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我只想从Android数据库返回和整数_Android_Database - Fatal编程技术网

我只想从Android数据库返回和整数

我只想从Android数据库返回和整数,android,database,Android,Database,我已经建立了一个工作数据库,希望返回max(\u id)。不过我不想要光标,我知道它将是,我只想返回数字。有什么办法可以质疑这个问题吗?我想这就是你要找的 SQLiteDatabase db; // initialize the db SQLiteStatement statement = null; try { db.compileStatement("select max(_id) from table"); int max = statement.simpleQueryFo

我已经建立了一个工作数据库,希望返回
max(\u id)
。不过我不想要光标,我知道它将是,我只想返回数字。有什么办法可以质疑这个问题吗?

我想这就是你要找的

SQLiteDatabase db;
// initialize the db
SQLiteStatement statement = null;
try {
    db.compileStatement("select max(_id) from table");
    int max = statement.simpleQueryForLong();
} catch (SQLException e) {
    // handle
} finally {
    if (statement != null) {
        statement.close();
    }
}