Question

当我将我的项目从codeigniter 2更新为codeigniter 3.1.0时，我发现错误

您的SQL语法有错误;检查手册对应于您的MySQL服务器版本，以便使用正确的语法靠近＆＃39; SET Spinner spinner = new Spinner(this); ArrayAdapter<String> spinnerArrayAdapter = new ArrayAdapter<String>(this, android.R.layout.simple_spinner_item, spinnerArray); //selected item will look like a spinner set from XML spinnerArrayAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item); spinner.setAdapter(spinnerArrayAdapter); spinner.setOnItemSelectedListener(new OnItemSelectedListener() { @Override public void onItemSelected(AdapterView<?> parentView, View selectedItemView, int position, long id) { // Visible the second spinner and set it data on the basis of selection showDataOfSecondSpinnerOnBasisOfSelection(spinnerArray[position]); } @Override public void onNothingSelected(AdapterView<?> parentView) { // your code here } }); = 1475123991，last_activity = ＆＃39;一个：5：{S：8：\＆＃34;同一性\＆＃34 ;; S：5：\＆＃34; ADM＆＃39;在第1行

user_data

文件名：C：/wamp64/www/hosteliam/system/database/DB_driver.php

行号：691`

这是我的第691行 UPDATE SET `last_activity` = 1475123991, `user_data` = 'a:5:{s:8:\"identity\";s:5:\"admin\";s:8:\"username\";s:5:\"admin\";s:5:\"email\";s:15:\"admin@admin.com\";s:7:\"user_id\";s:1:\"1\";s:14:\"old_last_login\";s:10:\"1475123252\";}' WHERE `session_id` = '6e963e57c9a5f087a5fcd39d9e2cdaa8'

经历了很多方面，但没有找到合适的解决方案，现在实际上并没有发生错误

Answer 1

UPDATE语句中需要有一个表名

  UPDATE tablename SET col = ... 
         ^^^^^^^^^

Answer 2

您缺少table_name。

UPDATE table_name SET `last_activity` = 1475123991, `user_data` = 'a:5:{s:8:\"identity\";s:5:\"admin\";s:8:\"username\";s:5:\"admin\";s:5:\"email\";s:15:\"admin@admin.com\";s:7:\"user_id\";s:1:\"1\";s:14:\"old_last_login\";s:10:\"1475123252\";}' WHERE `session_id` = '6e963e57c9a5f087a5fcd39d9e2cdaa8'

登录时获取数据库错误

2 个答案: