fix:update语句反引号删除问题 (#12)

Author: wuwen5

src/main/java/com/cenboomh/commons/ojdbc/SqlHelper.java

@@ -42,6 +42,7 @@
 import java.util.function.Predicate;
 import java.util.logging.Level;
 import java.util.logging.Logger;
+import java.util.stream.Collectors;
 
 /**
  * @author wuwen
@@ -202,7 +203,9 @@ public void visit(Insert insert) {
                     @Override
                     public void visit(Update update) {
                         super.visit(update);
-                        columnsProcess(update.getUpdateSets().get(0).getColumns());
+                        columnsProcess(update.getUpdateSets().stream()
+                                .flatMap(i -> i.getColumns().stream())
+                                .collect(Collectors.toList()));
                     }
 
                     @Override

src/test/java/com/cenboomh/commons/ojdbc/SqlHelperTest.java

@@ -63,6 +63,14 @@ void mysql2oracle() {
             assertEquals(test[1].toUpperCase(), SqlHelper.mysql2oracle(test[0]).toUpperCase());
         }
     }
+    
+    @Test
+    void issueUpdateBackquote() {
+        String sql = "UPDATE xxl_job_log_report         SET `running_count` = ?,          `suc_count` = ?,          `fail_count` = ?         WHERE `trigger_day` = ?";
+        String expeSql = "UPDATE XXL_JOB_LOG_REPORT SET RUNNING_COUNT = ?, SUC_COUNT = ?, FAIL_COUNT = ? WHERE TRIGGER_DAY = ?";
+        
+        assertEquals(expeSql, SqlHelper.mysql2oracle(sql).toUpperCase());
+    }