java - SQLiteException 没有这样的列 : plus (code 1)

Question

向已经工作的数据库添加更多列(添加了加号和减号)。我看过以前的答案，但我终生无法在我的语法中找到错误。

private static final String TAG = "DBAdapter";

// DB Fields
public static final String KEY_ROWID = "_id";
public static final int COL_ROWID = 0;
/*
 * CHANGE 1:
 */
// TODO: Setup your fields here:
public static final String KEY_NUMBER = "number";
public static final String KEY_LASTNAME = "lastname";
public static final String KEY_FIRSTNAME = "firstname";
public static final String KEY_POSITION = "position";
public static final String KEY_TIMEONICE = "timeonice";
public static final String KEY_PLUS = "plus";
public static final String KEY_MINUS = "minus";

// TODO: Setup your field numbers here (0 = KEY_ROWID, 1=...)
public static final int COL_NUMBER = 1;
public static final int COL_LASTNAME = 2;
public static final int COL_FIRSTNAME = 3;
public static final int COL_POSITION = 4;
public static final int COL_TIMEONICE = 5;
public static final int COL_PLUS = 6;
public static final int COL_MINUS = 7;



public static final String[] ALL_KEYS = new String[] {KEY_ROWID, KEY_NUMBER, KEY_LASTNAME, KEY_FIRSTNAME, KEY_POSITION, KEY_TIMEONICE,KEY_PLUS,KEY_MINUS};

// DB info: it's name, and the table we are using (just one).
public static final String DATABASE_NAME = "HOCKEY.db";
public static final String DATABASE_TABLE = "mainTable";
// Track DB version if a new version of your app changes the format.
public static final int DATABASE_VERSION = 7;   

private static final String DATABASE_CREATE_SQL = 
        "create table " + DATABASE_TABLE 
        + " (" + KEY_ROWID + " integer primary key autoincrement, "

        /*
         * CHANGE 2:
         */
        // TODO: Place your fields here!
        // + KEY_{...} + " {type} not null"
        //  - Key is the column name you created above.
        //  - {type} is one of: text, integer, real, blob
        //      (http://www.sqlite.org/datatype3.html)
        //  - "not null" means it is a required field (must be given a value).
        // NOTE: All must be comma separated (end of line!) Last one must have NO comma!!
        + KEY_NUMBER + " integer not null,"
        + KEY_LASTNAME + " string not null,"
        + KEY_FIRSTNAME + " string not null,"
        + KEY_POSITION + " string not null,"
        + KEY_TIMEONICE + " string"
        + KEY_PLUS + " integer,"
        + KEY_MINUS + " integer"

        // Rest  of creation:
        + ");";

日志猫

01-01 21:55:16.971: E/AndroidRuntime(3476): Process: com.example.timeonice, PID: 3476 01-01 21:55:16.971: E/AndroidRuntime(3476): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.timeonice/com.example.timeonice.MainActivity}: android.database.sqlite.SQLiteException: no such column: plus (code 1): , while compiling: SELECT DISTINCT _id, number, lastname, firstname, position, timeonice, plus, minus FROM mainTable 01-01 21:55:16.971: E/AndroidRuntime(3476): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2195) 01-01 21:55:16.971: E/AndroidRuntime(3476): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2245) 01-01 21:55:16.971: E/AndroidRuntime(3476): at android.app.ActivityThread.access$800(ActivityThread.java:135) 01-01 21:55:16.971: E/AndroidRuntime(3476): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1196) 01-01 21:55:16.971: E/AndroidRuntime(3476): at android.os.Handler.dispatchMessage(Handler.java:102) 01-01 21:55:16.971: E/AndroidRuntime(3476): at android.os.Looper.loop(Looper.java:136) 01-01 21:55:16.971: E/AndroidRuntime(3476): at android.app.ActivityThread.main(ActivityThread.java:5017) 01-01 21:55:16.971: E/AndroidRuntime(3476): at java.lang.reflect.Method.invokeNative(Native Method) 01-01 21:55:16.971: E/AndroidRuntime(3476): at java.lang.reflect.Method.invoke(Method.java:515) 01-01 21:55:16.971: E/AndroidRuntime(3476): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779) 01-01 21:55:16.971: E/AndroidRuntime(3476): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595) 01-01 21:55:16.971: E/AndroidRuntime(3476): at dalvik.system.NativeStart.main(Native Method) 01-01 21:55:16.971: E/AndroidRuntime(3476): Caused by: android.database.sqlite.SQLiteException: no such column: plus (code 1): , while compiling: SELECT DISTINCT _id, number, lastname, firstname, position, timeonice, plus, minus FROM mainTable 01-01 21:55:16.971: E/AndroidRuntime(3476): at android.database.sqlite.SQLiteConnection.nativePrepareStatement(Native Method) 01-01 21:55:16.971: E/AndroidRuntime(3476): at android.database.sqlite.SQLiteConnection.acquirePreparedStatement(SQLiteConnection.java:889) 01-01 21:55:16.971: E/AndroidRuntime(3476): at android.database.sqlite.SQLiteConnection.prepare(SQLiteConnection.java:500) 01-01 21:55:16.971: E/AndroidRuntime(3476): at android.database.sqlite.SQLiteSession.prepare(SQLiteSession.java:588) 01-01 21:55:16.971: E/AndroidRuntime(3476): at android.database.sqlite.SQLiteProgram.(SQLiteProgram.java:58) 01-01 21:55:16.971: E/AndroidRuntime(3476): at android.database.sqlite.SQLiteQuery.(SQLiteQuery.java:37) 01-01 21:55:16.971: E/AndroidRuntime(3476): at android.database.sqlite.SQLiteDirectCursorDriver.query(SQLiteDirectCursorDriver.java:44) 01-01 21:55:16.971: E/AndroidRuntime(3476): at android.database.sqlite.SQLiteDatabase.rawQueryWithFactory(SQLiteDatabase.java:1314) 01-01 21:55:16.971: E/AndroidRuntime(3476): at android.database.sqlite.SQLiteDatabase.queryWithFactory(SQLiteDatabase.java:1161) 01-01 21:55:16.971: E/AndroidRuntime(3476): at android.database.sqlite.SQLiteDatabase.query(SQLiteDatabase.java:1032) 01-01 21:55:16.971: E/AndroidRuntime(3476): at com.example.timeonice.DBAdapter.getAllRows(DBAdapter.java:159) 01-01 21:55:16.971: E/AndroidRuntime(3476): at com.example.timeonice.DBAdapter.deleteAll(DBAdapter.java:146) 01-01 21:55:16.971: E/AndroidRuntime(3476): at com.example.timeonice.MainActivity.onCreate(MainActivity.java:135) 01-01 21:55:16.971: E/AndroidRuntime(3476): at android.app.Activity.performCreate(Activity.java:5231) 01-01 21:55:16.971: E/AndroidRuntime(3476): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087) 01-01 21:55:16.971: E/AndroidRuntime(3476): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2159)

Answer 1

你在这之后少了一个逗号:

    + KEY_TIMEONICE + " string"

应该是:

    + KEY_TIMEONICE + " string,"