问题
I have the following SQL:
CREATE TABLE Documents (
Id INT NOT NULL,
UserId INT NOT NULL,
Label CHARACTER VARYING(220) NOT NULL,
Image BYTEA NOT NULL,
PRIMARY Key(Id),
FOREIGN KEY (UserId) REFERENCES Users(Id)
);
I want to know, How should I have to insert the Base64 image into the table.
The Base64 string comes from a Buffer from after getting the image using the fs module on Node.js.
I'm attempting to insert the image using raw queries of Sequelize, but I have not found proper information on this.
回答1:
To answer the question regarding Postgres and Sequelize:
You will need to use the Sequelize.BLOB('tiny')
datatype to model a BYTEA
Postgres datatype.
Here is more information about datatypes in Sequelize (it also contains the above information):
http://docs.sequelizejs.com/manual/data-types.html
When converting into a tiny blob, Postgres will default to utf-8, meaning you'll probably want to turn your data into a utf-8 encoding, store the data, and the read it as utf-8.
EDIT:
You will use Base64 to encode the image binary data into an ASCII string: https://developer.mozilla.org/en-US/docs/Web/API/WindowBase64/Base64_encoding_and_decoding
回答2:
Try this:
insert into table_name (image)
values decode('AcAAFBAO5Az....AQAAAFBCO5gT/AEAABT', 'base64')
Here is some information about decode
https://www.base64decode.net/postgresql-decode
来源:https://stackoverflow.com/questions/55170508/postgresql-how-to-insert-base64-images-strings-into-a-bytea-column