How To Write on PDF Online?
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I want to write details to a PDF file from a database using PHP. How do I do this?
The BLOB datatype (Binary Large Object) is the way to go. In PostgreSQL, it is called a bytea (Byte array) or text data type. Please have a look here. BinaryFilesInDB - PostgreSQL wiki If the PDF files are not too large (< 1GB), I would store them in the database, because you get all the nice ACID features plus you can retrieve them using JDBC/ODBC, as you do with the rest of your data. If you just store the reference to the file in the database and store the file in the file system, you have to take care of tracking the files and keeping your references consistent and you have to find a way to programmatically access the files on the file system, which involves additional non-JDBC/ODBC logic.
Write on PDF: All You Need to Know
It's not all sunshine and rainbows in the file system world, though, as the format is not well-supported in some DBMS's — Oracle, for example. I would use this file system for those databases I know I will never be able to move into a modern OS, so I can continue to use it. Finally, if you need to save files larger than your database can handle, consider doing it using one of the native libraries for PostgreSQL, such as Construct. This library works great in our case since we don't have any external libraries that change the way the file is stored on disk. In my case, I'm saving images, using the PNG image format. In addition to PNG, there is also GIF (compressed image), JPEG (JPEG image), and tiff (compressed audio). The GIF, JPEG, and tiff formats are supported by PostgreSQL, but it might require slightly more code.
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