Question

我得到了一个例外，我无法弄清楚为什么会被抛出。当我添加表消息时出现异常。请看一看，看看是否有错过的错误。提前谢谢。

例外：

 Caused by: android.database.sqlite.SQLiteException: near "From": syntax error (code 1): , while compiling: CREATE TABLE Messages (UniqueId TEXT PRIMARY KEY,From TEXT,To TEXT,Subject TEXT,Body TEXT,HandledOn TEXT,IsRead INTEGER,CreatedOn TEXT,UpdatedOn TEXT,DeletedOn TEXT);

导致异常的语句，在SQLiteOpenHelper中：

@Override
public void onCreate(android.database.sqlite.SQLiteDatabase db) {
    String CREATE_MESSAGES_TABLE =
            "CREATE TABLE " + TABLE_MESSAGES + "("
                    + COLUMN_UNIQUEID + " TEXT PRIMARY KEY,"
                    + COLUMN_FROM + " TEXT,"
                    + COLUMN_TO + " TEXT,"
                    + COLUMN_SUBJECT + " TEXT,"
                    + COLUMN_BODY + " TEXT,"
                    + COLUMN_HANDLEDON + " TEXT,"
                    + COLUMN_ISREAD + " INTEGER,"
                    + COLUMN_CREATEDON + " TEXT,"
                    + COLUMN_UPDATEDON + " TEXT,"
                    + COLUMN_DELETEDON + " TEXT"
                    + ");";

    String CREATE_CONTACTS_TABLE =
            "CREATE TABLE " + TABLE_CONTACTS + "("
                    + COLUMN_UNIQUEID + " TEXT PRIMARY KEY,"
                    + COLUMN_NAME + " TEXT,"
                    + COLUMN_EMAIL + " TEXT,"
                    + COLUMN_CREATEDON + " TEXT,"
                    + COLUMN_UPDATEDON + " TEXT,"
                    + COLUMN_DELETEDON + " TEXT"
                    + ");";

    db.execSQL(CREATE_MESSAGES_TABLE);
    db.execSQL(CREATE_CONTACTS_TABLE);
}

Answer 1

您正在使用受保护的关键字，例如“from”和“to”作为表名，这在SQLite中是不允许的：

https://www.sqlite.org/lang_keywords.html

SQLite异常 - 创建表

1 个答案: