SQLite no such column | 易学教程

问题

I'm getting no such column exception when creating database to save title, content & sort it by date descending order, i've checked many times and unable to know the reason. My code is

public void onCreate(SQLiteDatabase sqLiteDatabase) {
    //create our table
    String CREATE_WISHES_TABLE = "CREATE TABLE " + Constants.TABLE_NAME + "(" +
                                  Constants.KEY_ID + " INTEGER PRIMARY KEY, " +
                                Constants.TITLE_NAME + " TEXT, " +
                                Constants.CONTENT_NAME + " TEXT, " +
                                Constants.DATE_NAME + "  LONG);";
    sqLiteDatabase.execSQL(CREATE_WISHES_TABLE);

}

My query statement is as follows:

public ArrayList<MyWish> getWishes() {

    String selectQuery = "SELECT * FROM " + Constants.TABLE_NAME;

    SQLiteDatabase sqLiteDatabase = this.getReadableDatabase();

    Cursor cursor = sqLiteDatabase.query(Constants.TABLE_NAME, new String[]{Constants.KEY_ID, Constants.TITLE_NAME, Constants.CONTENT_NAME,
                    Constants.DATE_NAME}, null, null, null, null, Constants.DATE_NAME + "DESC");
}

I'm getting the error in logcat as follows

10-27 17:18:04.272  E/SQLiteLog: (1) no such column: recorddateDESC
10-27 17:18:04.274  E/AndroidRuntime: FATAL EXCEPTION: main`
Caused by: android.database.sqlite.SQLiteException: no such column: recorddateDESC (code 1): , while compiling: SELECT _id, title, content, recorddate FROM wishes ORDER BY recorddateDESC
                                                                          `

回答1:

Caused by: android.database.sqlite.SQLiteException: no such column:

A SQLite exception that indicates there was an error with SQL parsing or execution.

You should add extra SPACE in DESC Section.

Rectify SELECT Statement.

 Cursor cursor = sqLiteDatabase.query(Constants.TABLE_NAME, new String[]{Constants.KEY_ID, Constants.TITLE_NAME, Constants.CONTENT_NAME,
                Constants.DATE_NAME}, null, null, null, null, Constants.DATE_NAME + " DESC ");

Then Clean-Rebuild-Run.

回答2:

You must add a space between the table name and the "DESC"

public ArrayList<MyWish> getWishes() {

String selectQuery = "SELECT * FROM " + Constants.TABLE_NAME;

SQLiteDatabase sqLiteDatabase = this.getReadableDatabase();

Cursor cursor = sqLiteDatabase.query(Constants.TABLE_NAME, new String[]{Constants.KEY_ID, Constants.TITLE_NAME, Constants.CONTENT_NAME,
                Constants.DATE_NAME}, null, null, null, null, Constants.DATE_NAME + " DESC");

回答3:

Add an extra space between Constants.DATE_NAME + " DESC". If it still shows the same error

Uninstall and Install your application.

回答4:

Apart from the other answers here, this can also occur when the column is defined in a trigger. For example, if you see it on trying to delete a row look for erroneous delete triggers in that table.

来源：https://stackoverflow.com/questions/46975068/sqlite-no-such-column

标签

android

sql

database

android-sqlite