improved sql parser, support translate oracle to mysql

2023-03-04 19:17:16 +00:00 · 2014-11-19 10:23:43 +08:00
parent 0aa403bb4e
commit baad7dc724
10 changed files with 272 additions and 8 deletions
@@ -0,0 +1,26 @@
+package com.alibaba.druid.bvt.sql.oracle.tomysql;
+
+import org.junit.Assert;
+
+import junit.framework.TestCase;
+
+import com.alibaba.druid.sql.SQLUtils;
+
+public class OracleToMySql_PageTest extends TestCase {
+
+    public void test_page() throws Exception {
+        String sql = "SELECT XX.*, ROWNUM AS RN" + //
+                     "\nFROM (SELECT *" + //
+                     "\n\tFROM t" + //
+                     "\n\tORDER BY id" + //
+                     "\n\t) XX" + //
+                     "\nWHERE ROWNUM <= 10";
+
+        String mysqlSql = SQLUtils.translateOracleToMySql(sql);
+        Assert.assertEquals("SELECT *"//
+                            + "\nFROM t"//
+                            + "\nORDER BY id"//
+                            + "\nLIMIT 10", mysqlSql);
+        System.out.println(mysqlSql);
+    }
+}
@@ -0,0 +1,29 @@
+package com.alibaba.druid.bvt.sql.oracle.tomysql;
+
+import org.junit.Assert;
+
+import junit.framework.TestCase;
+
+import com.alibaba.druid.sql.SQLUtils;
+
+public class OracleToMySql_PageTest1 extends TestCase {
+
+    public void test_page() throws Exception {
+        String sql = "SELECT *" + //
+                     "\nFROM (SELECT XX.*, ROWNUM AS RN" + //
+                     "\n\tFROM (SELECT *" + //
+                     "\n\t\tFROM t" + //
+                     "\n\t\tORDER BY id" + //
+                     "\n\t\t) XX" + //
+                     "\n\tWHERE ROWNUM <= 20" + //
+                     "\n\t) XXX" + //
+                     "\nWHERE RN > 10";
+
+        String mysqlSql = SQLUtils.translateOracleToMySql(sql);
+        Assert.assertEquals("SELECT *"//
+                            + "\nFROM t"//
+                            + "\nORDER BY id"//
+                            + "\nLIMIT 10, 10", mysqlSql);
+        System.out.println(mysqlSql);
+    }
+}
@@ -0,0 +1,26 @@
+package com.alibaba.druid.bvt.sql.oracle.tomysql;
+
+import org.junit.Assert;
+
+import junit.framework.TestCase;
+
+import com.alibaba.druid.sql.SQLUtils;
+
+public class OracleToMySql_PageTest2 extends TestCase {
+
+    public void test_page() throws Exception {
+        String sql = "SELECT XX.*, ROWNUM AS RN" + //
+                     "\nFROM (SELECT *" + //
+                     "\n\tFROM t" + //
+                     "\n\tORDER BY id" + //
+                     "\n\t) XX" + //
+                     "\nWHERE ROWNUM < 10";
+
+        String mysqlSql = SQLUtils.translateOracleToMySql(sql);
+        Assert.assertEquals("SELECT *"//
+                            + "\nFROM t"//
+                            + "\nORDER BY id"//
+                            + "\nLIMIT 9", mysqlSql);
+        System.out.println(mysqlSql);
+    }
+}