2013-08-20 2 views
1

Мой код содержит класс базы данных.база данных "CREATE TABLE IF NOT EXISTS" синтаксическая ошибка

clasdbOpenHelper.java

package example.events1; 

import android.content.Context; 
import android.database.Cursor; 
import android.database.SQLException; 
import android.database.sqlite.SQLiteDatabase; 
import android.database.sqlite.SQLiteOpenHelper; 


public class classdbOpenHelper extends SQLiteOpenHelper { 

    public static final String KEY_ROWID = "_id"; 
    public static final String KEY_DESC = "countdesc"; 
    public static final String KEY_DATE = "countdate"; 
    public static final String KEY_EVENT = "countevent"; 
    public static final String DATABASE_NAME= "countdb"; 
    public static final String DATABASE_TABLE = "countable"; 
    public static final int DATABASE_VERSION = 1; 


    public classdbOpenHelper(Context context) { 
     super(context, DATABASE_NAME, null, DATABASE_VERSION); 
     // TODO Auto-generated constructor stub 
    } 

    @Override 
    public void onCreate(SQLiteDatabase db) { 

     String CREATE_CONTACTS_TABLE = "CREATE TABLE IF NOT EXISTS" + DATABASE_TABLE + "(" 
       + KEY_ROWID + " INTEGER PRIMARY KEY AUTOINCREMENT, " + KEY_DESC + " TEXT, " + KEY_DATE + " TEXT, " + KEY_EVENT + " TEXT )"; 
     db.execSQL(CREATE_CONTACTS_TABLE); 
    } 


    @Override 
    public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) { 
     // TODO Auto-generated method stub 
     db.execSQL("DROP TABLE IF EXITS " + DATABASE_TABLE); 
     onCreate(db); 

    } 


    public Cursor fetchAllEvents() { 
     SQLiteDatabase db = this.getReadableDatabase(); 

     Cursor mCursor = db.query(DATABASE_TABLE, new String[] {KEY_ROWID, 
       KEY_DESC, KEY_DATE, KEY_EVENT }, 
     null, null, null, null, null); 
     if (mCursor != null) { 
     mCursor.moveToFirst(); 
     } 
     return mCursor; 
    } 

    public Cursor fetchEventByName(String inputText,String datevalue) throws SQLException { 
     SQLiteDatabase db = this.getReadableDatabase(); 

     Cursor mCursor = null; 
     if (inputText == null || inputText.length() == 0) { 
     mCursor = db.query(DATABASE_TABLE, new String[] {KEY_ROWID, 
       KEY_DESC, KEY_DATE, KEY_EVENT }, 
     null, null, null, null, null); 
     } 
     else { 
      mCursor = db.rawQuery("SELECT * FROM countable WHERE countdesc = ? AND countdate = ?", new String[] {inputText,datevalue});   
     } 

     if (mCursor != null) { 
     mCursor.moveToFirst(); 
     } 
     return mCursor; 
    } 

    public void delete(long id) { 
     SQLiteDatabase db = this.getReadableDatabase(); 

     db.delete(DATABASE_TABLE, KEY_ROWID + " = ?", 
       new String[] { String.valueOf(id)}); 
     db.close(); 
    } 
} 

LogCat

08-20 04:32:26.411: E/SQLiteLog(839): (1) near "EXISTScountable": syntax error 
08-20 04:32:26.681: E/AndroidRuntime(839): FATAL EXCEPTION: main 
08-20 04:32:26.681: E/AndroidRuntime(839): java.lang.RuntimeException: Unable to start activity ComponentInfo{example.events1/example.events1.Getclicker}: android.database.sqlite.SQLiteException: near "EXISTScountable": syntax error (code 1): , while compiling: CREATE TABLE IF NOT EXISTScountable(_id INTEGER PRIMARY KEY AUTOINCREMENT, countdesc TEXT, countdate TEXT, countevent TEXT ) 
08-20 04:32:26.681: E/AndroidRuntime(839): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2180) 
08-20 04:32:26.681: E/AndroidRuntime(839): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2230) 
08-20 04:32:26.681: E/AndroidRuntime(839): at android.app.ActivityThread.access$600(ActivityThread.java:141) 
08-20 04:32:26.681: E/AndroidRuntime(839): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1234) 
08-20 04:32:26.681: E/AndroidRuntime(839): at android.os.Handler.dispatchMessage(Handler.java:99) 
08-20 04:32:26.681: E/AndroidRuntime(839): at android.os.Looper.loop(Looper.java:137) 
08-20 04:32:26.681: E/AndroidRuntime(839): at android.app.ActivityThread.main(ActivityThread.java:5041) 
08-20 04:32:26.681: E/AndroidRuntime(839): at java.lang.reflect.Method.invokeNative(Native Method) 
08-20 04:32:26.681: E/AndroidRuntime(839): at java.lang.reflect.Method.invoke(Method.java:511) 
08-20 04:32:26.681: E/AndroidRuntime(839): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793) 
08-20 04:32:26.681: E/AndroidRuntime(839): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560) 
08-20 04:32:26.681: E/AndroidRuntime(839): at dalvik.system.NativeStart.main(Native Method) 
08-20 04:32:26.681: E/AndroidRuntime(839): Caused by: android.database.sqlite.SQLiteException: near "EXISTScountable": syntax error (code 1): , while compiling: CREATE TABLE IF NOT EXISTScountable(_id INTEGER PRIMARY KEY AUTOINCREMENT, countdesc TEXT, countdate TEXT, countevent TEXT ) 
08-20 04:32:26.681: E/AndroidRuntime(839): at android.database.sqlite.SQLiteConnection.nativePrepareStatement(Native Method) 
08-20 04:32:26.681: E/AndroidRuntime(839): at android.database.sqlite.SQLiteConnection.acquirePreparedStatement(SQLiteConnection.java:882) 
08-20 04:32:26.681: E/AndroidRuntime(839): at android.database.sqlite.SQLiteConnection.prepare(SQLiteConnection.java:493) 
08-20 04:32:26.681: E/AndroidRuntime(839): at android.database.sqlite.SQLiteSession.prepare(SQLiteSession.java:588) 
08-20 04:32:26.681: E/AndroidRuntime(839): at android.database.sqlite.SQLiteProgram.<init>(SQLiteProgram.java:58) 
08-20 04:32:26.681: E/AndroidRuntime(839): at android.database.sqlite.SQLiteStatement.<init>(SQLiteStatement.java:31) 
08-20 04:32:26.681: E/AndroidRuntime(839): at android.database.sqlite.SQLiteDatabase.executeSql(SQLiteDatabase.java:1663) 
08-20 04:32:26.681: E/AndroidRuntime(839): at android.database.sqlite.SQLiteDatabase.execSQL(SQLiteDatabase.java:1594) 
08-20 04:32:26.681: E/AndroidRuntime(839): at example.events1.classdbOpenHelper.onCreate(classdbOpenHelper.java:31) 
08-20 04:32:26.681: E/AndroidRuntime(839): at android.database.sqlite.SQLiteOpenHelper.getDatabaseLocked(SQLiteOpenHelper.java:252) 
08-20 04:32:26.681: E/AndroidRuntime(839): at android.database.sqlite.SQLiteOpenHelper.getReadableDatabase(SQLiteOpenHelper.java:188) 
08-20 04:32:26.681: E/AndroidRuntime(839): at example.events1.classdbOpenHelper.fetchEventByName(classdbOpenHelper.java:57) 
08-20 04:32:26.681: E/AndroidRuntime(839): at example.events1.Getclicker.onCreate(Getclicker.java:36) 
08-20 04:32:26.681: E/AndroidRuntime(839): at android.app.Activity.performCreate(Activity.java:5104) 
08-20 04:32:26.681: E/AndroidRuntime(839): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1080) 
08-20 04:32:26.681: E/AndroidRuntime(839): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2144) 
08-20 04:32:26.681: E/AndroidRuntime(839): ... 11 more 
+0

Пожалуйста, попробуйте следующее http://stackoverflow.com/questions/4098008/sqlite-create-table-if-doesnt-exist – lakshmi

ответ

10

дают пространство после EXISTS как этот

String CREATE_CONTACTS_TABLE = "CREATE TABLE IF NOT EXISTS " + DATABASE_TABLE + "(" 
      + KEY_ROWID + " INTEGER PRIMARY KEY AUTOINCREMENT, " + KEY_DESC + " TEXT, " + KEY_DATE + " TEXT, " + KEY_EVENT + " TEXT )"; 
+0

gd job #kalyan pvs – Gautam

4

у вас нет места между EXISTS и именем таблицы, countable в вашем случае.