bytea

If you want to store binary data in PostgreSQL, such as Word, Excel files, and image files, you can use bytea columns. Bytea is a field type unique to PostgreSQL for storing binary data. It is similar to blob and Binary Large Object Types in SQL

Use the bytea field of PostgreSQL to store and handle read errors. The bytea field type in PostgreSQL can store data in binary format. the advantage of this is that the files originally stored in the website directory can be stored in the database,

The Bytea field type in PostgreSQL can store data in binary form, and the benefit is that files stored in a Web site directory can be stored in a database, and the downside is that if the file is too large, it can result in a large increase in the

It took nearly two days to upload the space-based documents in batches. The original document was originally stored in the folder under the website directory as a file, and then stored in the bytea field of PostgreSQL. This field is equivalent to

The bytea field type in PostgreSQL can store data in binary format. The advantage of this is that the files originally stored in the website directory can be stored in the database, the disadvantage is that if there are too many files or too many

Java is used to develop PostgreSQL database compatibility applications, which is different from Oracle: Oracle JDBC driverProgramThe Java string type can be properly mapped to the numberic (integer) of the database, while the Postgres will fail.

First, the geometry type in the PostGISPostGIS supports the "simple Features" type of all OGC specifications, and on this basis expands support for 3DZ, 3DM, and 4D coordinates.1. OGC WKB and WKT formatsThe OGC defines two formats for describing

First, the summaryThe current project was originally based on Oracle development and is now being ported to PostgreSQL. Given that JPA has been used to achieve object persistence, the leader has always thought that the migration task is easy, but

Many people on the internet use the COM port to connect to the mobile phone, use the mobile phone modem, use the AT command to send text messages, introduce the principles of PDU encoding, and write a ready-made class for reference and

This is a creation in Article, where the information may have evolved or changed. Reflective packets have an interface: type, and a struct value; Type interface The Commontype type implements the type interface, and the following are the various