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Android 如何在sqlite中执行计数查询并将int作为行数_Android_Database_Sqlite - Fatal编程技术网

Android 如何在sqlite中执行计数查询并将int作为行数

Android 如何在sqlite中执行计数查询并将int作为行数,android,database,sqlite,Android,Database,Sqlite,我想用where子句检索数据库中保存的已计数行数,在SQlite中,我是初学者,对执行这个sql查询感到困惑 Select Count(*) From " + Table_Seekers + " where " + Uid + " = " + Table_Seekers 我想得到在db中计数的行数,其中传入Uid在db中是相同的?所以任何人都请帮忙 public void getReqMade(String Uid) { SQLiteDatabase database = getRea

我想用where子句检索数据库中保存的已计数行数,在SQlite中,我是初学者,对执行这个sql查询感到困惑

Select Count(*) From " + Table_Seekers + " where " + Uid + " = " + Table_Seekers
我想得到在db中计数的行数,其中传入Uid在db中是相同的?所以任何人都请帮忙

public void getReqMade(String Uid) {
    SQLiteDatabase database = getReadableDatabase();
    database.execSQL("Select Count(*) From " + Table_Seekers + " where " + Uid + " = " + Table_Seekers);
}

如果
Table\u
是表的名称,并且
Uid
是您要搜索的内容

Select Count(*) From Table_Seekers where Table_Seekers_field = Uid

您还应该以小写字母开始命名方法的参数。

在sqlite中?我想在sqlite android中执行此操作,那么存储此操作结果的数据类型是什么?如果这是您要查询的,则此查询将返回一个整数显示表定义。问题是什么?我建议您阅读sqlite数据库和游标的文档。这些将告诉您如何从查询中获取结果。