Android SQLite数据库判断某张表是否存在的语句

1、可以在创建表之前判断，这样就不会重新创建，create table if not exists Student(name text primary key, code integer); 比平时多了if not exists

Cursor cursor = db.rawQuery("select name from sqlite_master where type='table';", null);
while(cursor.moveToNext()){
//遍历出表名
String name = cursor.getString(0);
Log.i("System.out", name);
}

String sql = "select count(*) as c from sqlite_master where type ='table' and name ='Student';";
cursor = db.rawQuery(sql, null);
if(cursor.moveToNext()){
int count = cursor.getInt(0);
if(count>0){
result = true;
}
}