blob

Pulling BLOB image data from MySQL in PHP

由 谁说胖子不能爱 提交于 2019-12-01 23:02:09
问题 I was reading from a few tutorials on how to upload my image into the DB as binary opposed to putting them on the server itself, well I got it to work like this: PHP: $image = chunk_split(base64_encode(file_get_contents($tmpfile))); mysql_query("INSERT INTO images (`img_location`, `caption`, `user`, `genre`, `when`) VALUES ('$image', '$caption', '$id', '$genre', '$when')"); My issue is how do you now pull it from the database, I've read several ways of doing it, tried them all, can't figure

store a pdf in mysql

由 孤人 提交于 2019-12-01 22:29:48
问题 How would you store a PDF document in a field in mysql? Currently I have a list of customers and each customer has a certificate with information about their account that they can give to other companies to prove that they're our customer. Currently their certificate is exported as a pdf and e-mailed to someone here at work (the customer gets a physical copy as well), and that person's mailbox is filled with these e-mails. I'd much prefer to just have it in the customer's record - allowing it

How to show on QML (Qt) from SQLite BLOB data as image?

由 社会主义新天地 提交于 2019-12-01 22:10:36
My code is like below. Name - as TEXT field, Photo - as BLOB data class SqlQueryModel: public QSqlQueryModel { Q_OBJECT QHash<int,QByteArray> *hash; public: explicit SqlQueryModel(QObject * parent) : QSqlQueryModel(parent) { hash = new QHash<int,QByteArray>; hash->insert(Qt::UserRole, QByteArray("Name")); hash->insert(Qt::UserRole + 1, QByteArray("Photo")); } inline RoleNameHash roleNames() const { return *hash; } }; Selecting data view = new QQuickView(); QSqlQueryModel *someSqlModel = new SqlQueryModel(this); someSqlModel->setQuery("SELECT Name, Photo FROM some_table"); QQmlContext *context

Pass parameter to BLOB object URL

由 一笑奈何 提交于 2019-12-01 21:58:03
Say I've got a reference to a html file as a Blob b and I create a URL for it, url = URL.createObjectURL(b); . This gives me something that looks like blob:http%3A//example.com/a0440b61-4850-4568-b6d1-329bae4a3276 I then tried opening this in an <iframe> with a GET parameter ?foo=bar , but it didn't work. How can I pass the parameter? var html ='<html><head><title>Foo</title></head><body><script>document.body.textContent = window.location.search<\/script></body></html>', b = new Blob([html], {type: 'text/html'}), url = URL.createObjectURL(b), ifrm = document.createElement('iframe'); ifrm.src =

JDBC 4's java.sql.Clob.free() method and backwards compatibility

由 心不动则不痛 提交于 2019-12-01 21:32:15
I'm investigating an interesting performance issue, where there are no calls to java.sql.Clob.free() on a frequently used resource. This method on Clob was introduced in Java 6 / JDBC 4, so it might well be that this is actually a regression introduced when upgrading from JDBC 3 to JDBC 4. Is this a known issue in the Oracle JDBC driver? Can it be said that before, Clobs somehow magically freed themselves, whereas with JDBC 4, they MUST be freed manually? Or is there a driver setting that can be used to stay compatible with JDBC 3? Note, the same applies to Blob , of course. Our application

Pulling BLOB image data from MySQL in PHP

由 我只是一个虾纸丫 提交于 2019-12-01 21:26:49
I was reading from a few tutorials on how to upload my image into the DB as binary opposed to putting them on the server itself, well I got it to work like this: PHP: $image = chunk_split(base64_encode(file_get_contents($tmpfile))); mysql_query("INSERT INTO images (`img_location`, `caption`, `user`, `genre`, `when`) VALUES ('$image', '$caption', '$id', '$genre', '$when')"); My issue is how do you now pull it from the database, I've read several ways of doing it, tried them all, can't figure it out, I'm not getting a MySQL error, here's how I'm trying it: $get_pics = mysql_query("SELECT * FROM

PHP show image as BLOB mysqli

由 非 Y 不嫁゛ 提交于 2019-12-01 21:16:18
I read all possible questions on StackOverflow, I asked all people who I know and no one can help me. I have table in database: CREATE TABLE IF NOT EXISTS `zdjecia` ( `id` int(11) NOT NULL, `imie_wlasciciela` varchar(50) NOT NULL, `zdjecie` blob NOT NULL, `nazwa` varchar(50) NOT NULL ) ENGINE=InnoDB DEFAULT CHARSET=latin1 AUTO_INCREMENT=16 I'm sorry for no English variables, but I want to keep all source without changes. imie_wlasciciela and nazwa aren't important in my problem. So zdjecie is a binary data of image And id is id. I have a file which should show image. // single_image.php <?php

Select distinct on blob

由 随声附和 提交于 2019-12-01 21:12:42
Is there a way to verify if the value in blob in more rows is identical in the Oracle database? The blob is the same column. I have the size of the blob stored in another column but I need to know if the value is equal too. The value stored is a serialized object. I would recommend adding another column which contains the hash of the blob value. When you store the blob you also calculate the hash value, using SHA256 for example, and store that. When you later want distinct values you just use this new column. 来源： https://stackoverflow.com/questions/12181045/select-distinct-on-blob

手把手教你如何购买学生服务器

由 旧街凉风 提交于 2019-12-01 19:35:01
现在云服务商对学生都是很优惠的，腾讯云学生服务器腾讯云也推出了9.9元购买 云服务器 的优惠活动，是一款固定的优惠套餐，包含特价 云服务器 、域名(加钱可选)、免费 对象存储 空间（6个月），但是好多用户却不知道在哪里申请，需要什么条件，流程是怎么样的，下面给大家做个介绍 blob.jpg 学生服务器 官网链接 腾讯云学生服务器官网： https://cloud.tencent.com/act/campus 套餐包含特价云服务器、域名(可选)、50G免费 对象存储 空间（6个月）；每日限量100个，每个用户限购1个，并赠送2次体验价续费机会，优惠续费需在本页面进行。 活动链接 blob.jpg blob.jpg 活动对象 面向腾讯云官网通过个人认证的在校大学生。 如果你是学生身份的话，速速注册腾讯云领取学生服务器。 【注】企业用户、协作者、后付费用户暂不支持参与此活动。 活动规则 特别注意 ： 符合条件的用户可购买腾讯云服务器校园优惠套餐，套餐内包含云服务器，对象存储，域名（可选），可选产品需加价购买 同一个身份证号码、手机号对应的多个账号仅限一个帐号购买 特别注意 ： 本套餐每日限量100个，每个用户限购1个，此前购买旧版学生套餐的用户也可购买 活动购买的云服务器，每台服务器仅可绑定1个ip 若提升了配置，或调整了网络带宽，将无法进行优惠续费 不支持降配和带宽计费模式切换

store a pdf in mysql

由 删除回忆录丶 提交于 2019-12-01 19:31:13
How would you store a PDF document in a field in mysql? Currently I have a list of customers and each customer has a certificate with information about their account that they can give to other companies to prove that they're our customer. Currently their certificate is exported as a pdf and e-mailed to someone here at work (the customer gets a physical copy as well), and that person's mailbox is filled with these e-mails. I'd much prefer to just have it in the customer's record - allowing it to be accessed via the customer's file in our in-house CRM. I considered putting the PDFs in a folder
订阅 blob