Question

有没有办法创建没有AUTOINCREMENT列的表？

我已尝试过此链接的解决方案，但它对我不起作用。 prevent autoincrementing integer primary key?

public static final String KEY_ID = "ROW_ID";                   
public static final String BOOK   = "books";    
public static final String CAR      = "cars";   
private static final String BOOK_CAR_TABLE = "BOOK_CAR_Table";
private static final String[] ALL_KEYS = new String[] {KEY_ID, BOOK, CAR};

private static final String BOOK_CAR_CREATE =           
 "CREATE TABLE " + BOOK_CAR_TABLE + "("+ 
                                KEY_ID + " INTEGER PRIMARY KEY," + 
                                BOOK + " TEXT," + 
                                CAR + " TEXT)";

据我所知，当我添加INTEGER PRIMARY KEY时，它会将KEY_ID转换为AUTOINCREMENT列。

public static final String KEY_ID = "ROW_ID";                   
public static final String BOOK   = "books";    
public static final String CAR      = "cars";   
private static final String BOOK_CAR_TABLE = "BOOK_CAR_Table";
private static final String[] ALL_KEYS = new String[] {KEY_ID, BOOK, CAR};

private static final String BOOK_CAR_CREATE =           
 "CREATE TABLE " + BOOK_CAR_TABLE + "("+ 
                                KEY_ID + " INTEGER," + 
                                BOOK + " TEXT," + 
                                CAR + " TEXT)";

AUTOINCREMENT rowid列是由它自己创建的，它是怎么发生的？?????

我不想要这个AUTOINCREMENT列。

我该如何防止这种情况？

谢谢

编辑：添加代码

private static final String BOOK_CAR_CREATE =           
 "CREATE TABLE " + BOOK_CAR_TABLE + "("+ 
                                KEY_ID + " INTEGER," + 
                                BOOK + " TEXT," + 
                                CAR + " TEXT) WITHOUT ROWID";

我已经尝试过了，这是强行关闭的。我想这是因为SQLite版本？

Answer 1

您可以指定WITHOUT ROWID，但仍需要PRIMARY KEY。

例如：

CREATE TABLE "table"("key" TEXT PRIMARY KEY, "value" TEXT) WITHOUT ROWID

这需要sqlite 3.8.2或更高版本。问题也标有android-sqlite，因此可能the sqlite version on your Android device更早。

进一步阅读：http://www.sqlite.org/withoutrowid.html

为什么SQLite数据库rowid由它自己创建？ Android的

1 个答案: