improve Oracle SQL Parser

2023-03-04 19:17:16 +00:00 · 2012-12-28 12:56:38 +08:00
parent 539d297c98
commit ad114ac9cf
16 changed files with 380 additions and 21 deletions
@@ -0,0 +1,85 @@
+/*
+ * 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 OracleCreateDbLinkTest extends OracleTest {
+
+    public void test_0() throws Exception {
+        String sql = //
+        "CREATE PUBLIC DATABASE LINK remote USING 'remote'; ";
+
+        OracleStatementParser parser = new OracleStatementParser(sql);
+        List<SQLStatement> statementList = parser.parseStatementList();
+        SQLStatement statement = statementList.get(0);
+        print(statementList);
+
+        Assert.assertEquals("CREATE PUBLIC DATABASE LINK remote USING '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 = //
+        "CREATE DATABASE LINK local CONNECT TO hr IDENTIFIED BY hr USING 'local';";
+
+        OracleStatementParser parser = new OracleStatementParser(sql);
+        List<SQLStatement> statementList = parser.parseStatementList();
+        SQLStatement statement = statementList.get(0);
+        print(statementList);
+
+        Assert.assertEquals("CREATE DATABASE LINK local CONNECT TO hr IDENTIFIED BY hr USING 'local'",
+                            SQLUtils.toSQLString(statement, JdbcConstants.ORACLE));
+
+        OracleSchemaStatVisitor visitor = new OracleSchemaStatVisitor();
+        statement.accept(visitor);
+
+        Assert.assertEquals(0, visitor.getTables().size());
+    }
+    
+    
+    public void test_2() throws Exception {
+        String sql = //
+        "CREATE DATABASE LINK remote.us.oracle.com CONNECT TO CURRENT_USER USING 'remote';";
+
+        OracleStatementParser parser = new OracleStatementParser(sql);
+        List<SQLStatement> statementList = parser.parseStatementList();
+        SQLStatement statement = statementList.get(0);
+        print(statementList);
+
+        Assert.assertEquals("CREATE DATABASE LINK remote.us.oracle.com CONNECT TO CURRENT_USER USING 'remote'",
+                            SQLUtils.toSQLString(statement, JdbcConstants.ORACLE));
+
+        OracleSchemaStatVisitor visitor = new OracleSchemaStatVisitor();
+        statement.accept(visitor);
+
+        Assert.assertEquals(0, visitor.getTables().size());
+    }
+}