完全支持Oracle Interval表达式

git-svn-id: http://code.alibabatech.com/svn/druid/trunk@949 b9813039-fb51-4c41-a8b9-e21c2acb5095
2023-03-04 19:17:16 +00:00 · 2011-10-13 02:42:20 +00:00
parent 34fee37f94
commit 0a4e4dafb9
7 changed files with 283 additions and 20 deletions
@@ -0,0 +1,102 @@
+package com.alibaba.druid.bvt.sql.oracle;
+
+import com.alibaba.druid.sql.ast.statement.SQLSelectStatement;
+import com.alibaba.druid.sql.dialect.oracle.parser.OracleStatementParser;
+
+import junit.framework.Assert;
+import junit.framework.TestCase;
+
+public class OracleIntervalTest extends TestCase {
+
+    public void test_interval_literal() throws Exception {
+        String sql = "SELECT INTERVAL '123-2' YEAR(3) TO MONTH FROM DUAL";
+
+        OracleStatementParser parser = new OracleStatementParser(sql);
+        SQLSelectStatement stmt = (SQLSelectStatement) parser.parseStatementList().get(0);
+
+        String text = TestUtils.output(stmt);
+
+        Assert.assertEquals("SELECT INTERVAL '123-2' YEAR(3) TO MONTH\nFROM DUAL;\n", text);
+
+        System.out.println(text);
+    }
+    
+    public void test_interval_literal_1() throws Exception {
+        String sql = "SELECT INTERVAL '123' YEAR(3) FROM DUAL";
+        
+        OracleStatementParser parser = new OracleStatementParser(sql);
+        SQLSelectStatement stmt = (SQLSelectStatement) parser.parseStatementList().get(0);
+        
+        String text = TestUtils.output(stmt);
+        
+        Assert.assertEquals("SELECT INTERVAL '123' YEAR(3)\nFROM DUAL;\n", text);
+        
+        System.out.println(text);
+    }
+    
+    public void test_interval_literal_2() throws Exception {
+        String sql = "SELECT INTERVAL '5-3' YEAR TO MONTH + INTERVAL'20' MONTH FROM DUAL";
+        
+        OracleStatementParser parser = new OracleStatementParser(sql);
+        SQLSelectStatement stmt = (SQLSelectStatement) parser.parseStatementList().get(0);
+        
+        String text = TestUtils.output(stmt);
+        
+        Assert.assertEquals("SELECT INTERVAL '5-3' YEAR TO MONTH + INTERVAL '20' MONTH\nFROM DUAL;\n", text);
+        
+        System.out.println(text);
+    }
+    
+    public void test_interval_literal_3() throws Exception {
+        String sql = "SELECT INTERVAL '6-11' YEAR TO MONTH FROM DUAL";
+        
+        OracleStatementParser parser = new OracleStatementParser(sql);
+        SQLSelectStatement stmt = (SQLSelectStatement) parser.parseStatementList().get(0);
+        
+        String text = TestUtils.output(stmt);
+        
+        Assert.assertEquals("SELECT INTERVAL '6-11' YEAR TO MONTH\nFROM DUAL;\n", text);
+        
+        System.out.println(text);
+    }
+    
+    public void test_interval_literal_4() throws Exception {
+        String sql = "SELECT INTERVAL '4 5:12:10.222' DAY TO SECOND(3) FROM DUAL";
+        
+        OracleStatementParser parser = new OracleStatementParser(sql);
+        SQLSelectStatement stmt = (SQLSelectStatement) parser.parseStatementList().get(0);
+        
+        String text = TestUtils.output(stmt);
+        
+        Assert.assertEquals("SELECT INTERVAL '4 5:12:10.222' DAY TO SECOND(3)\nFROM DUAL;\n", text);
+        
+        System.out.println(text);
+    }
+    
+    public void test_interval_literal_5() throws Exception {
+        String sql = "SELECT INTERVAL '30.12345' SECOND(2,4) FROM DUAL";
+        
+        OracleStatementParser parser = new OracleStatementParser(sql);
+        SQLSelectStatement stmt = (SQLSelectStatement) parser.parseStatementList().get(0);
+        
+        String text = TestUtils.output(stmt);
+        
+        Assert.assertEquals("SELECT INTERVAL '30.12345' SECOND(2, 4)\nFROM DUAL;\n", text);
+        
+        System.out.println(text);
+    }
+    
+    public void test_interval() throws Exception {
+        String sql = "SELECT (SYSTIMESTAMP - order_date) DAY(9) TO SECOND from orders WHERE order_id = 2458;";
+
+        OracleStatementParser parser = new OracleStatementParser(sql);
+        SQLSelectStatement stmt = (SQLSelectStatement) parser.parseStatementList().get(0);
+
+        String text = TestUtils.output(stmt);
+
+        Assert.assertEquals("SELECT (SYSTIMESTAMP - order_date) DAY(9) TO SECOND\n" + "FROM orders\n"
+                            + "WHERE order_id = 2458;\n", text);
+
+        System.out.println(text);
+    }
+}
@@ -0,0 +1,36 @@
+package com.alibaba.druid.bvt.sql.oracle;
+
+import com.alibaba.druid.sql.ast.statement.SQLSelectStatement;
+import com.alibaba.druid.sql.dialect.oracle.parser.OracleStatementParser;
+
+import junit.framework.Assert;
+import junit.framework.TestCase;
+
+public class OracleNumberLiteralTest extends TestCase {
+
+    public void test_number_literal() throws Exception {
+        String sql = "SELECT 7, +255, 0.5, +6.34,25e-03, +6.34F, 0.5d, -1D FROM DUAL";
+
+        OracleStatementParser parser = new OracleStatementParser(sql);
+        SQLSelectStatement stmt = (SQLSelectStatement) parser.parseStatementList().get(0);
+
+        String text = TestUtils.output(stmt);
+
+        Assert.assertEquals("SELECT 7, 255, 0.5, 6.34, 0.025\n\t, 6.34F, 0.5D, -1.0D\nFROM DUAL;\n", text);
+
+        System.out.println(text);
+    }
+    
+    public void test_number_literal_2() throws Exception {
+        String sql = "SELECT BINARY_FLOAT_INFINITY FROM DUAL";
+
+        OracleStatementParser parser = new OracleStatementParser(sql);
+        SQLSelectStatement stmt = (SQLSelectStatement) parser.parseStatementList().get(0);
+
+        String text = TestUtils.output(stmt);
+
+        Assert.assertEquals("SELECT BINARY_FLOAT_INFINITY\nFROM DUAL;\n", text);
+
+        System.out.println(text);
+    }
+}