improve SQL Parser

2023-03-04 19:17:16 +00:00 · 2012-12-29 16:08:29 +08:00
parent 16ed4c1078
commit a60fe40542
10 changed files with 174 additions and 32 deletions
@@ -0,0 +1,97 @@
+/*
+ * 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 junit.framework.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.stat.TableStat;
+import com.alibaba.druid.util.JdbcConstants;
+
+public class OracleCreateTableTest14 extends OracleTest {
+
+    public void test_charTypes() throws Exception {
+        String sql = //
+        "create table T (" + //
+                "F1 CHAR(1)," + //
+                "F2 CHAR(1 BYTE)," + //
+                "F3 CHAR(1 CHAR)," + //
+                "F4 VARCHAR2(2)," + //
+                "F5 VARCHAR2(2 BYTE)," + //
+                "F6 VARCHAR2(2 CHAR)," + //
+                "F7 NCHAR(3 BYTE), " + //
+                "F8 NCHAR(3 CHAR), " + //
+                "F9 NCHAR(3), " + //
+                "F10 NVARCHAR2(4), " + //
+                "F11 NVARCHAR2(4 BYTE), " + //
+                "F12 NVARCHAR2(4 CHAR) " + //
+                ") ";
+
+        OracleStatementParser parser = new OracleStatementParser(sql);
+        List<SQLStatement> statementList = parser.parseStatementList();
+        SQLStatement statement = statementList.get(0);
+        print(statementList);
+
+        Assert.assertEquals(1, statementList.size());
+        
+        Assert.assertEquals( "CREATE TABLE T (" + //
+                "\n\tF1 CHAR(1)," + //
+                "\n\tF2 CHAR(1 BYTE)," + //
+                "\n\tF3 CHAR(1 CHAR)," + //
+                "\n\tF4 VARCHAR2(2)," + //
+                "\n\tF5 VARCHAR2(2 BYTE)," + //
+                "\n\tF6 VARCHAR2(2 CHAR)," + //
+                "\n\tF7 NCHAR(3 BYTE)," + //
+                "\n\tF8 NCHAR(3 CHAR)," + //
+                "\n\tF9 NCHAR(3)," + //
+                "\n\tF10 NVARCHAR2(4)," + //
+                "\n\tF11 NVARCHAR2(4 BYTE)," + //
+                "\n\tF12 NVARCHAR2(4 CHAR)" + //
+                "\n)", SQLUtils.toSQLString(statement, JdbcConstants.ORACLE));
+
+        OracleSchemaStatVisitor visitor = new OracleSchemaStatVisitor();
+        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());
+
+        Assert.assertEquals(1, visitor.getTables().size());
+
+        Assert.assertEquals(12, visitor.getColumns().size());
+
+        Assert.assertTrue(visitor.getColumns().contains(new TableStat.Column("T", "F1")));
+        Assert.assertTrue(visitor.getColumns().contains(new TableStat.Column("T", "F2")));
+        Assert.assertTrue(visitor.getColumns().contains(new TableStat.Column("T", "F3")));
+        Assert.assertTrue(visitor.getColumns().contains(new TableStat.Column("T", "F4")));
+        Assert.assertTrue(visitor.getColumns().contains(new TableStat.Column("T", "F5")));
+        Assert.assertTrue(visitor.getColumns().contains(new TableStat.Column("T", "F6")));
+        Assert.assertTrue(visitor.getColumns().contains(new TableStat.Column("T", "F7")));
+        Assert.assertTrue(visitor.getColumns().contains(new TableStat.Column("T", "F8")));
+        Assert.assertTrue(visitor.getColumns().contains(new TableStat.Column("T", "F9")));
+        Assert.assertTrue(visitor.getColumns().contains(new TableStat.Column("T", "F10")));
+        Assert.assertTrue(visitor.getColumns().contains(new TableStat.Column("T", "F11")));
+        Assert.assertTrue(visitor.getColumns().contains(new TableStat.Column("T", "F12")));
+    }
+}
@@ -26,10 +26,10 @@ public class PGFormatTest extends TestCase {
    public void test_0() throws Exception {
        String sql = "CREATE TABLE foo (fooid int, foosubid int, fooname text);";
        String formatedSql = SQLUtils.format(sql, JdbcUtils.POSTGRESQL);
-        Assert.assertEquals("CREATE TABLE foo (\n" + //
-                            "\tfooid int, \n" + //
-                            "\tfoosubid int, \n" + //
-                            "\tfooname text\n" + //
-                            ")", formatedSql);
+        Assert.assertEquals("CREATE TABLE foo (" + //
+                            "\n\tfooid int," + //
+                            "\n\tfoosubid int," + //
+                            "\n\tfooname text" + //
+                            "\n)", formatedSql);
    }
 }