How do you efficiently store and retrieve BLOB and CLOB files in MySQL?

Storing BLOB and CLOB Files in MySQL

Inserting images and various file formats (.docx/.doc, .pptx/.ppt, .pdf) into a database can be a common requirement for software applications. MySQL provides a convenient way to store these binary large objects (BLOBs) and character large objects (CLOBs) within tables.

There are two primary methods to accomplish this insertion:

1. LOAD_FILE Function:

This function allows you to insert a file directly into a BLOB field. Simply reference the file path like so:

INSERT INTO table1 VALUES(1, LOAD_FILE('data.png'));

2. Hex String Insertion:

Alternatively, you can convert the file into a hexadecimal string and insert it into a BLOB or CLOB field. This method might be more performant for large files. Here's an example:

INSERT INTO table1 VALUES 
  (1, x'89504E470D0A1A0A0000000D494844520000001000000010080200000090916836000000017352474200AECE1CE90000000467414D410000B18F0BFC6105000000097048597300000EC300000EC301C76FA8640000001E49444154384F6350DAE843126220493550F1A80662426C349406472801006AC91F1040F796BD0000000049454E44AE426082');

Both methods can be used to efficiently insert and retrieve BLOB and CLOB files in MySQL, allowing you to store and manage various file formats alongside your other data.

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