql.ast.SQLStatement;
+import com.alibaba.druid.sql.ast.statement.SQLSelectStatement;
+import com.alibaba.druid.util.JdbcConstants;
+import junit.framework.TestCase;
+
+import java.util.List;
+
+
+public class OracleSelectTest125 extends TestCase {
+    public void test_0() throws Exception {
+        String sql = "SELECT\n" +
+                "specialact0_. ID AS id1_14_,\n" +
+                "specialact0_.gmt_create AS gmt_create2_14_,\n" +
+                "specialact0_.gmt_modified AS gmt_modified3_14_,\n" +
+                "specialact0_.issuer AS issuer4_14_,\n" +
+                "specialact0_.prisonarea AS prisonarea5_14_,\n" +
+                "specialact0_.prisonarea_code AS prisonarea_code6_14_,\n" +
+                "specialact0_. NAME AS name7_14_,\n" +
+                "specialact0_.prison AS prison8_14_,\n" +
+                "specialact0_.synopsis AS synopsis9_14_,\n" +
+                "specialact0_.sys_orgcode AS sys_orgcode10_14_,\n" +
+                "specialact0_.sys_orgname AS sys_orgname11_14_,\n" +
+                "specialact0_.sys_permname AS sys_permname12_14_,\n" +
+                "specialact0_.sys_perrmcode AS sys_perrmcode13_14_,\n" +
+                "specialact0_. TIMES AS times14_14_\n" +
+                "FROM\n" +
+                "hs_special_activities specialact0_\n" +
+                "WHERE\n" +
+                "1 = 1 offset ? ROWS FETCH NEXT ? ROWS ONLY";
+
+        List<SQLStatement> statementList = SQLUtils.parseStatements(sql, JdbcConstants.ORACLE);
+
+        assertEquals(1, statementList.size());
+
+        SQLSelectStatement stmt = (SQLSelectStatement) statementList.get(0);
+
+        assertEquals("SELECT specialact0_.ID AS id1_14_, specialact0_.gmt_create AS gmt_create2_14_, specialact0_.gmt_modified AS gmt_modified3_14_, specialact0_.issuer AS issuer4_14_, specialact0_.prisonarea AS prisonarea5_14_\n" +
+                "\t, specialact0_.prisonarea_code AS prisonarea_code6_14_, specialact0_.NAME AS name7_14_, specialact0_.prison AS prison8_14_, specialact0_.synopsis AS synopsis9_14_, specialact0_.sys_orgcode AS sys_orgcode10_14_\n" +
+                "\t, specialact0_.sys_orgname AS sys_orgname11_14_, specialact0_.sys_permname AS sys_permname12_14_, specialact0_.sys_perrmcode AS sys_perrmcode13_14_, specialact0_.TIMES AS times14_14_\n" +
+                "FROM hs_special_activities specialact0_\n" +
+                "WHERE 1 = 1\n" +
+                "OFFSET ? ROWS FETCH FIRST ? ROWS ONLY", stmt.toString());
+
+        assertEquals("select specialact0_.ID as id1_14_, specialact0_.gmt_create as gmt_create2_14_, specialact0_.gmt_modified as gmt_modified3_14_, specialact0_.issuer as issuer4_14_, specialact0_.prisonarea as prisonarea5_14_\n" +
+                "\t, specialact0_.prisonarea_code as prisonarea_code6_14_, specialact0_.NAME as name7_14_, specialact0_.prison as prison8_14_, specialact0_.synopsis as synopsis9_14_, specialact0_.sys_orgcode as sys_orgcode10_14_\n" +
+                "\t, specialact0_.sys_orgname as sys_orgname11_14_, specialact0_.sys_permname as sys_permname12_14_, specialact0_.sys_perrmcode as sys_perrmcode13_14_, specialact0_.TIMES as times14_14_\n" +
+                "from hs_special_activities specialact0_\n" +
+                "where 1 = 1\n" +
+                "offset ? rows fetch first ? rows only", stmt.toLowerCaseString());
+    }
+
+}