xiaofengtoo
- 浏览: 493842 次
- 性别:
- 来自: xiamen
-
最新评论
-
陈乐鹏：
你这个下载要怎么玩？我这里老提示未安装！
[转]使用ScriptX控件进行Web打印总结 -
zqb666kkk：
博主有示例代码吗
cxf ws-security 加密和签名的实现 -
mclin0704：
你好，请问WSDL2Java 可以用java实现吗？
Java2WSDL之java实现 -
hubiao0629：
楼主，这个文件会有不兼容的问题把。
mysql5忘记密码后的处理方法 -
zhaoyubetter：
OK，可以试试！多谢楼主
后台管理界面收集
相关推荐
- `CREATE OR REPLACE TRIGGER`：声明创建或替换名为`DEPARTMENT_AUTOINCREMENT`的触发器。 - `BEFORE INSERT ON DEPARTMENT`：在对`DEPARTMENT`表进行插入操作前触发。 - `FOR EACH ROW`：表示该触发器是对每一行...
+ COLUMN_ID + " INTEGER PRIMARY KEY AUTOINCREMENT, " + COLUMN_NAME + " TEXT, " + COLUMN_AGE + " INTEGER)"; ``` 这里的TABLE_NAME是表名，COLUMN_ID、COLUMN_NAME和COLUMN_AGE是列名，分别定义了主键ID、...
"(" + COLUMN_ID + " INTEGER PRIMARY KEY AUTOINCREMENT, " + COLUMN_USERNAME + " TEXT, " + COLUMN_PASSWORD + " TEXT)"; // ...其他方法 } ``` 在`DatabaseHelper`类中，我们需要实现`onUpgrade()`方法以...
+ COLUMN_ID + " INTEGER PRIMARY KEY AUTOINCREMENT," + COLUMN_NAME + " TEXT," + COLUMN_AGE + " INTEGER" + ")"; db.execSQL(CREATE_TABLE_SQL); } @Override public void onUpgrade(SQLiteDatabase db,...
"(" + COLUMN_ID + " INTEGER PRIMARY KEY AUTOINCREMENT," + COLUMN_NAME + " TEXT," + COLUMN_AGE + " INTEGER" + ")"; db.execSQL(CREATE_TABLE); } ``` 这里创建了一个名为`TABLE_NAME`的表，包含`COLUMN_...
+ COLUMN_ID + " INTEGER PRIMARY KEY AUTOINCREMENT," + COLUMN_NAME + " TEXT," + COLUMN_AGE + " INTEGER" + ")"; db.execSQL(CREATE_TABLE); } ``` 这里创建了一个名为`TABLE_NAME`的表，包含`COLUMN_ID`...
+ COLUMN_ID + " INTEGER PRIMARY KEY AUTOINCREMENT," + COLUMN_NAME + " TEXT," + COLUMN_AGE + " INTEGER" + ")"; db.execSQL(CREATE_TABLE); } ``` 这里创建了一个包含id（主键）、name和age三列的表。 ...
"(" + ColumnName.COLUMN_ID + " INTEGER PRIMARY KEY AUTOINCREMENT," + ColumnName.COLUMN_NAME + " TEXT," + ColumnName.COLUMN_AGE + " INTEGER" + ")"; public DatabaseHelper(Context context) { super...
+ COLUMN_ID + " INTEGER PRIMARY KEY AUTOINCREMENT," + COLUMN_NAME + " TEXT," + COLUMN_AGE + " INTEGER" + ")"; db.execSQL(CREATE_TABLE); } ``` 在上述代码中，我们创建了一个名为`TABLE_NAME`的表，...
COLUMN_ID + " INTEGER PRIMARY KEY AUTOINCREMENT, " + COLUMN_NAME + " TEXT, " + COLUMN_AGE + " INTEGER)"; public MyDatabaseHelper(Context context) { super(context, DATABASE_NAME, null, DATABASE_...
+ COLUMN_ID + " INTEGER PRIMARY KEY AUTOINCREMENT," + COLUMN_TITLE + " TEXT," + COLUMN_CONTENT + " TEXT" + ")"; public NoteDatabaseHelper(Context context) { super(context, DATABASE_NAME, null, ...
+ Users.COLUMN_NAME + " TEXT NOT NULL," + Users.COLUMN_EMAIL + " TEXT UNIQUE" + ")"; db.execSQL(CREATE_USERS_TABLE); } ``` 接下来，我们需要提供增删改查（CRUD）的方法。比如插入数据，可以创建一个`...
+ COLUMN_ID + " INTEGER PRIMARY KEY AUTOINCREMENT," + COLUMN_NAME + " TEXT," + COLUMN_AGE + " INTEGER)"; db.execSQL(CREATE_TABLE); } ``` 插入数据时，使用SQLiteDatabase的insert()方法： ```java ...
其中，`table_name`是你要创建的表格名称，`column1`是使用`AUTOINCREMENT`的整型字段，而`column2`、`column3`等是其他数据类型的列。 **3. 示例** 在给出的例子中，创建了一个名为`COMPANY`的表，包含以下列： - ...
+ COLUMN_ID + " INTEGER PRIMARY KEY AUTOINCREMENT," + COLUMN_USERNAME + " TEXT," + COLUMN_PASSWORD + " TEXT" + ")"; db.execSQL(CREATE_USER_TABLE); } ``` 接下来，我们实现插入（INSERT）操作，当用户...
COLUMN_ID + " INTEGER PRIMARY KEY AUTOINCREMENT," + COLUMN_NAME + " TEXT," + COLUMN_AGE + " INTEGER)"; db.execSQL(CREATE_TABLE); } // onUpgrade() 方法 @Override public void onUpgrade...
+ COLUMN_ID + " INTEGER PRIMARY KEY AUTOINCREMENT, " + COLUMN_NAME + " TEXT, " + COLUMN_AGE + " INTEGER);"; // ...构造函数和其他方法 } ``` 2. 添加数据（Add） 在添加数据时，我们需要使用SQL的...
COLUMN_ID + " INTEGER PRIMARY KEY AUTOINCREMENT, " + COLUMN_NAME + " TEXT, " + COLUMN_AGE + " INTEGER)"; db.execSQL(CREATE_TABLE); } @Override public void onUpgrade(SQLiteDatabase db, int old...
+ COLUMN_ID + " INTEGER PRIMARY KEY AUTOINCREMENT," + COLUMN_NAME + " TEXT," + COLUMN_AGE + " INTEGER" + ")"; db.execSQL(CREATE_TABLE); } ``` 3. 实现`onUpgrade()`方法：当数据库版本发生变化时，...