Just for kicks, here it is with a worker thread and File System Access API No idea if either of those things help, I have no 6gb files. This will get the reading off the main thread so that does help performance in some sense. Object.assign( new Worker( URL.createObjectURL( new Blob( [ `self.onmessage = async … Read more
I read that the data type can be used to store files. According to MySQL manual page on Blob, A BLOB is a binary large object that can hold a variable amount of data. Since it’s a data type specific to store binary data it’s common to use it to store files in binary format, … Read more
The other answer is right, but I thought I should add some info for the sake of completeness. It mainly depends on what you pass to createObjectURL. If you pass a File selected by the user from an <input type=file>, then the blobURI you created is a direct pointer to the file on the user’s … Read more
Just split your userid from behind. e.g. UserID = 6435624 Path = /images/24/56/6435624 As for the backup you could use MySQL Replication and backup the slave database to avoid problems (e.g. locks) while backuping.
The reason is that the response type is blob. In case of error, the status code is available directly in your exception object. However, the response is a promise. What you need to do is: .catch((error) => { let statusCode = error.response.status let responseObj = await error.response.data.text(); : : For more details you can read … Read more
The update approach you mention in the first case can be rewritten using pure JDBC code and thus reduce your dependency on Oracle-specific classes. This could be helpful if your app needs to be database agnostic. public static void updateBlobColumn(Connection con, String table, String blobColumn, byte[] inputBytes, String idColumn, Long id) throws SQLException { PreparedStatement … Read more
VARBINARY is bound to 255 bytes on MySQL 5.0.2 and below, to 65kB on 5.0.3 and above. BLOB is bound to 65kB. Ultimately, VARBINARY is virtually the same as BLOB (from the perspective of what can be stored in it), unless you want to preserve compatibility with “old” versions of MySQL. The MySQL Documentation says: … Read more
I’m confused. Emmanuel Bernard wrote in ANN-418 that @Lob are lazy by default (i.e. you don’t even need to use the @Basic(fetch = FetchType.LAZY) annotation). Some users report that lazy loading of a @Lob doesn’t work with all drivers/database. Some users report that it works when using bytecode instrumentation (javassit? cglib?). But I can’t find … Read more
So, these are actually two different problems. The Desktop Chrome warning was a bug in chrome which is fixed since 2013-03-21. Mobile Chrome is giving you a TypeError because the blob constructor is not supported. Instead you must use the old BlobBuilder API. The BlobBuilder API has browser specific BlobBuilder constructors. This is the case … Read more