improve oracle sql parser, support drop database link statement

2023-03-04 19:17:16 +00:00 · 2012-12-29 11:52:26 +08:00
parent ad114ac9cf
commit 4901e6af96
7 changed files with 189 additions and 0 deletions
@@ -0,0 +1,67 @@
+/*
+ * Copyright 1999-2011 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;
+
+import java.util.List;
+
+import org.junit.Assert;
+
+import com.alibaba.druid.sql.OracleTest;
+import com.alibaba.druid.sql.SQLUtils;
+import com.alibaba.druid.sql.ast.SQLStatement;
+import com.alibaba.druid.sql.dialect.oracle.parser.OracleStatementParser;
+import com.alibaba.druid.sql.dialect.oracle.visitor.OracleSchemaStatVisitor;
+import com.alibaba.druid.util.JdbcConstants;
+
+public class OracleDropDbLinkTest extends OracleTest {
+
+    public void test_0() throws Exception {
+        String sql = //
+        "DROP PUBLIC DATABASE LINK remote";
+
+        OracleStatementParser parser = new OracleStatementParser(sql);
+        List<SQLStatement> statementList = parser.parseStatementList();
+        SQLStatement statement = statementList.get(0);
+        print(statementList);
+
+        Assert.assertEquals("DROP PUBLIC DATABASE LINK remote",
+                            SQLUtils.toSQLString(statement, JdbcConstants.ORACLE));
+
+        OracleSchemaStatVisitor visitor = new OracleSchemaStatVisitor();
+        statement.accept(visitor);
+
+        Assert.assertEquals(0, visitor.getTables().size());
+    }
+
+    public void test_1() throws Exception {
+        String sql = //
+        "DROP DATABASE LINK local;";
+
+        OracleStatementParser parser = new OracleStatementParser(sql);
+        List<SQLStatement> statementList = parser.parseStatementList();
+        SQLStatement statement = statementList.get(0);
+        print(statementList);
+
+        Assert.assertEquals("DROP DATABASE LINK local",
+                            SQLUtils.toSQLString(statement, JdbcConstants.ORACLE));
+
+        OracleSchemaStatVisitor visitor = new OracleSchemaStatVisitor();
+        statement.accept(visitor);
+
+        Assert.assertEquals(0, visitor.getTables().size());
+    }
+
+}