What image type to choose in navicat

Navicat image type selection depends on the database system and image storage method. Typically, MySQL, PostgreSQL, and SQL Server use BLOB; PostgreSQL uses BYTEA; foreign key references are suitable when images are stored in external systems. Specific selection steps: (1) Determine the database system; (2) Determine the image storage method; (3) Select the corresponding image type in Navicat as required.

Navicat image type selection

In Navicat, the selection of image type depends on the specific requirements of the database system and How images are stored.

Common database systems support image types

• MySQL: Supports Blob and MediumBlob types.
• PostgreSQL: Supports ByteA and LargeObject types.
• SQL Server: Supports VarBinary and Image types.
• Oracle: Supports Blob and BFile types.

How to store pictures

• Binary Large Object (BLOB): Store pictures as binary data, do not perform Any compression or conversion.
• Large Object (LOB): Similar to BLOB, used to store very large pictures.
• Foreign key reference: Store the picture in the file system or external object storage, and associate it to the database record through foreign key reference.

Picture type selection in Navicat

In Navicat, according to the database system and picture storage method, the following picture types are usually used:

• BLOB: Applies to images in MySQL, PostgreSQL and SQL Server without compression or conversion.
• BYTEA: Applies to images that are not compressed or converted in PostgreSQL.
• Foreign key reference: Suitable for situations where the image is stored in an external system (such as a file system or object storage).

Specific selection steps

1. Determine the database system to be used.
2. Determine how the image is stored (BLOB, LOB or foreign key reference).
3. According to the database system and storage method, select the corresponding image type in Navicat.

Example

• To store images in a BLOB column in a MySQL database, select the "Blob" type in Navicat.
• To store the image in a ByteA column in the PostgreSQL database, select the "ByteA" type in Navicat.
• To store the picture in the file system and associate it with a SQL Server database record using a foreign key reference, select the "Foreign Key Reference" type in Navicat.

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