任何人都可以帮助我：android.database.sqlite.SQLiteException: near ",": syntax error (code 1): ,

Question

请解决我的问题： 这是代码行

Cursor cursor = db.rawQuery("select * from Overhead_Table where IDNO="+incomingrecord[0]+" AND DATE_TIME LIKE "+DTTIME+"%" ,null);

我也试过：

Cursor cursor = db.rawQuery("select * from Overhead_Table where IDNO=? AND DATE_TIME LIKE ?%" ,new String[] {incomingrecord[0],DTTIME});

和

Cursor cursor = db.rawQuery("select * from Overhead_Table where IDNO=? AND DATE_TIME LIKE ?" ,new String[] {incomingrecord[0],DTTIME+"%"});

但是显示错误

android.database.sqlite.SQLiteException: near ",": syntax error (code 1): , while compiling: select * from Overhead_Table where IDNO=6765456765 AND DATE_TIME LIKE 14,01,2021

Answer 1

始终使用 ? 占位符：

String sql = "SELECT * FROM Overhead_Table WHERE IDNO = ? AND DATE_TIME LIKE ? || '%'";
Cursor cursor = db.rawQuery(sql , new String[] {incomingrecord[0], DTTIME});

我假设 incomingrecord[0] 和 DTTIME 都是字符串。