blob

304: The condition specified using HTTP conditional header(s) is not met

倾然丶 夕夏残阳落幕 提交于 2019-12-01 03:52:20
I'm currently storing files within Azure Blob Storage and when I request the files I get an message in firebug of 304 “The condition specified using HTTP conditional header(s) is not met” I've looked at Azure Blob: "The condition specified using HTTP conditional header(s) is not met" and its a similar question but I'm not reading the content in using blob.openread etc... I'm just trying to view the content in a browser. If I do a control refresh (ctrl and f5) in firefox I get a response of 200 - so its being served out correctly. I've set the cache control (max-age=3600, public) on the file I

Error- ORA-22835: Buffer too small for CLOB to CHAR or BLOB to RAW conversion

孤者浪人 提交于 2019-12-01 03:37:15
I am attempting to read a blob message and display it as a variable in one of my procedures, but am getting the error below: Error - ORA-22835: Buffer too small for CLOB to CHAR or BLOB to RAW conversion (actual: 9923, maximum: 2000) I have googled and found a suggestion to trim the blob message as below, but would rather display the complete blob message as a string. UTL_RAW.CAST_TO_VARCHAR2(dbms_lob.substr(variable_name,2000,1)) How can I display the complete message? Is there a setting on either the database or procedure level that I can change? I got this worked by using the option

Spring 数据库处理Clob/Blob大对象

旧巷老猫 提交于 2019-12-01 03:20:04
#概述 使用Spring的时候需求上难免说需要存储一下几种类型: 文本 图片 二进制 处理对象 Spring 支持通过 LobCreator/LobHandler 进行处理大对象 BLOB byte[] — getBlobAsBytes and setBlobAsBytes InputStream — getBlobAsBinaryStream and setBlobAsBinaryStream CLOB String — getClobAsString and setClobAsString InputStream — getClobAsAsciiStream and setClobAsAsciiStream Reader — getClobAsCharacterStream and setClobAsCharacterStream 入口 看到方法名就知道,在调用前会被执行一遍,刚好看看这个对象的实现,只有 AbstractLobCreatingPreparedStatementCallback ,接下来看看源码,看看有没有例子。 就是我想要的 使用例子 final File blobIn = new File("spring2004.jpg"); final InputStream blobIs = new FileInputStream(blobIn); final File

SQLite - Is it possible to insert a BLOB via insert statement?

↘锁芯ラ 提交于 2019-12-01 02:48:14
I'm developing an Android application and i'm using a Sqlite database to store some bitmaps. I want some images to be automatically inserted when the user installs the application. I'm using the SQLiteOpenHelper class like this: public class DatabaseHelper extends SQLiteOpenHelper { ... DatabaseHelper(Context context, String nameOfDB, int version, String[] scriptSQLCreate, String scriptSQLDelete) { super(context, nameOfDB, null, version); this.scriptSQLCreate = scriptSQLCreate; this.scriptSQLDelete = scriptSQLDelete; } @Override public void onCreate(SQLiteDatabase db) { int numScripts =

Postgresql, JDBC, and streaming BLOBs

家住魔仙堡 提交于 2019-12-01 02:19:06
I am trying to retrieve a blob from a postgres database using the jdbc drivers. It is too big to have in memory so I want to stream it as a download. I tried using the getBinaryStream method on ResultSet, but it turns out that this method actually reads it all into memory, so doesn't work for large file. Apparently, one can use the getBlob method on the resultset and the presumeably get the inputstream from the blob and go from there, but that is where I run into my problem. PreparedStatement ps = con.prepareStatement("select data from file_data WHERE ID = ?"); ps.setLong(1,file.fileData.id)

Physical location of FILESTREAM data

£可爱£侵袭症+ 提交于 2019-12-01 01:30:18
How could I know the physical location (so I can see it in Windows Explorer) path of a FILESTREAM data that I've just inserted into DB? There is one option for this: method PhysicalPathName(). If you are on SQL Server 2012 or upper now, this code will work for you: SELECT stream.PhysicalPathName() AS 'Path' FROM Media OPTION (QUERYTRACEON 5556) For SQL Server 2008/2008 R2 you will need to enable trace flag 5556 for the whole instance: DBCC TRACEON (5556, -1) GO or for the particular connection in which you are calling PhysicalPathName() method: DBCC TRACEON (5556, -1) GO I know this is an

Download file from Blob URL with Python

陌路散爱 提交于 2019-12-01 01:28:22
I wish to have my Python script download the Master data (Download, XLSX) Excel file from this Frankfurt stock exchange webpage . When to retrieve it with urrlib and wget , it turns out that the URL leads to a Blob and the file downloaded is only 289 bytes and unreadable. http://www.xetra.com/blob/1193366/b2f210876702b8e08e40b8ecb769a02e/data/All-tradable-ETFs-ETCs-and-ETNs.xlsx I'm entirely unfamiliar with Blobs and have these questions: Can the file "behind the Blob" be successfully retrieved using Python? If so, is it necessary to uncover the "true" URL behind the Blob – if there is such a

Download Excel file from server and save on client

别来无恙 提交于 2019-12-01 00:57:34
问题 I have a JavaScript app and an API that creates a Excel file and returns a byte array with the following headers: Content-Type: application/vnd.openxmlformats-officedocument.spreadsheetml.sheet Content-Disposition:attachment; filename=List.xlsx When I go the Excel resource API URL I'm prompted to download the Excel file. If I do so, it downloads fine and opens in Excel. All is good. Now to the problem: What I don't want is to expose the API URL in the user's browser window, so my goal is to:

304: The condition specified using HTTP conditional header(s) is not met

泪湿孤枕 提交于 2019-12-01 00:57:34
问题 I'm currently storing files within Azure Blob Storage and when I request the files I get an message in firebug of 304 “The condition specified using HTTP conditional header(s) is not met” I've looked at Azure Blob: "The condition specified using HTTP conditional header(s) is not met" and its a similar question but I'm not reading the content in using blob.openread etc... I'm just trying to view the content in a browser. If I do a control refresh (ctrl and f5) in firefox I get a response of

Show image from blob in javascript

こ雲淡風輕ζ 提交于 2019-12-01 00:27:24
问题 i am using localstorage html5. first i am saving mysql db values into localstorage then i am fetching where i want.its fine. i want to save images (like images of products) into localstorage and then want to show them where i want, i did an experiment as I saved images in blob in mysql, and i am able to fetch and show them using php but i dont want to use php here,the purpose is of offline working.i am unable to show image via javascript any one can help me?? There might be two ways, one is