rawQuery（）语法错误

问题描述

我想执行使用SQLite在Android的rawQuery（）下面的SQL查询。结果
但我得到结果
         android.database.sqlite.SQLiteException：近状态：语法错误：，在编译：选择emp_id，日期，结束日期fromleave_plans1where状态=？

I want to execute the following SQL query using SQLite's rawQuery() in Android.
But I am getting
"android.database.sqlite.SQLiteException: near "status": syntax error: , while compiling: select emp_id,start_date,end_date fromleave_plans1where status = ?"

SQL查询：选择emp_id，起始日期，从leave_plans END_DATE，其中状态=批准或状态=待定

SQL query : select emp_id,start_date,end_date from leave_plans where status="approved" or status="pending"

和rawQuery我已经使用：

and rawQuery i have used :

db.rawQuery("select emp_id,start_date,end_date from" + TABLE_NAME + "where status = ?",new String[] {"approved","pending"});  

请帮忙

由于结果
sneha

Thanks
sneha

推荐答案

试试这个code：

String[] columns = { "emp_id", "start_date", "end_date" };
String[] whereArguments = { "approved", "pending" };
Cursor cursor = db.query(TABLE_NAME, columns, "status = ? OR status = ?", whereArguments, null, null, null);

这两个问号是在查询的第三个参数必要调用每个？字符引用一个元素在 whereArguments 阵列。因此，这个调用将转化为：

The two question marks are necessary in the third argument in the query call as each ? character references one element in the whereArguments array. So this call will translate to:

选择emp_id，日期，结束日期从{} TABLE_NAME WHERE状态=批准或状态=待定;

SELECT emp_id, start_date, end_date FROM {TABLE_NAME} WHERE status = "approved" OR status = "pending";

（通过任何字符串常量它重新presents其中{} TABLE_NAME显然将取代）。

(Where {TABLE_NAME} will obviously be replace by whatever String constant it represents.)

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