Question

尝试使用whereClause：

更新匹配的行时出现以下错误

android.database.sqlite.SQLiteException: near "AS": syntax error (code 1): , 
while compiling: 
UPDATE messages SET message=? WHERE (user_id = ? ) AND (message = ? ) AND (time = ? AS long) AND (chat_with_user_id = ? ) AND (from_me = ? AS integer ) AND (user_full_name = ? )

我正在使用的代码是：

int fromMeInt = 0;
if (fromMe) {
    fromMeInt = 1;
}

ContentValues dataToInsert = new ContentValues();
dataToInsert.put(SQLiteHelper.COLUMN_MESSAGE, urlFileName);

String userId ="("+ SQLiteHelper.COLUMN_USER_ID+" = ? )";
String message ="("+ SQLiteHelper.COLUMN_MESSAGE+" = ? )";
String time = "("+SQLiteHelper.COLUMN_TIME_STAMP+" = ? AS long)";
String chatWithId ="("+ SQLiteHelper.COLUMN_CHAT_WITH_USER_ID+" = ? )";
String fromMeS = "("+SQLiteHelper.COLUMN_FROM_ME+" = ? AS integer )";
String UserNamee = "("+SQLiteHelper.COLUMN_USER_NAME+" = ? )";

String where = userId +" AND "+ message +" AND "+ time +" AND "+ chatWithId +" AND "+ fromMeS +" AND "+ UserNamee;
String[] whereArgs = new String[] {String.valueOf(myUserId),
        String.valueOf(message),
        String.valueOf(timeStamp),
        String.valueOf(chatWithUserId),
        String.valueOf(fromMeInt),
        String.valueOf(UserName)};

int count = database.update(SQLiteHelper.TABLE_MESSAGES, dataToInsert, where, whereArgs);
Lg.info(TAG, "updateMessage updated: " + count);
Lg.info(TAG, "updateMessage where: " + where);

任何建议都会有所帮助，在此先感谢。

Answer 1

要转换数据类型，您必须使用CAST expression：

UPDATE messages
SET message = ?
WHERE user_id = ?
  AND message = ?
  AND time = CAST(? AS long)
  AND chat_with_user_id = ?
  AND from_me = CAST(? AS integer)
  AND user_full_name = ?;

在＆＃34; AS＆＃34;：语法错误（代码1）SQLite中的错误

1 个答案: