android.database.sqlite.SQLiteException: duplicate column name: text (code 1): 之类的问题解决
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2022-05-01 18:15:49
最近在回看郭霖的第一行代码,在看到sqllite部分时,自己新建了两个表,建表的语句如下:
(1)
public static final string create_db_book =...
最近在回看郭霖的第一行代码,在看到sqllite部分时,自己新建了两个表,建表的语句如下:
(1)
public static final string create_db_book = "create table book(" + "id integer primary key autoincrement," + "author text," + "price real," + "pages integer," + "name text)"; public static final string create_db_person = "create table person(" + "id integer primary key autoincrement," + "name, text," + "sex ,text)";
(2)
public static final string create_db_book = "create table book(" + "id integer primary key autoincrement," + "author text," + "price real," + "pages integer," + "name text)"; public static final string create_db_person = "create table person(" + "id integer primary key autoincrement," + "name text," + "sex text)";
错误截图:
对就是这两个表,建成以后,死活报如上错误,不行,换真机,各种尝试均失败,后来经过一番摸索,才发现自己的建表语句有bug 。。。。。。
仔细看,person 表,自己手残不小心在sql语句中name和sex后加了一个逗号,关键就在这,加上这个逗号就表示,这个表中有了重复字段,这数据库是不能忍的。
记录在这给自己提个醒,以后写代码,一定要认真。